20MnCr5/1.7147/5120/18KHG /20MnCr1
Process: EAF+LF+VOD+Forged or Rolled+Heat Treatment(optional)
Dia 10mm - 1200mm

20MnCr5/1.7147/5120/18KHG /20MnCr1

APPLICATIONS:

Highly strssed parts, e.g., gears, crankshafts, switch components, etc. Alloyed case hardening steel for parts with a required core tensile strength of 1000 - 1300 N/mm² and good wearing resistance as boxes, piston bolts, spindles, camshafts, gears, shafts and other mechanical controlling parts.

RELATED SPECIFICATIONS: 

Germany     W.Nr. 1.7147

                     DIN 20MnCr5  

USA            SAE/AISI 5120

Russia        GOST 18KHG        

France       AFNOR 20MC5 

ISO            20MnCr1

Chemical Composition (%): 

Carbon       0.17-0.22 

Silicon        0.25 max 

Manganese    1.10-1.50 max

Phosphorus    0.035 max

Sulphur       0.010-0.035 

Chromium     1.00-1.30

Process:  EAF+LF+VOD+Forged or Rolled+Heat Treatment(optional)

SIZE RANGE: 

Round: 

Hot Rolled:  10mm-500mm 

Hot Forged:  80mm-1500mm 

Flat:

Hot rolled: Thickness: 20-130mm  Width: less than 610mm 

Hot forged: Thickness:150-600mm Width: up to 1600mm 

SURFACE FINISHES: 

Black, Peeled(K12), Cold Drawn, Turned & Polished(H10, H11), Precision Ground(H9, H8)

COLOUR CODE: BLACK END 

Test: Ultrasonic test according to SEP 1921-84 C/c

Certificate of Quality: issued in English, in addition the normal terms, production process, the mechanical property yield strength, tensile strength, elongation and hardness, forged ratio, UT test result, Grain size, heat treatment methods and the sample of is shown on the Certificate of Quality.

Marking: Heat No. will be cold stamped and Steel grade, diameter mm, length mm, and  the manufacturer LOGO and weight kg is painted