ASTM A519 Steel Pipe

ASTM A519 Steel Pipe

ASTM A519 carbon and alloy steel mechanical tubing used in the mechanical tubing may be cast in ingots or may be strand cast.

It is a seamless carbon and alloy steel mechanical tube used in a wide range of industrial applications where mechanical properties and durability are crucial. This remarkable pipe standard, defined by the American Society for Testing and Materials (ASTM), ensures that industries across the board can access high-quality, reliable tubing.

The steel used in the mechanical tubing may be cast in ingots or may be strand cast. When steel of different grades is sequentially strand cast, identification of the resultant transition material is required. The seamless tubing is a tubular product made without a welded seam. It is usually manufactured by hot working steel, and if necessary, by subsequently cold finishing the hot-worked tubular product to produce the desired shape, dimensions and properties.

The tubes shall be furnished in the following shapes: round, square, rectangular and special sections. Heat analysis shall be made to determine the percentages of the elements specified. If secondary melting processes are used, the heat analysis shall be obtained from one remelted ingot or the product of one remelted ingot of each primary melt. The tubing shall be coated with a film of oil before shaping to retard rust when specified This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

The ASTM A519 steel pipe, often referred to as mechanical tubing, stands as a testament to engineering excellence.

Size range(mm)

Quality and Testing:

ASTM A519 steel pipes are subjected to rigorous quality control measures, ensuring that they meet the specified mechanical and dimensional requirements. Various tests, including hardness, tensile, and impact tests, are conducted to guarantee their reliability.

What is ASTM A519?

ASTM A519 covers several grades of carbon and alloy steel seamless mechanical tubing. The standard is also acceptable in the manufacture of piping. It is manufactured by hot working and then cold finishing the steel into round, square, rectangle or special shapes.

Scope

ASTM A519 specification covers several frades of carbon and alloy steel seamless mechanical tubing.

1.1 The frades anr listed in Tables 1, 2, and 3. When welding is used for joining the weldable mechanical tube grades, the welding procedure shall be suitable for the frade, the condition of the components, and the intended service.

1.2 This specification covers both seamless hot-finished emchanical tubing and seamless cold-finished mechanical tubing in sizes up to and including 12 3/4 in.(322.8mm) outside diameter of rround tubes with wall thicknesses as required.

1.3 The tubes shall be furnished in the following shapes, as specified by the purchaser:round, square, rectagular, and special sections.

1.4 Supplementary requirements of an optional nature are provided and when desired shall be so stated in the order.

Reference documents

Related ASTM A519 Steel Pipe

Features Specifications

OD(mm) Wall Thickness Unit(mm)
　 2 2.5 3 3.5 4 4.5 5 6 6.5-7 7.5-8 8.5-9 9.5-10 11 12
Φ25-Φ28 ● ● ● ● ● ● 　 　 　 　 　 　 　 　
Φ32 　 ● ● ● ● ● ● 　 　 　 　 　 　 　
Φ34-Φ36 　 ● ● ● ● ● ● 　 　 　 　 　 　 　
Φ38 　 ● ● ● ● ● ● 　 　 　 　 　 　 　
Φ40 　 　 ● ● ● ● ● 　 　 　 　 　 　 　
Φ42 　 　 ● ● ● ● ● 　 　 　 　 　 　 　
Φ45 　 　 ● ● ● ● ● ● 　 　 　 　 　 　
Φ48-Φ60 　 　 ● ● ● ● ● ● ● 　 　 　 　 　
Φ63.5 　 　 　 ● ● ● ● ● ● ● 　 　 　 　
Φ68-Φ73 　 　 　 　 ● ● ● ● ● ● 　 　 　 　
Φ76 　 　 　 　 ● ● ● ● ● ● ● ● ● ●
Φ80 　 　 　 　 ● ● ● ● ● ● ● ● ● ●
Φ83 　 　 　 　 ● ● ● ● ● ● ● ● ● ●
Φ89 　 　 　 　 ● ● ● ● ● ● ● ● ● ●
Φ95 　 　 　 　 ● ● ● ● ● ● ● ● ● ●
Φ102 　 　 　 　 ● ● ● ● ● ● ● ● ● ●
Φ108 　 　 　 　 ● ● ● ● ● ● ● ● ● ●
Φ114 　 　 　 　 　 ● ● ● ● ● ● ● ● ●
Φ121 　 　 　 　 　 ● ● ● ● ● ● ● ● ●
Φ127 　 　 　 　 　 ● ● ● ● ● ● ● ● ●
Φ133 　 　 　 　 　 ● ● ● ● ● ● ● ● ●
Φ140 　 　 　 　 　 　 ● ● ● ● ● ● ● ●
Φ146 　 　 　 　 　 　 ● ● ● ● ● ● ● ●
Φ152 　 　 　 　 　 　 ● ● ● ● ● ● ● ●
Φ159 　 　 　 　 　 　 ● ● ● ● ● ● ● ●
Φ168 　 　 　 　 　 　 ● ● ● ● ● ● ● ●

