Features:1) Specification: φ50 - 200mm2) Hot rolling craftwork, hot forging and fine mechanical performance3) Chemical components meet standards, delivery in black skin4) Standards: a) JIS: SCM430 (SCM2) b) ASTM: AISI 4130 c) French standard: 30CD4 d) German standard: 30CrMo4 (1.7220)5) Used for manufacturing structural tubes, fluid tubes and medium and low pressure boiler tubes Packing: Packed with iron wires producing area:China payment:L/C, T/T supplying capacity:500,000MT/year