15CrMoG bending is a pipe bend that used in high-pressure boiler (working pressure 9.8MPa or more generally, the working temperature between 450650 of heating surface tubes, header, economizer, superheater, reheater and so on. Its performance is much higher than the general seamless steel pipe, because the inside of this tube contains CR more, its alloy steel tube high temperature, low-temperature, corrosion resistance of other seamless steel tubes, so the alloy tube in the petroleum, chemical, electric power, boiler and other industries are more widely used.

What is 15crmo equivalent astm material material?

15CrMoG is a type of steel commonly used in power generation equipment and industrial boilers. Bending refers to the process of shaping or curving the steel to a desired angle or shape without breaking or damaging it. Therefore, 15CrMoG bending could refer to the process of shaping this specific type of steel using bending machines or techniques to create certain components or structures for boilers or other equipment.

The production method of seamless steel pipe can be roughly divided into cross rolling method (menesmann method) and extrusion method. The cross rolling method (menesmann method) is to pierce the tube blank with the cross roll first, and then extend it with the rolling mill. This method is fast in production, but requires high machinability of tube blank. It is mainly suitable for producing carbon steel and low alloy steel tube, 15crmo equivalent ASTM material tube.

In the face of domestic and foreign steel situation, based on the advantages of production and inventory, we have established our own processing center, and our manufacturing includes different types. Steel 15CrMo equivalent ASTM material surface treatment such as steel pretreatment (shot peening and shop primer), steel galvanizing; steel structure processing such as cutting, drilling, milling, turning, bending, welding, etc.

The mechanical properties of 15CrMo equivalent ASTM material, boiler pressure components steel include strength, plasticity, toughness and fatigue properties. Temperature has a great influence on the mechanical properties of steel. With the increase of temperature, the yield limit of all kinds of steel will monotonically decrease, but the tensile strength will rise to a high peak at a certain temperature, and then decrease.

The main competitive means adopted by major domestic ports are to expand ports, build deep-water berths and channels, improve service quality to reduce the comprehensive cost of customers, and at the same time, to improve competitive advantage, we should also take appropriate measures to reduce relevant costs and prices.

PMI testing

15CrMoG alloy pipe for High Pressure Boiler description

Standard: GB 5310

Relative grades: 20G, 20MnG, 15MoG, 15CrMoG, 12Cr2MoG, 12Cr1MoVG. After consultation, can also supply other grades of steel.

15CrMoG Alloy steel pipe is a seamless steel tube, its performance is much higher than the general seamless steel pipe, because the inside of this tube contains CR more, its alloy steel tube high temperature, low-temperature, corrosion resistance of other seamless steel tubes, so the alloy tube in the petroleum, chemical, electric power, boiler and other industries are more widely used.

Chemical Composition (%)

The chemical composition of 15CrMoG alloy pipe plays a crucial role in its mechanical properties and performance. The presence of 15% chromium and molybdenum imparts excellent high-temperature strength and creep resistance. Additionally, the alloy contains carbon, manganese, silicon, and small amounts of other elements, contributing to its overall properties.

The chemical composition of 15CrMoG alloy steel is as follows:

Material	C	Mn	Si	Cr	Mo	Ni	Nb+Ta	S	P
15CrMo	0.12~0.18	0.40~0.70	0.17~0.37	0.80~1.10	0.40~0.55	≤0.30	_	≤0.035	≤0.035

PMI test for 15CrMoG alloy pipe

To perform a PMI test on a 15CrMoG alloy pipe, you typically use handheld or portable X-ray fluorescence (XRF) analyzers or optical emission spectrometers.

Mechanical properties

Material	Yield strength σs/MPa (>=)	Tensile strength σb/MPa (>=)	Elongation δ5/% (>=)
15CrMo	440~640	235	21

The mechanical properties of 15CrMoG alloy pipe are impressive, making it suitable for use in extreme conditions. It exhibits high tensile strength, superior toughness, and exceptional resistance to deformation under high pressures and temperatures.