Note:

Chemical composition (%) of ASTM A519

Grade C Mn P≤ S≤ Si Cr Mo
1008 ≤0.10 0.30-0.50 0.040 0.050 - - -
1010 0.08-0.13 0.30-0.60 0.040 0.050 - - -
1018 0.15-0.20 0.60-0.90 0.040 0.050 - - -
1020 0.18-0.23 0.30-0.60 0.040 0.050 - - -
1025 0.22-0.28 0.30-0.60 0.040 0.050 - - -
1026 0.22-0.28 0.60-0.90 0.040 0.050 - - -
4130 0.28-0.33 0.40-0.60 0.040 0.050 0.15-0.35 0.80-1.10 0.15-0.25
4140 0.38-0.43 0.75-1.00 0.040 0.050 0.15-0.35 0.80-1.10 0.15-0.25

Mechanical Properties of ASTM A519

Grade Condition MPa Tenslle Point Yield Point Elongation
1020 CW

≥414

 ≥483
 ≥5%
SR ≥345 ≥448 ≥10%
A ≥193 ≥331 ≥30%
N ≥234 ≥379 ≥22%
1025 CW ≥448 ≥517 ≥5%
SR ≥379 ≥483 ≥8%
A ≥207 ≥365 ≥25%
N ≥248 ≥379 ≥22%
4130 SR ≥586 ≥724 ≥10%
A ≥379 ≥517 ≥30%
N ≥414 ≥621 ≥20%
4140 SR ≥689 ≥855 ≥10%
A ≥414 ≥552 ≥25%
N ≥621 ≥855 ≥20%

What is the strength of ASTM A519?

ASTM A519 Grade 1026 Seamless Tubes Designation 4130 Tensile/ Mechanical Properties: Hot Rolled Ultimate Strength 90 ksi, 621 Mpa, Yield Strength 70 ksi, 483 Mpa and hardness 89. Stress Relieved Ultimate Strength 105 ksi, 724 Mpa, Yield Strength 85 ksi, 586 Mpa and hardness 95.

ASTM A519 seamless carbon steel precision mechanical tubing

ASTM A519 seamless carbon steel precision mechanical tubing finds applications in various industries, including automotive, machinery, construction, and transportation. It is commonly used for the production of components such as bushings, bearings, cylinders, and shafts.

ASTM A519 seamless carbon steel precision mechanical tubing
ASTM A519 seamless carbon steel precision mechanical tubing
ASTM A519 seamless carbon steel precision mechanical tubing
ASTM A519 seamless carbon steel precision mechanical tubing
ASTM A519 seamless carbon steel precision mechanical tubing
ASTM A519 seamless carbon steel precision mechanical tubing

Mechanical Properties of ASTM A519

JIS ASTM BS DIN NF ISO Index Number
Standard Number Grade Tupe Standard Number Grade Tupe Standard Number Grade Tupe Standard Number Grade Tupe Standard Number Grade Tupe Standard Number Grade Tupe
G3445 STKM11A C A512 MT1010 C 1717 ERWC1 C 2391 St30Si C 3304 R28 C C017
A513 MT1010 C St30A1 C 3305 " C
2393 St28 C 3306 " C
RSt28 C
2394 St28 C
USt28 C
RSt28 C
STKM12A C A512 MT1015 C 1717 ERWC2 C 2391 St37-2 3304 R33 C
A513 MT1015 C 6323 HFS3 C RSt37-2 3305 " "
STKM12B C A512 MT1015 C 2394 St37-2 3306 " "
A513 MT1015 C Ust38-2
A519 MT1015 C RSt-2
STKM12C C 1717 CEWC2 C A49-322 TU37b C
" CFSC3 C A49-327 TU37b C
6323 CFS3 C
" CFS3A C
STKM13A C A312 MT1020 C 1717 ERWC3 C 2391 St45 C A49-324 TU37b C 2937 TS4 C
A513 MT1020 C 2393 St44-2 C A49-330 TU37b C 3304 R37 "
2394 St44-2 C A49-343 TU38b C 3305 " "
STKM13B C A513 MT1020 C 3306 " "
STKM13C C 1717 CEWC3 C
" CFSC4 C
6323 CFS4 C
STKM14A C A513 MT1020 C 6323 HFS4 C 2937 TS9 C
3304 R42 "
STKM14B C 6323 HFS5 C 3305 R42 C
STMK14C C 3306 " "
STKM15A C A513 1030 C
A519 1030 C
STKM15C
STKM16A C A519 1040 C A49-311 TUXC35 C
A49-312 TUXC35 C
STKM16C C
STKM17A C A519 1050 C 6323 HFS8 C
STKM17C C 6323 CFS8 C
STKM18A C A519 1518 C 1717 ERWC5 C A49-310 TU52b C
A49-311 TU52b C
A49-312 TU52b C
STKM18B C A49-321 TU52b C
A49-323 TU52b C
A49-326 TU52b C
STKM18C C A49-330 TU52b C
A49-341 TS42a C
" TS47a C
A49-343 TS18M5 C
STKM19A C A519 1524 C 2391 ST52 C 2937 TS18 C
2393 ST52-3 C 2938 Gr.1 C
2394 ST52-3 C 3304 R50 C
3305 R50 C
3306 R50 C
STKM20A C
G3441 SCr420TK Cr C018
SCM415TK CrMo
SCM418TK CrMo 6323 CFS10 CrMo
SCM420TK CrMo A519 5120 CrMo
SCM430TK CrMo A519 4130 CrMo
SCM435TK CrMo A519 4135 CrMo
SCM440TK CrMo A519 4140 CrMo 6323 CFS10 CrMo
Cutting steel tube

