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JIS G3454,G3455,G3456 Carbon steel pipes

JIS G3454,G3455,G3456 Carbon steel pipes for pressure, high pressure and high temperature service


JIS G3454


JIS G3454 DN80 SCH60

Carbon steel pipes for pressure service, high pressure service and high temperature service.

Standard:
  • JIS G3454 Carbon steel pipes for pressure service at an approximate maximum temperature of 350℃.
  • JIS G3455 Carbon steel pipes for high pressure service at an approximate maximum temperature of 350℃.
  • JIS G3456 Carbon steel pipes for high temperature service at a temperature over 350℃.
Size (mm):

Outer Dimensions: 19.05mm ~ 114.3mm
Wall Thickness:2.0mm ~ 14 mm
Length: max 16000mm

Application: Carbon steel pipes for pressure service, high pressure service and high temperature service.

The main products of steel / steel grade:
  • JIS G3454(STPG370, STPG410)
  • JIS G3455(STS370, STS410, STS480)
  • JIS G3456(STPT370, STPT410, STPT480)

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

Chemical Compositions(%):
Standard Grade C Si Mn P S
JIS G3454 STPG370 ≤0.25 ≤0.35 0.30-0.90 ≤0.040 ≤0.040
STPG410 ≤0.30 ≤0.35 0.30-1.00 ≤0.040 ≤0.040
JIS G3455 STS370 ≤0.25 0.10-0.35 0.30-1.10 ≤0.035 ≤0.035
STS410 ≤0.30 0.10-0.35 0.30-1.40 ≤0.035 ≤0.035
STS480 ≤0.33 0.10-0.35 0.30-1.50 ≤0.035 ≤0.035
JIS G3456 STPT370 ≤0.25 0.10-0.35 0.30-0.90 ≤0.035 ≤0.035
STPT410 ≤0.30 0.10-0.35 0.30-1.00 ≤0.035 ≤0.035
STPT480 ≤0.33 0.10-0.35 0.30-1.00 ≤0.035 ≤0.035
Mechanical Properties:
Standard Grade Yield Strength (Mpa) Tensile Strength (Mpa) Elongation (%)
JIS G3454 STPG370 ≥216 ≥370 ≥30
STPG410 ≥245 ≥410 ≥25
JIS G3455 STS370 ≥216 ≥370 ≥30
STS410 ≥245 ≥410 ≥25
STS480 ≥275 ≥480 ≥25
JIS G3456 STPT370 ≥216 ≥370 ≥30
STPT410 ≥245 ≥410 ≥25
STPT480 ≥275 ≥480 ≥25

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.




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