Seamless Steel Pipe
Outside diameter: 13.7.3-610mm (3/8-24 inch)
Thickness: SCH 20 to SCH 140 (1.73-36.5mm)
Standard: API 5L: API 5CT, ASTM A106,
Steel Grade: A, B, X42, X46, X52, X56, X60, X65, J55, K55, 16Mn, ST37, ST52
Packing: Labeled and bundled together with steel strip
Application: Low, medium and high pressure boiler, transportation for gas, water, oil and natural gas, tubes for heat exchanger and chemical fertilizer equipments, for hydraulic pillar service etc.

We have API 5L, API 5CT certificate, the size as follows:
Product Specification
Seamless pipe OD 21.3mm---OD508mm
ERW pipe OD 140mm --- OD406mm
SSAW pipe (spiral) OD 219mm --- OD2540m