Materials: carbon and alloy steel
Diameter: ≤2,500mm
Length: ≤20,000mm
Process: forging-normalizing, tempering-proof machining-quenching and tempering-precision machining
Surface finis: zinc, chemical conversion and anodic coating
QA documents: chemical composition, mechanical properties, heat treatment, dimensions check and UT report
Standards: GB, GBT, JIS, AISI, SAE, ASTM/ASME, EN, GOST and DIN
Packing: standard export