We offer inspection services for steel pipes and pipe prefabrication. 

The products cover high-pressure boiler tubes, oil/gas transmission pipes, 

drill pipes, casing pipes and oil pipes. 

The standards adopted include API, ASME, ASTM, EN, JIS, DIN and ISO.

The inspected common steel pipe grades contain:

1. API 

• API 1104

• API 5L Grade A, B

• API 5L X42, X46, X52, X56, X60, X65, X70, X80

• API 5CT J55, K55, N80, L80, C90, T95, P110, Q125

• API 5D Drill Pipe Grade E75, X95, G105, S135

2. ASME / ASTM 

• ASME B31.1, B31.3

• ASME/ASTM A106 Grade A, B, C

• ASME/ASTM A210 Grade A-1, C

• ASME/ASTM A335 Grade P1, P5, P9, P12, P22, P91, P92

• ASME/ASTM A213 Grade T5, T9, T12, T22, T91, T347H/HFG

3. EN

• EN 10216-2: P195GH, P235GH, P265GH, 16Mo3, 13CrMo4-5, 10CrMo9-10, X10CrMoVNb9-1

• 

• 

•