1. Commodity: steel round bar , steel block , steel flat bar
2. Steel grade: alloy steel, or per customer's requests
ASTM: SAE 4340
JIS: S NCM439
3 . Steel melting: EAF + LF + VD + ESR ( optional for tool & die steel)
4 . Produce p rocess : Hot f orged
5 . Heat Treatment: Annealed / Normalized / Quenched+Tempered
6 . Surface condition: Black surface / peeled / turned
7 . size: Diameter: 100-1200mm or width 100-800mm thickness 80-800mm or thickness 10-200mm; width 260-700mm ,
8 . Length: 2 000-5800mm (for 20" container loading), or according to customer's requirement.
9 . UT test: according to SEP1921-84 G3 C/c, D/d, or finer