CARPENTER 20CB3
ALLOY 20
NiCr20CuMo
2.4660
UNS N08020
N0820
Element | Min | Max | |
---|---|---|---|
C(Carbon) | 0.07 % | ||
Cr(Chromium) | 19% | 21% | |
Cu(Copper) | 3% | 4% | |
Fe(Iron) | Balance | ||
Mn(Manganese) | 2% | ||
Mo(Molybdenum) | 2% | 3% | |
Ni(Nickel) | 32% | 38% | |
P(Phosphorus) | 0.02% | ||
S(Sulphur) | 0.005% | ||
Si(Silicon) | 1% |
Mechanical Properties | Min | Max |
---|---|---|
Ultimate Tensile Strength (UTS) | 617 MPa | |
0.2% Proof Stress | 274 MPa | |
Elongation | 50% | |
Gauge Length | A50mm | |
Hardness (Brinell) | 184 HRB |
Heat Treatment;
Annealing: heat to 941-1010 degs C. for 30 mins per 25.40 mm. of thickness, and water quench.
Hardening: can only be hardened through cold working.
Bolting
Widely used in the Chemical processing, pulp and paper, food production and waste disposal industries for its excellent corrosion resistance. Protecting against general corrosion and stress corrosion cracking.
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