JIS G3460 Steel pipes for low temperature service

pipe fittings materials data

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For the pipe fitting material, please check butt-weld-fitting-standard-data

JIS G3460 Steel pipes used for piping at extremely low temperatures of freezing point or under

JIS G3460 Steel pipes Manufacturing method

The manufacturing method shall be as follows.

The pipes shall be manufactured from fine-grained killed steels. Pipes of STPL380 shall be seamless or electric resistance welded, and those of STPL450 and STPL690 shall be seamless.

JIS G3460 Steel pipes dimensional and tolerances

Outside diameter: 10.5-660.4mm

wall thickness: sch 10-160

dimensional and tolerances: +/-1% OD ; +/- 1.6mm WT

JIS G3460 Steel pipes Chemical composition

Symbol of gradeCSiMnPSNi
STPL3800.25 max.0.35 max.1.35 max.0.035 max.0.035 max./
STPL4500.18 max.0.10 to 0.350.30 to 0.600.030 max.0.030 max.3.20 to 3.80
STPL6900.13 max.0.10 to 0.350.90 max.0.030 max.0.030 max.8.50 to 9.50

JIS G3460 Steel pipes Mechanical properties

Symbol of gradeTensile strength


Yield point or

proof stress N/mm2

Elongation %
Tensile test piece and tensile test direction
Test piece No.

11 or No. 12

Test piece

No. 5

Test piece No. 4
Parallel to pipe axisPerpendicular to pipe axisParallel to pipe axisPerpendicular to pipe axis
STPL380380 min.205 min.35 min.25 min.30 min.22 min.
STPL450450 min.245 min.30 min.20 min.24 min.16 min.
STPL690690 min.520 min.21 min.15 min.16 min.10 min.

JIS G3460 Steel pipes Heat treatment

STPL380/STPL450 Normalizing, normalizing followed by tem pering, or quenching followed by tempering

STPL690 Normalizing twice followed by tempering, or quenching followed by tempering

JIS G3460 Steel pipes Appearance

Appearance shall be as follows.

  1. a) The pipes shall be straight, and the both ends shall be perpendicular to the pipe axis for practical purposes.
  2. b) Both the internal and external surfaces of pipes shall be smoothly finished and free from defects detrimental to use.
  3. c) Pipes may be repaired by grinding or machining, provided that the wall thickness of the product after repairing satisfies the specified tolerances. Repair by weldingis not permitted.
  4. d) The surface of the repaired part shall be smooth along the contour of the pipe.
  5. e) The external surface of the part where a weld bead was removed shall be smooth along the contour of the pipe.

JIS G3460 Steel pipes Tests and Inspection

Chemical analysis

Mechanical tests

Tensile test

Flattening test

Bend test

Charpy impact test

Hydrostatic test

Non-destructive test

C&N Huitong group can produce pipe fittings of such materials :

ASTM Standard MaterialASTM A53 A53M Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless
ASTM A106 A106M Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service
API 5L Specification for Line Pipe
ASTM A213 2018 Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
ASTM A312 A312M Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
ASTM A234 A234M Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service
ASTM A403 A403M Standard 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
ASTM A860 A860M Standard Specification for Wrought High-Strength Low-Alloy Steel Butt-Welding Fittings
ASTM A733 Standard Specification for Welded and Seamless Carbon Steel and Austenitic Stainless Steel Pipe Nipples
DIN Standard MaterialDIN1629 Seamless Circular Unalloyed Steel Tubes Subject to special requirements
DIN 2440 Medium-weight threaded steel tubes
DIN 2441 Steel Tubes Heavy Weight For Suitable For Screwing
GOST Standard MaterialGOST-1050 Sized Bars Made of High-Quality Structural Carbon Steel With a Special Surface Finish
GOST 8732 Seamless hot-deformed steel pipes-Range of sizes
GOST 19281 Rolled Steel With Enhanced Strength
JIS Standard MaterialJIS G3452 Carbon steel pipes for ordinary piping
JIS G3454 Carbon steel pipes for pressure service
JIS G3455 Carbon steel pipes for high pressure service
JIS G3456 Carbon steel pipes for high temperature service
JIS G3457 Arc welded carbon steel pipes
JIS G3458 Alloy Steel Pipes
JIS G3459 Stainless steel pipes
JIS G3460 Steel pipes for low temperature service
BS EN Standard MaterialBS EN 10255 Non-alloy steel tubes suitable for welding and threading Technical delivery conditions
BS EN 10253-1 Butt-Welding Pipe Fittings  Part 1: Wrought Carbon Steel for General Use and Without Specific Inspection Requirements
BS EN 10253-2 Butt-welding pipe fittings. part 2: Non alloy ferritic alloy steels with specific inspection requirements
BS EN10253-3 Butt-welding pipe fittings Part 3: Wrought austenitic and austenitic-ferritic (duplex) stainless steels without specific inspection requirements
BS EN 10253-4 Butt-welding pipe fittings Part 4:Wrought austenitic and austenitic-ferritic (duplex)stainless steels with specific inspection requirements