-
Raian IonescuMaterial quality very good. we have cooperate more than 10 Years. They trade lots kinds of steel material. All material quality good. They duty for all material quality. We are planing continue cooperate with them in the future
Hardened Finishing 17-4PH Stainless Steel Round Bar with Bright Surface and OD 6-300mm
| Model NO. | 17-4PH/630 | Shape | Round |
|---|---|---|---|
| Technique | Hot Rolled | Surface Treatment | Bright |
| Specification | OD 6-300mm | Diameter | 8 - 450mm |
| Length | 6m /pcs Or Cutting As Request | Main Grade | 201 301 303Cu 304 304L 309S 310S 316L 316Ti 317L 318 321 347 410 420 430 431 440a/b/c 904L 2205 2507 |
| Tensile Strength | 1105-1310 MPa | Yield Strength | 1000-1170 MPa |
| Elongation | 10-16% | Hardness | 28-44 HRC |
| Thermal Conductivity | 18.4-22.7 W/m.K | Specific Heat | 460 J/kg.K |
| Elec Resistivity | 800 NΩ.m | ||
| Highlight | Hardened Finishing Stainless Steel Round Bar,Bright Surface 17-4PH Round Bar,OD 6-300mm 630 Stainless Steel Bar |
||
| Products | 17-4PH Stainless Steel Round Bar |
|---|---|
| Standard | ASTM GB DIN EN |
| Diameter | 8 - 450mm |
| Length | 6m /pcs or cutting as request |
| Finishing | black bar / Bright Bar |
| Main Grade | 201 301 303Cu 304 304L 309S 310S 316L 316Ti 317L 318 321 347 410 420 430 431 440a/b/c 904L 2205 2507 Hastelloy C276 C4 C22 Inconel 600 625 Incoloy 800 825 825H.etc |
| Service | Cutting, surface polishing, heat treatment |
| Brand | Walsin BAOSTEEL TISCO QINGSHAN |
17-4 Precipitation Hardening (Type 630) is a chromium-copper precipitation hardening stainless steel used for applications requiring high strength and moderate corrosion resistance. High strength is maintained to approximately 600°F (316°C).
Alloy 17-4 PH is a precipitation hardening martensitic stainless steel with Cu and Nb/Cb additions. The grade combines high strength, hardness (up to 572°F / 300°C), and corrosion resistance. Mechanical properties can be optimized with heat treatment, achieving very high yield strength up to 1100-1300 MPa (160-190 ksi).
| Applications | Standards |
|---|---|
|
|
| Grade | C | Mn | Si | P | S | Cr | Ni | Cu | Nb+Ta |
|---|---|---|---|---|---|---|---|---|---|
| 630 | min. max - 0.07 | - 1 | - 1 | - 0.04 | - 0.030 | 15 17.5 | 3 5 | 3 5 | 0.15 0.45 |
| Condition | Tensile Strength (MPa) | Yield Strength 0.2% Proof (MPa) | Elongation (% in 50mm) | Hardness Rockwell C (HR C) | Hardness Brinell (HB) |
|---|---|---|---|---|---|
| Solution Treated | 1105 typ | 1000 typ | 15 typ | 38 max | 363 max |
| Condition 900 | 1310 min | 1170 min | 10 min | 40 min | 388 min |
| Condition 1150 | 930 min | 724 min | 16 min | 28 min | 277 min |
| Mean Co-eff of Thermal Expansion (µm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Elec Resistivity (nΩ.m) |
|---|---|---|---|
| 0-100°C: 10.8 0-315°C: 11.6 0-538°C: - | At 100°C: 18.4 At 500°C: 22.7 | 460 | 800 |
| Grade | UNS No | Euronorm | Japanese JIS |
|---|---|---|---|
| 630 | S17400 | 1.4542 X5CrNiCuNb16-4 | SUS 630 |
| Grade | Reasons for choosing 17/4PH (630) |
|---|---|
| 431 | 431 Has higher toughness than 17/4PH. Better availability in some sizes. |
| 416 | Free-machining martensitic stainless steel - better for repetition machining. Lower cost. |
| 316 | Higher corrosion resistance of 316 to resist more severe environments, but with much lower strength than 17/4PH. |
| 2205 | Much better corrosion resistance than 17/4PH, with a lower strength (but not as low as 316). |
| Cond. | Hardening Temp (°C) | Time (h) | Typical Hardness Rockwell C | Tensile Strength (MPa) |
|---|---|---|---|---|
| A | Ann | - | 36 | 1100 |
| H900 | 482 | 1 | 44 | - |
| H925 | 496 | 4 | 42 | 1170-1320 |
| H1025 | 552 | 4 | 38 | 1070-1220 |
| H1075 | 580 | 4 | 36 | 1000-1150 |
| H1100 | 593 | 4 | 35 | 970-1120 |
| H1150 | 621 | 4 | 33 | 930-1080 |
- Engine components
- High strength and boat propeller shafts
- Plastic moulding dies
- Valves and gears

