Pipe & fittings Standards

With the rapid expansion in the global trade, standardization of various products has become an essential requirement. The standards given to various products significantly contributes towards increasing international trade which in turn bridges the quality gap between the manufacturers, producers and buyers of different nations.

ASTM A213 T91
ASTM A213M-09
Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
ASTM A333 Grade 6 alloy pipe shall be made by the seamless or welding process with the addition of no filler metal in the welding operation.
ASTM A333
Standard Specification for Seamless and Welded Steel Pipe for Low-Temperature Service and Other Applications.
ASTM A335 P22 is the part of ASTM A335, the pipe shall be suitable for bending, flanging, and similar forming operations, and for fusion welding.
ASTM A335
ASTM A335/ASME SA335 standard specication for seamless ferritic alloy-steel pipe for high-temperature service
ASTM A519
ASTM A519 specification covers for several grades of carbon and alloy steel mechanical tubing, either hot-finished or cold-finished.
EN10216
This part of EN1026 specifies the technical delivery conditions in two test categories for seamless tubes for circular cross section
EN 10305-1
ASTM A335/ASME SA335 standard specication for seamless ferritic alloy-steel pipe for high-temperature service
DIN/EN steel pipe
GB steel pipes
JIS seamless pipes

Seamless pipes Execution Standard

It can also be used for structural applications; hollow pipe is far stiffer per unit weight than solid members. Seamless pipe is thought to be able to withstand higher pressure, higher temperatures, higher mechanical stress and a corrosive atmosphere. It can be found in a wide range of applications such as in oil and gas, refinery, petrochemical, chemical, fertilizer, power, automotive, bearing, mechanical and structural.

The production of our seamless pipes is tightly regulated and all of the pipes we stock have been fully tested to international standards to ensure we only supply the highest quality products.

Available Specification standaard
API Spec 5CT API Spec 5L ASTM/ASME GS/ DIN JIS

We can makes and markets cold-drawn and hot rolled seamless steel pipes and cold-drawn special-section seamless pipes which are widely applied in the industries of petrochemical, boiler, automobile, mechanical, construction.

API SPEC 5L/ 5CT

Specification for Casing and Tubing, Eighth Edition, Petroleum and natural gas industries-Steel pipes for use as casing or tubing for wells.

Product name Executive standard Dimension (mm) Steel code/ Steel grade
Casting API 5CT 114-219 x 5.2-22.2 J55, K55, N80, L80, P110
Tubing API 5CT 48.3-114.3 x 3.2-16 J55, K55, N80, L80, H40
Casting API 5L 10.3-1200 x1.0-120 A, B, X42, X46, X52, PSL1 / PSL2
ASTM / ASME

American Society for Testing and Materials(ASTM), American Society of Mechanical Engineers (ASME)

Product name Executive standard Dimension (mm) Steel code/ Steel grade
Black and Hot-dipped Zinc-coated Steel Pipes Seamless ASTM A53 0.3-1200 x 1.0-150 GR.A, GR.B, GR.C
Seamless Carbon Steel for High Temperature Service ASTM A106 10.3-1200 x 1.0-150 GR.B, GR.C
Seamless Cold-drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes ASTM A179 10.3-426 x 1.0-36 Low Carbon Steel
Seamless Carbon Steel Boiler Tubes for High Pressure ASTM A192 10.3-426 x 1.0-36 Low Carbon Steel
Seamless Cold-drawn Intermediate Alloy Steel Heat-exchanger and Condenser Tubes ASTM A199 10.3-426 x 1.0-36 T5, T22
Seamless Medium-carbon Steel Boiler and Superheater Tubes ASTM A210 10.3-426 x 1.0-36 A1, C
Seamless Ferritic and Austenitic Alloy Steel Boiler, Superheater and Heat-exchanger Tubes ASTM A213 10.3-426 x 1.0-36 T5, T5b, T9 , T11, T22 ,T91
Seamless Carbon and Alloy Steel for Mechanical Tubing ASTM A333 1/4"-42" x SCH20-XXS Grade1 Gr. 3,Gr..6, Gr.8 , Gr. 9
Seamless Cold-drawn Carbon Steel Feedwater Heater Tubes ASTM A556 10.3-426 x 1.0-36 A2, B2
For seamless ferritic alloy-steel pipe for high-temperature service ASTM A335 1/4"-42" x SCH20-XXS A/SA 335 P1, P2, P11, P12, P15, P22, P91, P92, P122
DIN/EN

