| Bearing Model Data |
QILU speical steel co.,ltd

We are one of the biggest manufacturers of forged round steel in China. We have 13 big categories of steel and over 300 steel grades. We have some 25 years of experience in forged round steel manufacturing.If you have inquiry about our products,THE DIAMETER RANGES FROM 80-1200MM.

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,  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: Dia90mm- Dia1200mm.
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 ≤ 2.5
Quantity: 15MT or double per size
Mill certificate as per EN 10204/3.1. B
Delivery time: Within 60 days

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Contact Details

Contact person:Fan Fei

Country:China (Mainland)


Street address: shandong yanzhou china





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