Similar Grade
DIN |
Material No. |
AFNOR |
SAE |
UNI |
| 20MnCr5 |
1.7147 |
20MC |
5120 |
20MnCr5 |
Quality Standard
BS EN 10084 2008 Case hardening steels
Chemical Composition(%)
C |
Mn |
Si |
P |
S |
Cr |
| 0.17-0.22 |
1.10-1.40 |
0.40 max |
0.035 max |
0.035 max |
1.00-1.30 |
Mechanical Properties( T=20°C if not differently stated )
Heat treatment state |
Diameter(mm) |
Rm (Mpa) |
| QUENCHED AND TEMPERED |
16 max |
1200 min |
| QUENCHED AND TEMPERED |
16-40 |
1000 min |
| QUENCHED AND TEMPERED |
40-100 |
800 min |
HEAT TREATMENT AND HOT PLASTIC DEFORMATION TEMPERATURES
Process |
TEMPERATURE ° C |
Cooling Medium |
| Forging or hot rolling |
850-1100 |
air |
| Normalizing |
840-870 |
air |
| Soft Annealing |
650-700 |
furnace 217HB max |
| Carburising |
880-980 |
/ |
| Core hardening |
860-900 |
oil |
| Intermediate annealing |
650-700 |
/ |
| Case hardening |
780-820 |
oil |
| Tempering |
150-200 |
/ |
Applications
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.
Fushun Special Steel LTD CO
Fushun Metal is a large special steel manufacturer and supplier. We are metal experts and have been providing quality customer service and products since 1998.
At Fushun Metal, we supply a wide range of metals for a variety of applications. Our products/stock includes: stainless steel, alloy steel, spring steel, tool steel, high speed steel, mould steel, nickel alloy.
Our hot rolled and cold rolled steel is available in a wide range of shapes including: bars, tubes, sheets and plates. We can cut metal to your exact specifications.
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