Size Range: OD 6mm-114mm    WT 0.6mm-8mm    L  15000mm  max
Standard: ASME/ASTM SB/B338、ASTM B337、 ASTM B 861
Available Grade and Chemical Composition(%)

Gr.1	σb≥240MP a	170MP a≤σ0.2≤310 MP a	δ≥24%
Gr.2	σb≥345Mp a	275MP a≤σ0.2≤450 MP a	δ≥20%
Gr.3	σb≥450Mpa	380MP a≤σ0.2≤550 MP a	δ≥18%
Gr.7	σb≥345Mp a	275MP a≤σ0.2≤450 MP a	δ≥20%
Gr.9A	σb≥620MP a	485MP a≤σ0.2	δ≥15%
Gr.9B	σb≥860Mp a	725MP a≤σ0.2	δ≥10%
Gr.12	σb≥483MP a	345MP a≤σ0.2	δ≥18%