Germany Safety(GS), Deutsches Institut für Normung(DIN)

Product name Executive standard Dimension (mm) Steel code/ Steel grade
Seamless Steel Tubes for Elevated Temperature DIN 17175 10-762 x 1.0-120 St35.8,St45.8, 10CrMo910, 15Mo3, 13CrMo44, STPL340, STB410, STB510, WB36
Seamless Circular Tubes of Non Alloys Steels with Special Quality Requirements. DIN 1629 13.5-762 x 1.8-120 St37.0, St44.0, St52.0
Seamless steel tubes for pressure purposes EN 10216 4.0-60.0 x 0.5-8
5-7 m manufacturing lenght
P235GH TC1, P235GH TC2, 16Mo3
hydraulic and pneumatic power system, low-voltage circuit, power steering, fuel circuit, vibration reduction, and such. EN 10305 13.5-165.1 x 1.8-4.85 St33.2
specifies the Seamless steel tubes used forMechanical and Automobile. DIN 2391 4.0-60.0 x 0.5-8 St35, St45, St52
Seamless Steel Tubes DIN 2440 13.5-165.1 x 1.8-4.85 St33.2
JIS

Japanese Industrial Standards (JIS) specifies the standards used for industrial activities in Japan.

Product name Executive standard Dimension (mm) Steel code/ Steel grade
High pressure and high temperature service JIS G3454/5/6 19.05-114.3 x 2.0-14 JIS G3454(STPG370, STPG410), JIS G3455(STS370, STS410, STS480), JIS G3456(STPT370, STPT410, STPT480)
Tubes used for machinery, automobiles, bicycles, furniture, appliances and other machine parts. JIS G3445 19.05-114.3 x 2.0-14 STKM11A, STKM12(A,B,C), STKM13(A,B,C), STKM14(A,B,C).
Carbon steel/Alloy steel boiler and heat exchanger tubes JIS G3461,2 19.05-114.3 x 2.0-14 G3461(STB340, STB410, STB510)
G3462(STBA22, STBA23)
Seamless steel tubes for high pressure gas cylinder JIS G3429 19.05-114.3 x 2.0-14
Length: max 16000mm
STH11, STH12, STH21, STH22
Heat resistant alloy steel pipes that are used for high temperature conveying fluid pipes for heaters and boiler tubes. JIS G3458 10.5-660.4 mm STPA 12, STPA 20, STPA 22, STPA 23, STPA 24, STPA 25, STPA 26
GB 国标
Product name Executive standard Dimension (mm) Steel code/ Steel grade
Used for manufacturing various low and medium pressure boilers. GB 3087 19.05-114.3 x 2.0-14 10#, 20#
Low-temperature heat exchanger tubes seamless steel pipe GB/T18984 19.05-351 x 2.0-14 06Ni3MoDG, 09DG, 09Mn2VDG, 10MnDG, 16MnDG
GB 8163 steel pipe is a seamless steel pipe for fluid transportation (GB/T8163-2018) GB/T 8163 19.05-351 x 2.0-14 10#
High pressure and above pressure steam boiler tubes with high quality carbon structural. GB5310 19.05-114.3 x 2.0-14 20G, 20MnG, 25MnG, 15MoG, 20MoG, 12CrMoG, 15CrMoG(T12/P12), 12CrMoG, 12Cr2MoWVTiB.
 


Material stainless steel grades:

Also known as "marine grade" stainless steel due to its increased ability to resist saltwater corrosion compared to type 304. SS316 is often used for building nuclear reprocessing plants.

