ステロイド 市販

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Cold Forging Quality Steels

Material quality requirements for cold heading steels

  • Excellent surface quality ensuring zero-defect situation so that forged components have no defects
  • Good control over ovality to ensure smooth forging process.
  • Good control over mechanical properties such as tensile strength and reduction is to ensure proper cold forgeability and productivity
  • Completely descaled surface to avoid forging defects such as scale pits and resultant surface roughness.
  • Suitable metallurgical structure to ensure proper machinability level.
  • Good and uniform response to heat treatment since the components are always treated in bulk.
Category SAE/AISI DIN IS EN
Low Carbon & Medium Carbon Grades 1008
  1010 CK-10 C10
  1012 CK-10 C10 EN2A
  1015 CK-15 EN32B
  1018 C-15Mn75 EN2C
  1020 C-20 C-2SMn75 EN3A
  1025
  1040
  1045
Carbon Manganese 1541 36Mn7 37C15 EN1S
Boron Grades 10B21 21C10BT
  15B25 26C1OBT
  15B41
Crome-Moly 4135
  4140 40CR4MO3 EN-19

Dimensional Specifications (As rolled)*

Diameter Range Ovality Permissible Tolerance
5.5-9.0 mm 0.2 mm max ± 0.15 mm
10-25 mm 0.3 mm max ± 0.20 mm
26-36 mm 0.4 mm max ± 0.30 mm

* In specific cases stricter specifications can be met.

ParticularsBlock Route (5.5 mm to 11 mm dia) Garret Route(12 mm to 36 mm dia)
Coil Weight1500 kgs max1500 kgs max
Coil Inner Diameter800 mm800 mm
Coil Outer Diameter1200 mm1500 mm
Coil Height900 mm1100 mm
BindingStrapStrap

Wire Rods Rolled Sizes :

CHEMICAL COMPOSlTIONS or TYPICAL COLD FORGING QUALITY GRADES :

CARBON STEELS

BORON STEELS

ALLOY STEELS