TYPE : SEAMLESS

GRADE : ASTM A335 P1 / P2 / P5 / P9 / P11 / P12 / P22 / P91
                ASTM A333 Gr.1 / Gr.3 / Gr.6 / Gr.8
               JIS STPL46, STBL39, STS38, STPL46, STBL46, STPL79, STBL70
               BS 3603/503, 3603/509
               DIN 1.5637 - 10Ni14, 1.5662 - X8Ni9

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A. SPP, SGP (low working pressure)  conveying steam, water, oil gas, air
B. STPG 370 (high pressure sevice)   approximate maximum temperature of 350c
C. A106 Gr.B                                           mainly used for piping at a temperature over 350c
D. STB 400                                            water tube, sokke tubes uperheater tube, air preheater tube, boiler, heat exchanger
                                                                  tube condenser tube, catalyser tube
E. STKM 13a, STKR 400                   automobiles, bicycles, furniture, appliances and other machine parts.

Specification and Grade