Product classification
JIS G3455 Japanese standard seamless pipe
JIS G3454, JIS G3455, JIS G3456 Japanese standards (carbon steel pipes for pressure pipelines, high-pressure pipelines, and high-temperature pipelines)
- 产品描述
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JIS G3454, JIS G3455, JIS G3456 Japanese standards (carbon steel pipes for pressure pipelines, high-pressure pipelines, and high-temperature pipelines)
JIS G3454, JIS G3455, JIS G3456 Japanese standards (carbon steel pipes for pressure pipelines, high-pressure pipelines, and high-temperature pipelines)
Standard:
JIS G3454- Japanese National Standard
JIS G3455- Japanese National Standard
JIS G3456- Japanese National StandardUsage:
JIS G3454 is suitable for carbon steel pipes used in pressure pipelines below 350 ℃;
JIS G3455 is suitable for carbon steel pipes with high working pressure used below 350 ℃;
JIS G3456 is suitable for carbon steel pipes used in pipelines above 350 ℃.Main steel pipe grades produced:
STPG370, STS370, STPT370Chemical composition and mechanical properties
Grade Chemical Composition(%) Mechanical Properties C Si Mn P S Tensile Strength（Mpa） Yield Strength(Mpa) Elongation（%） STPG 370 ≤0.25 ≤0.35 0.30～0.90 ≤0.040 ≤0.040 ≥370 ≥215 30 STS 370 ≤0.25 0.10～0.35 0.30～1.10 ≤0.035 ≤0.035 ≥370 ≥215 30 STPT 370 ≤0.25 0.10～0.35 0.30～0.90 ≤0.035 ≤0.035 ≥370 ≥215 30 Remarks
HR：hot rolled CW：cold worked SR：stress relieve A：annealed N：normalized HF：hot rolling
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