Product Description:1 Production technology: cold drawn, hot-rolled, hot expanding2 Standard: ASME B36, 10, ASTM A106/A53, API 5L, API 5CT, EN10210/10219, GB/T3087/8163/8162/53103 Specification range:OD: 1/2''-24''WT: SCH10-SCHXXS4 Materials: 10#, 20#, 45#, 16Mn, GRB, Q345B, X42-56, ST44, ST52 etc.5 Testing: Eddy current, Hydrostatic, Ultrasonic, Intergranular corrosion etc.6 Packing: in bundles with steel strips, seaworthy packing as per customer's requirements7 Application: ASTM A106/53 GRB seamless steel pipe is widely used in petroleum, power gneration, natural gas, coal gas, water and some solid materials etc.