Seamless Tube Processing

With years of expertise, we provide a wide range of steel tube processing services. From basic sawing and machining to complex bending and upsetting operations, we support you at every stage of your project.

Our capabilities include eccentricity reduction and concentricity improvement through turning and grinding. We specialize in creating complex geometries using rotary swaging and axial forming, and offer property modifications through partial heat treatment to meet your exact requirements.

Our Processing Capabilities

Variable wall thicknesses
Drilling / Stamping / Lasering
Peeling / Roller Burnishing
Cold Forming
Cutting
Beveling
Deburring
Thread Rolling / Threading
Partial Hardening
Turning / Milling / Grinding
Reducing / Expanding
Swing
Alloy Steel Pipe Applications

Applications of Alloy Steel Pipes

Alloy steel pipes are widely used in high-temperature, high-pressure and corrosive service environments where conventional carbon steel pipes cannot provide sufficient mechanical strength or long-term reliability.

Manufactured from premium alloy steels containing chromium, molybdenum, nickel and other alloying elements, these pipes provide excellent resistance to heat, pressure, oxidation and corrosion, making them ideal for demanding industrial processes.

Typical Applications

  • Power generation plants
  • Boilers and superheaters
  • Steam piping systems
  • Heat exchangers
  • Petrochemical facilities
  • Oil & gas processing
  • Chemical plants
  • Refineries
  • Fertilizer production
  • Nuclear power stations

Why Choose Alloy Steel Pipes?

Alloy steel pipes offer superior performance under severe operating conditions. Their enhanced mechanical properties provide excellent resistance to elevated temperatures, internal pressure, corrosion and long-term creep deformation.

  • Excellent high-temperature strength
  • Outstanding pressure resistance
  • Superior corrosion resistance
  • Improved oxidation resistance
  • Long service life
  • Reduced maintenance costs
  • Good weldability
  • 100% recyclable material

Typical Service Conditions

Alloy steel pipes are selected for critical applications where operating temperatures, pressures or corrosive media exceed the capabilities of carbon steel.

Service Condition Typical Application
High Temperature Boilers, superheaters, steam headers
Low Temperature Cryogenic processing systems
High Pressure Power generation and process piping
Corrosive Media Chemical and petrochemical plants
Long-Term Creep Service Thermal power stations

Available Standards

Product Type Common Standards
Seamless Pipes ASTM A335 P1, P5, P9, P11, P22, P91
Butt Weld Fittings ASTM A234 WP1, WP5, WP9, WP11, WP22, WP91
Forged Fittings & Flanges ASTM A182 F1, F5, F9, F11, F22, F91

Industries We Serve

Sunny Steel supplies alloy steel piping products to customers worldwide across a wide range of industrial sectors. Our products are manufactured to international standards and are trusted in critical piping systems requiring long-term reliability.

  • Oil & Gas
  • Petrochemical
  • Power Generation
  • Chemical Processing
  • Mining
  • Marine Engineering
  • Refineries
  • Fertilizer Plants
  • Heavy Industry

Inspection

Chemical composition inspection, mechanical properties test(tensile strength,yield strength, elongation, flaring, flattening, bending, hardness, impact test), surface and dimension test, non-destructive test, hydrostatic test.

PMI

Identification of the chemical composition of the metal used to manufacture the fitting. Uses PMI sensors, including X-ray fluorescence or optical emission spectrometry.


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