Steel Material equivalent of SCM415

Country	Standard	Material
USA	SAE/AISI/UNS	-
Germany	DIN,WNr	15CrMO \| 1.7262
China	GB	15CrMo
Japan	JIS	SCM415
France	AFNOR	15CD4.05
England	BS	1501-620 \| Cr31
Italy	UNI	-
Poland	PN	-
Czechia	CSN	-
Austria	ONORM	-
Sweden	SS	-
Spain	UNE	-

Heat Treatment of 15CrMo Alloy Round Steel

Heat treatment is a highly effective means of improving and modifying the properties of 15CrMo alloy round steel. It plays a very important role in product reliability and economy. Heat treatment of 15CrMo alloy round steel usually includes ordinary heat treatment (annealing, normalising, quenching, tempering) and surface heat treatment (surface quenching and chemical heat treatment - carburising, nitriding, metallising, etc.).

In mechanical engineering, many machine parts, such as crankshafts, gears, camshafts of internal combustion engines and gears in important reduction gears, require not only sufficient toughness, plasticity and bending strength in the core, but also a high surface thickness within a certain thickness. hardness, high wear resistance and high fatigue strength. It is difficult to meet the above performance requirements simultaneously with the above various overall heat treatment methods, and the use of surface heat treatment is the most effective method to meet these performance requirements simultaneously.

Surface heat treatment is a heat treatment method that changes the surface properties of 15CrMo alloy round steel by changing the structure of the surface layer.

Surface quenching is a heat treatment that gradually changes the surface structure without changing the chemical composition of the surface. It can be carried out by high-frequency, medium-frequency or power-frequency induction heating method or flame heating method. The common feature is that the surface of 15CrMo alloy round steel is quickly heated to the quenching temperature, and when the heat is not transferred to the core of the part, it is quickly cooled, so that the surface hardness is high, but the core still has high toughness.

Chemical heat treatment is a heat treatment method that changes the chemical composition and structure of the surface layer of 15CrMo alloy round steel. Chemical heat treatment can be divided into methods such as carburizing, nitriding, carbonitriding and metallising according to the different elements infiltrated on the surface of 15CrMo alloy round steel. It is very effective in improving and enhancing the wear resistance, corrosion resistance and fatigue resistance of 15CrMo alloy round steel. At present, chemical heat treatment has developed rapidly, and there are many applications of new technologies.

15CrMoG alloy pipe heat treatment: Normalizing and tempering

Normalizing temperature: 900 °C-960 °C
Tempering temperature: 680 °C-730 °C

The W.T. tolerance of 15CrMoG alloy pipe

W.T.(S)		Tolerance of W.T.
<3.5		+15%(+0.48mm min)
<3.5		-10%(+0.32mm min)
3.5-20		+15%,-10%
>20	D<219	±10%
>20	D≥219	+12.5%,-10%

The principle of purifying hydrogen from 15CrMoG alloy pipe is that, at 300-500 ℃, hydrogen is adsorbed on the side of the 15CrMoG alloy steel tube, and the hydrogen is absorbed on the 1515CrMoG alloy steel pipe wall, because of the lack of two electrons in the 4d electron layer of palladium, It can produce unstable chemical bonds with hydrogen (this reaction of palladium and hydrogen is reversible), under the action of Palladium, hydrogen is ionized to proton its radius is 1.5x1015m, and the lattice constant of palladium is 3.88x10-10m (20 ℃), so it can pass 15CrMoG alloy steel pipe, Under the action of Palladium, protons are combined with electrons to form hydrogen molecules, escaping from the other side of the 15CrMoG alloy steel tube.

Application

For high-pressure boiler (working pressure 9.8MPa or more generally, the working temperature between 450℃-650℃) of heating surface tubes, header, economizer, superheater, reheater and so on.

Classification, code
a) Hot rolled steel pipe, codenamed WH;
b) Cold drawn steel pipe, codenamed WC.

Delivery status

The steel tubes shall be delivered in a heat treated condition.

Length: 5800mm; 6000mm; 6096mm; 7315mm; 11800mm; 12000mm; and so on.

Max length: 16000mm, also U bending can be offered.

Note:

This inventory is part of the inventory, demand and other models in stock or order materials, please contact us.

Related 15CrMoG Bending

What Is a Pipe Bend?

Pipe Bend Manufacturing Process

A pipe bend is a change in direction within a piping system, commonly referred to as an offset.

Pipe bends are usually custom manufactured using bending machines and are designed for specific routing requirements. Unlike elbows, bends provide a smoother flow path and reduced turbulence.

