Commodity: Hot forged round bar
Grade: SACM645
Similar grade: AISI7140, 38CrMoAl;
Diameter tolerance: -0/+3mm
Delivery condition: Hot forged+Annealed+Rough Turned.
We also supply the Quenched and Tempered condtion if needed;
Straightness: 2mm/M Max.
Forging Ratio Max 4: 1
Hardness after Annealed Max HB230
Ultrasonic Test: Sep1921-84 Class C/c.
We also supply the Ultrasonic Test: Sep1921 Class D/d, E/e;
Or according the ASTM A388 and other standards;
Chemical compistion:
C: 0.40/0.50; Si: 0.15/0.35; Mn: 0.30/0.60; Cr: 1.30/1.70;
P Max 0.030; S Max 0.030; Ni Max 0.25; Cu Max 0.30; Mo: 0.15/0.30;
Al: 0.70/1.20;
Steel ingot: EAF+LF+VD
Other Steel Grade:
Carbon Steel: S20C, S26C, S35C, S45C, S50C, S55C, S60C;
Alloy Steel: SCM440, SCM420, SCM435, SCM415, SNCM220, SNCM439, SACM 645;
Tool Steel: SKD61.
Manufacturer: Jiangsu Zhuhong Forging Co., Ltd