P280 GH 1.0426 EN10222-2 Carbon Steel Forgings Ring Normalized and Tempered Quenched And Tempered Proof Machined
Surface Finish:3.2um Ra Or As Required.
Forging Reduction Min:3 Or As Required
Rought machining or Finis Machining
P280 GH 1.0426 Chemical Composition:
| % | C | Si | Mn |
| Min | 0.08 | 0 | 0.90 |
| Max | 0.20 | 0.40 | 1.50 |
| % | P | S | Cekv |
| Min | 0 | 0 | 0 |
| Max | 0.025 | 0.015 | 0.45 |
Heat Treatment:Normalized,Normalized+Tempered,Quenched + Tempered
Mechanical Properties:
| Thichness mm | Condition | Upper yield strength Reh Mpa | Tensile strength Rm Mpa | Elongation after fracture A% | Impact energy KV J(0) |
| -35 | N | 280 | 460-580 | 23/21 | 48/27 |
| (35)-160 | N+T,Q+T | 255 | 460-580 | 23/21 | 48/27 |
| Thichness mm | Yield strength Mpa min | Tensile strength Mpa Min | Elongation A% min | Impact Valve KV J min |
| -35 | 215 |
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