The most common bend radii used in industry are 1.5D, 3D, 5D and 10D. Long-radius bends generally provide lower pressure loss and improved flow performance.

Pipe bends are widely used in chemical processing, oil & gas, power generation, shipbuilding, metallurgy and many other industrial applications.

The Radii of Bend Pipes

Bend pipes are available in various radii including 3D, 4D, 5D, 8D and 10D configurations. For example, the centerline radius of a 5D bend equals five times the nominal pipe diameter.

Modern pipe bending equipment enables highly accurate manufacturing with excellent dimensional control and repeatability.

Difference Between Pipe Bends and Elbows

Item	Pipe Bend	Elbow
Radius	More than 2D	1D to 2D
Flow Performance	Smoother Flow	Higher Turbulence
Pressure Drop	Lower	Higher
Manufacturing	Bending Process	Fitting Fabrication

Common Pipe Bending Methods

Induction Bending

Uses localized induction heating to produce precise large-radius bends while maintaining material properties.

Ram-Type Bending

An economical bending method commonly used in fabrication workshops and exhaust manufacturing.

Roll Bending

Suitable for producing very large radii in construction and structural applications.

Mandrel Bending

Produces high-quality bends with minimal deformation and excellent dimensional accuracy.

Rotary Draw Bending

Frequently used when consistent diameter and superior surface finish are required.

Bend Geometry

Typical flow patterns and wear zones in a long-radius bend.

Long-radius bends provide a gradual change in flow direction and help reduce particle impact and pipe wear.

Common bend classifications include:

Elbow (RB/D = 1 to 2.5)
Short Radius (RB/D = 3 to 7)
Long Radius (RB/D = 8 to 14)
Long Sweep (RB/D = 15 to 24)

