S45500 stainless steel is a precipitation-hardening stainless steel formulated for primary forming into wrought products. XM-16 is the ASTM designation for this material. S45500 is the UNS number. And Alloy 455 is the common industry name.
CHEMICAL COMPOSITION (wt%):
| Fe | Ni | Cu | Cr | Mo | C | Mn |
| Bal. | 7.5-9.5 | 1.5-2.5 | 11.0-12.5 | ≤0.50 | ≤0.03 | ≤0.50 |
| Si | P | S | Nb+Ta | Ti | Nb | N |
| ≤0.50 | ≤0.015 | ≤0.015 | 0.10-0.50 | 0.90-1.40 | ≤0.50 | ≤0.015 |
Mechanical properties
Mechanical properties (20°C)
sin the Limit of short-term strength 1600−1720 MPa
sT — yield stress for permanent deformation 1510 MPa
d5 — elongation at break.14%
Cold treatment
Turning, milling, grinding, drilling.
Heat treatment
Normalizing, quenching, annealing, vacation.
Analogues
Germany (DIN) X3CrNiCuTiNb12−9; USA (UNS) S45500
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