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1.4542 stainless steel
Material standard:
W.Nr.1.4542
DIN EN X5CrNiCuNb16-4
AISI 630 (17-4PH); ASTM F-899
W.Nr.1.4542
DIN EN X5CrNiCuNb16-4
AISI 630 (17-4PH); ASTM F-899
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Product Introduction
Products Description
17-4PH / 630 / 1.4542 is a martensitic precipitation hardening stainless steel with high strength, high hardness, good weldability and corrosion resistance. 1.4542 stainless steel bar has been widely used in valves, shafts and chemical fiber industries and high-strength parts with certain corrosion resistance requirements. Precipitation hardening steel with added copper. It is used to manufacture parts with high corrosion resistance and high strength, such as bearings and steam turbine parts.
Mechanical properties
| Temperature/℃ | Tensile Strength σb /MPa | Yield Strength σ0.2/MPa | Elongation δ5 /% | Area shrinkage ψ /% | Hardness/HB |
| Aging at 480 | ≥1310 | ≥1180 | ≥10 | ≥40 | ≥375 |
| Aging at 550 | ≥1060 | ≥1000 | ≥12 | ≥45 | ≥331 |
| Aging at 580 | ≥1000 | ≥865 | ≥13 | ≥45 | ≥302 |
| Aging at 620 | ≥930 | ≥725 | ≥16 | ≥50 | ≥277 |
1.4542 stainless steel equivalent grade
| Material No. | EN Designation | UNS | AISI | JIS | AFNOR |
| 1.4542 | X5CrNiCuNb16-4 | S17400 | 630 | SUS630 | Z7CUN17-04 |
1.4542 Chemical Compositions
| Element | Content (%) |
| Chromium, Cr | 15-17.5 |
| Nickel, Ni | 3.0-5.0 |
| Copper, Cu | 1.5-2.5 |
| Molybdenum, Mo | 0.50 max |
| Manganese, Mn | 1.00 max |
| Silicon, Si | 1.00 max |
| Nb +Ta | 0.11-0.45 |
| Carbon, C | 0.07 max |
| Phosphorus, P | 0.040 max |
| Sulfur, S | 0.030 max |
| Iron, Fe | Balance |
The physical properties of 1.4542 stainless steel
| Properties | Metric | Imperial |
| Density | 7.76 g/cm3 | 0.280 lb/in3 |
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We make sure that our produced 1.4542 stainless steel bars are made of high quality raw material. We thoroughly test each and every product before dispatching it to our customers.
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