Specification of Pipe Bends

Dimensions	Standards
Outside Diameter	1/2" – 36"
Bending Radius	3D, 5D, 10D or Custom
Angle	Up to 180°
Wall Thickness	SCH5 to XXS
Materials	Carbon Steel, Stainless Steel, Alloy Steel, Duplex and Nickel Alloys

```

Size

The bend is used to change the direction of run of pipe.it advantage is can matach long distance transition requirements,so it is commonly that bends dimension according to customer design.

Constants for Pipe Bends:

Formula:L = R x BL = Length of pipe requiredR = Radius of bendB = Constant from table used to find “L”L =30 x 1.5705 =47.115 in.or 47-1/8”

Standards accord to：

ASME B16.9
ASME B16.28
ANSI/ASME B16.25
MSS SP-97

Pressure: SCH5 to SCH160

Bending radius(R): R=3D, 5D, 7D and 12D
Bending angle (θ):15°, 30°, 45°, 60°, 90°, 135°, 180°

Outer diamete(D): D≤1800mm
Wall thickness(T): T≤120mm
Straight Length (L): The length between two ends general from 300mm-1500mm

Example: Find the length of pipe required to make a 90 bend with a radius of 30"

Nominal pipe	Outside Diameter at Bevel				Center to End
DN size	D1		D2		C	M
DN size	Series A	Series B	Series A	Series B
20×15	26.9	25	21.3	18	29	29
25×20	33.7	32	26.9	25	38	38
25×15	33.7	32	21.3	18	38	38
32×25	42.4	38	33.7	32	48	48
32×20	42.4	38	26.9	25	48	48
32×15	42.4	38	21.3	18	48	48
40×32	48.3	45	42.4	38	57	57
40×25	48.3	45	33.7	32	57	57
40×20	48.3	45	26.7	25	57	57
40×15	48.3	45	21.3	18	57	57
50×40	60.3	57	48.3	45	64	60
50×32	60.3	57	42.4	38	64	57
50×25	60.3	57	33.7	32	64	51
50×20	60.3	57	26.9	25	64	44
65×50	76.1(73)	76	60.3	57	76	70
65×40	76.1(73)	76	48.3	45	76	67
65×32	76.1(73)	76	42.4	38	76	64
65×25	76.1(73)	76	33.7	32	76	57
80×65	88.9	89	76.1(73)	76	86	83
80×50	88.9	89	60.3	57	86	76
80×40	88.9	89	48.3	45	86	73
80×32	88.9	89	42.4	38	86	70
90×80	101.6	-	88.9	-	95	92
90×65	101.6	-	76.1(73)	-	95	89
90×50	101.6	-	60.3	-	95	83
90×40	101.6	-	48.3	-	95	79
100×90	114.3	-	101.6	-	105	102
100×80	114.3	108	88.9	89	105	98
100×65	114.3	108	76.1(73)	76	105	95
100×50	114.3	108	60.3	57	105	89
100×40	114.3	108	48.3	45	105	86
125×100	139.7	133	114.3	108	124	117
125×90	139.7	-	101.6	-	124	114
125×80	139.7	133	88.9	89	124	111
125×65	139.7	133	76.1(73)	76	124	108
125×50		133	60.3	57	124	105
150×125	168.3	159	139.7	133	143	137
150×100	168.3	159	114.3	108	143	130
150×90	168.3	-	101.6	-	143	127
150×80	168.3	159	88.9	89	143	124
150×65	168.3	159	76.1(73)	76	143	121
200×150	219.1	219	168.3	159	178	168
200×125	219.1	219	139.7	133	178	162
200×100	219.1	219	114.3	108	178	156
200×90	219.1	-	101.6	-	178	152
200×200	273	273	219.1	219	216	208
200×150	273	273	168.3	159	216	194
200×125	273	273	139.7	133	216	191
200×100	273	273	114.3	108	216	184
300×250	323.9	325	273	273	254	241
300×200	323.9	325	219.1	219	254	229
300×150	323.9	325	168.3	159	254	219
300×125	323.9	325	139.7	133	254	216
350×300	355.6	377	323.9	325	279	270
350×250	355.6	377	273	273	279	257
350×200	355.6	377	219.1	219	279	248
350×150	355.6	377	168.3	159	279	238
400×350	406.4	426	355.6	377	305	305
400×300	406.4	426	323.9	325	305	295
400×250	406.4	426	273	273	305	283
400×200	406.4	426	219.1	219	305	273
400×150	406.4	426	168.3	159	305	264
450×400	457.2	478	406.4	426	343	330
450×350	457.2	478	355.6	377	343	330
450×300	457.2	478	323.9	325	343	321
450×250	457.2	478	273	273	343	308
450×200	457.2	478	219.1	219	343	298
500×450	508	529	457.2	478	381	368
500×100	508	529	406.4	426	381	356
500×350	508	529	355.6	377	381	356
500×300	508	529	323.9	325	381	346
500×250	508	529	273	273	381	333
500×200	508	529	219.1	219	381	324
550×500	559	-	508	-	419	406
550×450	559	-	457	-	419	394
550×400	559	-	406	-	419	381
600×550	610	-	559	-	432	432
600×550	610	630	508	530	432	432
600×450	610	630	457	480	432	419
650×600	660	-	610	-	495	483
650×550	660	-	559	-	495	470
650×500	660	-	508	-	495	457
700×650	711	-	660	-	521	521
700×600	711	720	610	630	521	508
700×550	711	-	559	-	521	495
750×700	762	-	711	-	559	546
750×650	762	-	660	-	559	546
750×600	762	-	610	-	559	533
800×750	813	-	762	-	597	584
800×700	813	820	711	720	597	572
800×650	813	-	660	-	597	572
850×800	864	-	813	-	635	622
850×750	864	-	762	-	635	610
850×700	864	-	711	-	635	597
900×850	914	-	864	-	673	660
900×800	914	920	813	820	673	648
900×750	914	-	762	-	673	635
950×900	965	-	914	-	711	711
950×850	965	-	864	-	711	698
950×800	965	-	813	-	711	686
1000×950	1016	-	965	-	749	749
1000×900	1016	1020	914	920	749	737
1000×8500	1016	-	864	-	749	724
1000×1000	1067	-	1016	-	762	711
1050×950	1067	-	965	-	762	711
1050×900	1067	-	914	-	762	711
1100×1050	1118	-	1067	-	813	762
1100×1000	1118	1120	1016	1020	813	749
1100×950	1118	-	965	-	813	737
1150×1100	1168	-	1118	-	851	800