304/304L Stainless Steel

304 Stainless is a low carbon (0.08% max) version of basic 18-8 also known as 302.

316/316L Stainless Steel

Type 316 is more resistant to atmospheric and other mild environments than Type 304.

310S Stainless Steel

310S Stainless Steel has excellent resistance to oxidation under constant temperatures to 2000°F.

317L Stainless Steel

317L is a molybdenum bearing austenitic chromium nickel steel similar to type 316, except the alloy content in 317L is somewhat higher.

321/321H Stainless Steel

Type 321 is basic type 304 modified by adding titanium in an amount at least 5 times the carbon plus nitrogen contents.

410 Stainless Steel

Type 410 is a martensitic stainless steel which is magnetic, resists corrosion in mild environents and has fairly good ductility.

Duplex 2205 (UNS S31803)

Duplex 2205 (UNS S31803), or Avesta Sheffield 2205 is a ferritic-austenitic stainless steel.

Duplex 2507 (UNS S32750)

Duplex 2507 (UNS S32750) is a super duplex stainless steel with 25% chromium, 4% molybdenum..

SUPER DUPLEX UNS S32760

UNS S32760 is described as a super duplex stainless with a microstructure of 50:50 austenite and ferrite.

SA 269

ASTM A269 / A269M Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service

SA 249 Stainless Steel

ASME SA 249 Standard Specification for Welded Austenitic Steel Boiler,
Superheater, Heat-Exchanger, and Condenser Tubes.

Dual phase steel

Dual-phase steel (DPS) is a high-strength steel that has a ferrite and martensitic microstructure.

Internal and External Anti-corrosion steel pipe Standard

Anti layer structure
Anti layer structure

Anti-corrosion steel pipe is processed through the preservation process, which can effectively prevent or slow down the process in the transport and use of chemical or electrochemical corrosion reaction of steel pipe.

2PE/3PE corrosion structure: the surface of the steel and epoxy powder electrostatic spraying adhesive side wound, lateral wound polyethylene coating, combined with the excellent performance of the three, thus significantly improving the overall quality of pipeline corrosion.

Resistant to chemical corrosion, resistance to cathodic disbondment resistance, mechanical damage to properties.

 

DOWNLOAD STANDARD

Even welding and smooth weld line, can be substitute for seamless tube after drawing and cold rolling.

ASME B16.9

This Standard covers overall dimensions, tolerances, ratings, testing, and markings for wrought factory-made buttwelding fittings in sizes NPS 1 ⁄ 2 through 48 (DN 15 through 1200).

Fittings may be made to special dimensions, sizes, shapes, and tolerances by agreement between the manufacturer and the purchaser.

ASTM A234/ SA234M

ASTM A234/ SA234M Standard specification for pipe fittings of wrought carbon steel and alloy steel for moderate and high temperature service.

These fittings are for use in pressure piping and in pressure vessel fabrication for service at moderate and elevated temperatures.

Standards for flanges & fittings

AWWA standard flange
AWWA flange standards
AWWA standards evaluate properties that particularly affect potable water use, as opposed to broader industrial flange applications.
ASNI flange
ANSI flange standards
ANSI-approved flanges are used for the industrial market which handles gas, air and steam process systems.
ASTM A420 pipe fittings
ASTM A420
ASTM A420/A420M-07 Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low-Temperature Service.
A403 WP304L Pipe Fittings
ASTM A403
ASTM A403 / A403M Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings.
ASME B16.28 Buttwelding Short Radius Elbows
ASME B16.28
ASME B16.28 wrought denotes fittings made of pipe, tubing, plate, or forgings.
MSS SP75 WPHY 42-pipe elbowss
MSS SP-97
MSS SP-97 Standard Practice covers essential dimensions, finish, tolerances, testing, marking, material


SUNNY STEEL

Our team are highly trained and experienced in servicing and producing all types of steel supplies. Whether you've got a large construction project, or need parts for industrial machinery, our team of steel fabrication consultants will ensure that your project is provided with the parts you need, when you need them.

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