Standard: API 5L, API 5CT, ASTM A106/A53, ASTM A519, JIS G 3441, JIS G3444, JIS G3445 DIN 2391, EN10305, EN10210, ASME SA106, SA192, SA210, SA213, SA335, DIN17175, ASTM A179… 

Steel Grade: 

API 5L: GR B, X42, X46, X56, X60, X65, X70 

ASTM A53/A106: GR A, GR B, GR C ASME

SA106: GR.A, GR.B, GR.C 

ASME SA192: SA192 

ASME SA209M: T1, T1a 

ASME SA210: GR.A-1, GR.C 

ASME SA213: T2, T5, T9, T11, T12, T22 

ASME SA335: P2, P5, P9, P11, P12, P22, P91 

DIN17175:ST35.8, ST45.8, 15Mo3, 13CrMo44

Usage: Applicable to the general structure, mechanical structure, water wall panel, economizer, super heater, boiler and heat exchanger with seamless steel tubes, and to transport liquid, gas, oil etc.