1150×1050	1168	-	1067	-	851	787
1150×1000	1168	-	1016	-	851	775
1200×1150	1220	-	1168	-	889	838
1200×1100	1220	1220	1118	1120	889	838
1200×1050	1220	-	1067	-	889	813

Standard

Pipe fitting dimensions are in either metric or Standard English.

Because pipe fitting covers Pipe Fitting Dimensions several aspects, only the most common pipe fitting sizes can be given here. The most applied version is the 90° long radius and the 45° elbow, while the 90° short radius elbow is applied if there is too little space. The function of a 180° elbow is to change direction of flow through 180°. Both, the LR and the SR types have a center to center dimension double the matching 90° elbows. These fittings will generally be used in furnesses or other heating or cooling units.

Some of the standards that apply to buttwelded fittings are listed below. Many organizations such as ASME, ASTM, ISO, MSS, etc. have very well developed standards and specifications for buttwelded fittings. It is always up to the designer to ensure that they are following the applicable standard and company specification, if available, during the design process.

Some widely used pipe fitting standards are as follows:

ASME American Society for Mechanical Engineers

This is one of the reputed organizations in the world developing codes and standards.
The schedule number for pipe fitting starts from ASME/ANSI B16. The various classifications of ASME/ANSI B16 standards for different pipe fittings are as follows:

ASME/ANSI B16.1 – 1998 – Cast Iron Pipe Flanges and Flanged Fittings
ASME/ANSI B16.3 – 1998 – Malleable Iron Threaded Fittings
ASME/ANSI B16.4 – 1998 – Cast Iron Threaded Fittings
ASME/ANSI B16.5 – 1996 – Pipe Flanges and Flanged Fittings
ASME/ANSI B16.11 – 2001 – Forged Steel Fittings, Socket-Welding and Threaded
ASME/ANSI B16.14 – 1991 – Ferrous Pipe Plugs, Bushings and Locknuts with Pipe Threads
ASME/ANSI B16.15 – 1985 (R1994) – Cast Bronze Threaded Fittings
ASME/ANSI B16.25 – 1997 – Buttwelding Ends
ASME/ANSI B16.36 – 1996 – Orifice Flanges etc.

ASTM International American Society for Testing and Materials

This is one of the largest voluntary standards development organizations in the world. It was originally known as the American Society for Testing and Materials (ASTM).

ASTM A105/A105M – Specification for Carbon Steel Forgings for Piping Applications
ASTM A234/A234M – Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service
ASTM A403/A403M – Specification for Wrought Austenitic Stainless Steel Piping Fittings
ASTM A420/A420M – Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low-Temperature Service

AWWA: American Water Works Association

AWWA About – Established in 1881, the American Water Works Association is the largest nonprofit, scientific and educational association dedicated to managing and treating water, the world’s most important resource.

AWWA C110 – Ductile-Iron and Gray-Iron Fittings, 3 Inch Through 48 Inch (75 mm Through 1200 mm), for Water and Other Liquids
AWWA C208 – Dimensions for Fabricated Steel Water Pipe Fittings

ANSI The American National Standards Institute

ANSI is a private, non-profit organization. Its main function is to administer and coordinate the U.S. voluntary standardization and conformity assessment system. It provides a forum for development of American national standards. ANSI assigns "schedule numbers". These numbers classify wall thicknesses for different pressure uses.

MSS STANDARDS: Manufacturers Standardization Society

The Manufacturers Standardization Society (MSS) of the Valve and Fittings Industry is a non-profit technical association organized for development and improvement of industry, national and international codes and standards for: Valves, Valve Actuators, Valve Modification, Pipe Fittings, Pipe Hangers, Pipe Supports, Flanges and Associated Seals

MSS SP-43 – Wrought Stainless Steel Butt-Welding Fittings Including Reference to Other Corrosion Resistant Materials
MSS SP-75 – Specifications for High Test Wrought Buttwelding Fittings
MSS SP-73 – Brazing Joints for Copper and Copper Alloy Pressure Fittings
MSS SP-83 – Class 3000 Steel Pipe Unions, Socket-Welding and Threaded
MSS SP-97 – Integrally Reinforced Forged Branch Outlet Fittings — Socket Welding, Threaded, and Buttwelding Ends
MSS SP-106 – Cast Copper Alloy Flanges and Flanged Fittings Class 125,150, and 300
MSS SP-119 – Factory-Made Wrought Belled End Socket Welding Fittings

Difference between "Standard" and "Codes"

