| Special steel of forged round bar,square bars.shaft,hollow. |
| Size from Dia.150mm to Dia.3000mm For black and Rough machined. |
| Hot Forged steel round bar |
| Steel grade: |
| Carbon steel: |
| Chinese Standard: 20#, 25#, 35#, 45#, 50#, 60#; |
| Japan Standard: S20C, S25C, S35C, S45C, S55C, S60C; |
| US Standard: AISI1020, AISI1040, AISI1045, AISI1050; |
| Europe Standard: CK15, C.22, C45, CK45, C60, CK60; C45E; |
| Alloy Steel: |
| Chinese Standad: 16Mn, 20Mn, 30Mn2, 30Mn5, 40Cr, Q345D, Q345E, Q390; 42CrMo, |
| 20CrMo, 38CrMoAl, 40CrNiMo; 48CrMo, 5CrNiMo; |
| Janpan Standard: SCM415, SCM420, SCM440 ,SNCM439, SNCM220, SACM645; |
| USA Standard: SAE4140, SAE4130, SAE9840, SAE4340, AISI4145H, SAE4150, SAE8620; |
| Europe Standard: 42CrMo4, 25CrMo4, 34CrNiMo6, 39CrNiMo3, 17NiCrMo6, 18CrNiMo7-6, |
| S355J2G3, ASTM A105, ST52-3, 16MnCr5, 20MnCr5, 16MnCrS5, 20MnCrS5, 21CrMoV511, |
| 56NiCrMoV7, 18NiCrMo5, 30CrNiMo8, 34NiCrMo16, 41CrAlNi7, 34CrAlNi7, B7, B16, F11, |
| F12, F22, F5, F9, 51Cr4; |
| Tool Steel: 1.2714, H13, H11, P20, SKD61; |
| Delivery condtion:Hot forged+Normalzied+Rough Machined+Q/T |
| Size: Dia150mm- Dia3000mm. |
| Steel ingot:EAF+LF+VD. |
| Ultra-sonic test: as per SEP 1921 Group III C/c,D/d,E/e; |
| As forged condition straightness:≤4mm/m, RT bar straightness: ≤2mm/m |
| As forged diameter tolerance: -0/+8mm; RT diameter tolerance:-0/+3 mm |
| Grain size: as per ASTM E112-96 Grade 5 or finer for normalized/annealed/QT condition |
| Non-metal inclusion: as per ASTM E45 A/B/C/D heavy ≤2, thin ≤2 |
| Quantity: 30MT or double per size |
| Mill certificate as per EN 10204/3.1.B |
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