Boiler steel pipes, GB/T5310 from China for sale

Steel Grade:20,20G, 20MnG, 25MnG, 15CrMoG,12Cr2MoG,12Cr1MoVG,10Cr9Mo1VNbN

Steel Grade:15ГС,12х1мф,20ПВ,20 КВД, 20,20G,20MnG,25MnG, 15CrMoG,12Cr2MoG,12Cr1MoVG,10Cr9Mo1VNbN

Tefu Steel Tube: 
Standard: GB/T 5310
Steel Grade:20,20G,20MnG,25MnG, 15CrMoG,12Cr2MoG,12Cr1MoVG,10Cr9Mo1VNbN
Equivalent Standards: EN 10216-2, ASTM A369, BS 3059 Part I, NF A 49-213, DIN 17175, JIS G3458, JIS G3461, JIS G3462, ASTM A213, ASTM A335, EN 10216-5, JIS G3463, JIS G3459, ASTM A210, ASTM A106, ASTM A178

High-Quality Carbon Structural Steel, Alloy Structural Steel, And Stainless Heat-Resistant Steel Seamless Steel Pipe For High-Pressure And Above Steam Boiler Pipes In GB/T5310-2007 Standard. Material Mainly Is Cr-Mo Alloy And Mn Alloy, Such As 20G, 20MnG, 20MoG, 12CrMoG, Etc