Diameter: 219mm-2420mm

Wall thickness: 6mm-22mm

Length: 6m -12.5m

Steel Grade: Q235B-Q345B SS400 A B L245-L555(X42-X80) Standard: 1. GB/T9711.1-1997 Grade A part 1: Delivery condition for industrial steel pipe of petroleum and natural gas transportation. 2. GB/T9711.2-1999 Grade B part 2: Delivery condition for industrial steel pipe of petroleum and natural gas transportation. 3. SY/T5037-2000 SSAW steel pipe for common fluid transportation SY/T5040-92 SSAW steel pipe for pile. 4. CJ/T3022-93 SSAW steel pipe for city heat supply. 5. API SPEC 5L Edition 43 specification for line pipe. Surface anti-corrosion: Anti-corrosion coat for both sides available upon request; Cement, asphaltum, expoxy resin, FBE, Two-layer/three PE/PP.