Product Details
20MnCr5/1.7147/1.7149/20MC/5120/20MnCr5 Hot Rolled Steel Bar , High
Strength Alloy Roun Bar
1.Specification:
Dia:10-350mm
Length:as your request.
2.All Grades Comparison:
DIN 17210 | Material No. | AFNOR | SAE | UNI 7846 |
---|
20MnCr5 | 1.7147/1.7149 | 20MC | 5120 | 20MnC |
3.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 |
4.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 |
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HEAT TREATMENT AND HOT PLASTIC DEFORMATION TEMPERATURES
- | 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 | / |
Company Profile
We, Shanghai Unite Steel are committed to integrate engineering
steel resources in china and serve the global engineering steel
market. Our company has more than 15 years of experience in steel
researching, production, managing and sales. And our team mostly
are based on and worked in national famous steel enterprise.
In the aspect of resources and information, we have established
cooperative and stronger relationship with nearly hundred
enterprises, either state-owned or private owned in china, such as:
DAYE Special Steel-a famous steel enterprise with the longest
steelmaking history; BAO Steel, and Dongbei Special Steel Group-the
biggest special steel manufacturer; TPCO, VALIN-largest seamless
steel tube production enterprise; What's more, we have built long,
deep and close business relationship with dozens of steel
companies, Sharing and holding equities with several steel
enterprises. Because of the close cooperation with steel companies
and our pioneering spirit, which can ensure us stay at the top
competition, and ensure our customers get what they really want!