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Carbon steel pipe for pressure pipeline,high pressure application and high temperature application Standard:JIS G3454Japanese National Standard JIS G3455 JIS G3456 Application:JIS G3454 is used as Carbon Steel Pipe for Pressure Pipeline in the condition under 350 temperature. JIS G3455 is used as Carbon Steel Pipe for the Pipeline which in the temperature less than 350 and high working pressure. JIS G3456 is used as Carbon Steel Pipeline in the condition that over 350. Main steel tube grade:STPG370,STS370,STPT370 Chemical composition & 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 The above is our products' information ,other standard can also be provided after consulting with each other .. Looking forward to your response at yourneeds . best regards Elaine Han tel:86-15131743617 fax:86-317-7880644