Features:1) Specification: ?0 - 200mm2) Hot rolling craftwork, hot forging and fine mechanical performance3) Chemical components meet standards, delivery in black skin4) Standards: a) JIS: SCr440 (SCr4) b) ASTM: AISI 5140 c) French standard: 42C4 d) German standard: 41Cr4 (1.7035)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