Piping codes imply the requirements of design, fabrication, use of materials, tests and inspection of various pipe and piping system. It has a limited jurisdiction defined by the code. On the other hand, piping standards imply application design and construction rules and requirements for pipe fittings like adapters, flanges, sleeves, elbows, union, tees, valves etc. Like a code, it also has a limited scope defined by the standard.

Factors affecting standards

"Standards" on pipe fittings are based on certain factors like as follows:

Pressure-temperature ratings
Size
Design
Coatings
Materials
Marking
End connections
Dimensions and tolerances
Threading
Pattern taper etc.

BSP British Standard Pipe

BSP is the U.K. standard for pipe fittings. This refers to a family of standard screw thread types for interconnecting and sealing pipe ends by mating an external (male) with an internal (female) thread. This has been adopted internationally. It is also known as British Standard Pipe Taper threads (BSPT )or British Standard Pipe Parallel (Straight) threads (BSPP ). While the BSPT achieves pressure tight joints by the threads alone, the BSPP requires a sealing ring.

JIS Japanese Industrial Standards

This is the Japanese industrial standards or the standards used for industrial activities in Japan for pipe, tube and fittings and published through Japanese Standards Associations.

NPT National Pipe Thread

National Pipe Thread is a U.S. standard straight (NPS) threads or for tapered (NPT) threads. This is the most popular US standard for pipe fittings. NPT fittings are based on the internal diameter (ID) of the pipe fitting.

BOLTS & NUTS

We are manufacturer of Flange bolts & Nuts and supply high quality

A193 = This specification covers alloy and stainless steel bolting material for pressure vessels, Valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications.
A320 = Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for Low-Temperature Service.
A194 = Standard specification for nuts in many different material types.

AN Here, "A" stands for Army and "N" stands for Navy

The AN standard was originally designed for the U.S. Military. Whenever, a pipe fitting is AN fittings, it means that the fittings are measured on the outside diameter of the fittings, that is, in 1/16 inch increments.

For example, an AN 4 fitting means a fitting with an external diameter of approximately 4/16″ or ¼”. It is to be noted that approximation is important because AN external diameter is not a direct fit with an equivalent NPT thread.

Dash (-) size

Dash size is the standard used to refer to the inside diameter of a hose. This indicates the size by a two digit number which represents the relative ID in sixteenths of an inch. This is also used interchangeably with AN fittings. For example, a Dash "8" fitting means an AN 8 fitting.

ISO International Organization for Standardization

ISO is the industrial pipe, tube and fittings standards and specifications from the International Organization for Standardization. ISO standards are numbered. They have format as follows:

"ISO[/IEC] [IS] nnnnn[:yyyy] Title" where

nnnnn: standard number
yyyy: year published, and
Title: describes the subject

General standard

Standard	Specification
ASTM A234	Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service
ASTM A420	Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low-Temperature Service
ASTM A234 WPB	ASTM A234 WPB refers to a specific grade of carbon steel pipe fittings, which are widely used in pressure piping and pressure vessel fabrication for service at moderate and elevated temperatures.
ASME B16.9	ASME B16.9 Standard covers overall dimensions, tolerances,ratings, testing, and markings for factory-made wrought buttwelding fittings in sizes NPS 1⁄2 through NPS 48 (DN 15 through DN 1200).
ASME B16.28	ASME B16.28 Standard covers ratings, overall dimensions, testing, tolerances, and markings for wrought carbon and alloy steel buttwelding short radius elbows and returns.
MSS SP-97	MSS SP-97 Standard Practice covers essential dimensions, finish, tolerances, testing, marking, material, and minimum strength requirements for 90 degree integrally reinforced forged branch outlet fittings of buttwelding, socket welding, and threaded types.
ASTM A403	Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings.

Wide variety for all areas of application

DIN	EN	ASME
St 35.8 I St 35.8 III 15 Mo 3 13 CrMo 4 4 10 CrMo 9 10 St 35 N St 52.0 St 52.4	P235GH-TC1 P235GH-TC2 16Mo3 13CrMo4-5 10CrMo9-10 X10CrMoVNb9-1 P215NL P265NL L360NB L360NE P355N P355NL1 P355NH	WPB WPL6 WPL3 WPHY 52 WP11 WP22 WP5 WP9 WP91 WP92