JIS G3458 Alloy Steel Pipes

pipe fittings materials data

you may also check non standard sizes pipe fitting weight online calculation, pipe fitting surface area online calculation,pipe fitting surface volume online calculation from our pipeline tool link:


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

JIS G3458 standard is made for heat resistant alloy steel pipes that are used for high temperature conveying fluid pipes for heaters and boiler tubes.

Chemical Compositions(%) of JIS G3458

STPA 120.10~0.200.10~0.500.30~0.800.035 max.0.035 max.-0.45~0.65
STPA 200.10~0.200.10~0.500.30~0.600.035 max.0.035 max.0.50~0.800.45~0.65
STPA 220.15max.0.50 max.0.30~0.600.035 max.0.035 max.0.80~1.250.45~0.65
STPA 230.15max.0.50~1.000.30~0.600.030 max.0.030 max.1.00~1.500.45~0.65
STPA 240.15max.0.50 max.0.30~0.600.030 max.0.030 max.1.90~2.600.87~1.13
STPA 250.15max.0.50 max.0.30~0.600.030 max.0.030 max.4.00~6.000.45~0.65
STPA 260.15max.0.25~1.000.30~0.600.030 max.0.030 max.8.00~10.000.90~1.10

Mechanical properties

GradeTensile strengthYield point or proof stressElongation %
kgf/mm2 {N/mm2}kgf/mm2 {N/mm2}No. 11 or No.12 test pieceNo. 5 test pieceNo.4 test piece
STPA 1239{382}min.21{206} min.30 min.25 min.24 min.19 min.
STPA 2042{412}min.21{206} min.30 min.25 min.24 min.19 min.
STPA 2242{412}min.21{206} min.30 min.25 min.24 min.19 min.
STPA 2342{412}min.21{206} min.30 min.25 min.24 min.19 min.
STPA 2442{412}min.21{206} min.30 min.25 min.24 min.19 min.
STPA 2542{412}min.21{206} min.30 min.25 min.24 min.19 min.
STPA 2642{412}min.21{206} min.30 min.25 min.24 min.19 min.

JIS G3458 Grade STPA 22 Specification

JIS G3458 Grade STPA 22 Tubes are low-cost Low Carbon Steel Tubes with max 015 % carbon content with combination of 030-060 % manganese easy to form and shape .

These pipes are manufactured as per JIS Specification and commercially referred as cs pipes or ms pipes.

Low Carbon Steel Pipes are not as hard as hig carbon steel pipes,Though carburizing can increase its surface hardness.

The tubes shall be manufactured by seamless process, electric resistance welding process, or butt welding process, and those of other grades shall be manufactured by seamless process or electric resistance welding process. The tube shall be as manufactured or as cold-finished condition, or they shall be subjected to appropriate heat treatment.

The tubes shall be practically straight. and the two ends shall be at right angles to the axis of the tube. The tubes shall be free from defects detrimental to practical use.

Packing: Bare/bundles/crates/crate protection at the both sides of tubes or as per customers’ requirements.

Painting: as requested.

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