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.

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…

Size:
Outer Diameter: 10mm-610mm,
Wall Thickness: 2mm-50mm.
Length:Random Length, Fixed Length, SRL, DRL

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

Heat treatment:
Annealed: Bright annealed,Spheroidize annealed, Normalized, Stress relieved, Cold finished, Quenched and Tempered

Delivery Condition:
BKS, NBK, BK, BKW, GBK(+A), NBK(+N), BK(+C)