We are professional Alloy 20 Valve Seat Rings(UNS N08020, 2.4660, CARPENTER Alloy 20CB-3, ALloy 20CB3) from china
Alloy 20 steel bar ASTM B473 is a highly alloyed austenitic stainless steel developed primarily for use in the sulfuric acid related processes. Alloy 20 is used is a wide variety of applications from Sulfuric acid pickling tanks, racks and heating coil, Heat Exchangers, Process piping, Chemical and petroleum process equipment etc.
Chemical composition
Grade | % | Ni | Cr | Fe | Mo | C | Mn | Si | S | Cu | P |
Alloy20 | Min | 32 | 19 | Bal. | 2 | | | | | 3 | |
Max | 38 | 21 | 3 | 0.07 | 2 | 1 | 0.03 | 4 | 0.03 |
Mechanical properties:(Minimum value at 20°C)
Tensile Strength σb/MPa | Yield Strength σp0.2/MPa | Elongation σ5 /% |
600 | 320 | 35 |
Standard
Bar | Forging | Sheet/Strip | Wire |
ASTM B473 | ASTM B462 | ASTM B463 | ASTM B471 |