Threeway Steel Co., Ltd

Standard:API 5L, API 5CT, ASTM 53, EN10217, DIN 2458. IS 3589, JIS G3452, BS1387 Certificate:API 5L PSL1/ PSL2, API 5CT Out Diameter:21.3mm - 610mm

Usage: general structure, mechanical structure, water wall panel, economizer, super heater, boiler and heat exchanger with seamless steel tubes, and t

Standard:ASTM A213, ASTM A312, ASTM A269, ASTM A778, ASTM A790, DIN 17456, DIN 17458, GB/T14976, GB/T13296, JIS G3459, JIS G3463, EN 10216-5; GOST 994

Steel grade:Q195, Q215, Q235, Q345, S235JR, S275JR, STK400, STK500 Standard:GB/T 3091, BS1387, EN39, EN1139, ASTM A53, JIS G344 Out Diameter:21.3 -

Longitudinal Submerged-Arc Welded Steel Pipe Process:LSAW - UO(UOE) RB(RBE) JCO(JCOE, COE) Usage:Used for low pressure liquid delivery,

Standard:BS 1139, BS1387-1985, EN 39, EN10219, JIS G 3444 Certificate:EN10217, EN10219, API 5L PSL1/ PSL2, API 5CT

Process:Spiral Submerged- Arc Welded Steel Pipe Usage:Used for low pressure liquid delivery, such as water, gas, and oil; construction and piling

OD:6-720MM WT:0.5-120MM Length:3-16M Standard:ASTM A335/A335M, ASTM A213/213M, DIN17175-79, JIS3467-88, GB5310-95