1.4533
Stainless Steel1.4533
Mo-bearing 15-7PH, higher strength variant. (EN 10088; equiv ASTM 632 / AMS 5520 / JIS SUS632 / GB 07Cr15Ni7Mo2Al). Nominal values—confirm mill certificate.
Chemical Composition (%)
| C | 0.09 |
|---|---|
| CR | 14 |
| NI | 6.5 |
| MO | 2 |
| AL | 0.75 |
Mechanical Properties
Tensile (RH1050):≥1380 MPa;Yield:≥1275 MPa
Chinese Standard
EN 10088 1.4533
Equivalent Standards
ASTM 632 / AMS 5520
Equivalent Grades
JIS SUS632 / GB 07Cr15Ni7Mo2Al
Applications
含钼15-7PH，更高强度。,"Sheet
Available Forms
Strip"
Uses
Austenitic stainless steel with excellent corrosion resistance, formability and weldability; non-magnetic in annealed condition. High nickel (≈7.125%) stabilises the austenite and improves toughness and pitting resistance. Molybdenum (≈2.5%) enhances resistance to chloride pitting and crevice corrosion — suited to marine and chemical service. Used in food processing, chemical plant, architecture, heat exchangers, kitchenware and medical devices.
Heat Treatment
Solution anneal 1010–1150 °C followed by rapid water quench to retain austenite; not hardenable by heat treatment. Sensitization avoided by low carbon or stabilizers (Ti/Nb).
Precautions
Weld with low-carbon or stabilized filler (e.g., 316L, 347) to avoid sensitization; passivate after fabrication. Not hardenable, but work-hardens rapidly — use sharp tools and rigid setups. Avoid chloride contact for 304 in warm service; specify 316/317 for marine or aggressive media.
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