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30CND8 30NCD8 SNCM 431 SNCM431 Forged Forging steel Rings Rolled Rings Forging Sleeves Bushes Bushing Pipes Piping tubes tubings barrels Casing Cases Shells cylinders hubs housings Parts Pieces
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We are professional 30CND8 30NCD8 SNCM 431 SNCM431 Forged Forging steel Rings Rolled Rings Forging Sleeves Bushes Bushing Pipes Piping tubes tubings barrels Casing Cases Shells cylinders hubs housings Parts Pieces Material Products from china
C | Si | Mn | Ni | P | S | Cr | Mo |
0.26 - 0.34 | max 0.4 | 0.5 - 0.8 | 1.8 - 2.2 | max 0.025 | max 0.035 | 1.8 - 2.2 | 0.3 - 0.5 |
Mechanical properties of 30CND8 30NCD8 SNCM 431 SNCM431
Nominal diameter (mm): | to 16 | 16 - 40 | 40 - 100 | 100 - 160 | 160 - 250 | 250 - 330 | 330 - 660 |
Rm - Tensile strength (MPa) (+QT) | 1250-1450 | 1250-1450 | 1000-1300 | 1000-1200 | 850-1100 | 850 | 800 |
Nominal diameter(mm): or for flat products thickness: to 8; 8-20; 20-60; 60-100; 100-160; | to 16 | 16 - 40 | 40 - 100 | 100 - 160 | 160 - 250 |
Re - Upper yield strength or Rp0.2 - 0.2% proof strength (MPa) (+QT) | 1050 | 1050 | 900 | 800 | 700 |
Nominal thickness(mm): | to 160 | 160 - 330 | 330 - 660 |
Re - Upper yield strength (MPa) (+QT) | 700 | 630 | 590 |
KV - Impact energy (J) longitud., (+QT) | +20° 30-45 |
KV - Impact energy (J) transverse, (+QT) | +20° 20-27 |
A - Min. elongation at fracture (%) transverse, (+QT) | 8-14 |
Nominal thickness (mm): | to 16 | 16 - 40 | 40 - 100 | 100 - 160 | 160 - 250 |
A - Min. elongation Lo = 5,65 √ So (%) (+QT), round products | 9 | 9 | 10 | 11 | 12 |
Nominal diameter (mm): or for flat products thickness: to 8; 8-20; 20-60; 60-100; 100-160; | to 16 | 16 - 40 | 40 - 100 | 100 - 160 | 160 - 250 |
Z - Reduction in cross section on fracture (%) (+QT) | 40 | 40 | 45 | 50 | 50 |
Brinell hardness (HBW): (+A) | 248 - 255 |
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