Hot Rolled 17-4PH Stainless Steel Round Bar with EN 10204-3.1 Certificate and OD 6-300mm
Price:
3.32
MOQ:
50
Delivery Time:
Negotiable
Product Description
Grade 1.4542 / 17-4PH Stainless Steel Bar with EN 10204-3.1 Certificate
High-strength precipitation hardening stainless steel bars with excellent mechanical properties and moderate corrosion resistance, supplied with EN 10204-3.1 certification.
Product Specifications
| Product | 17-4PH Stainless Steel Round Bar |
|---|---|
| Standard | ASTM GB DIN EN |
| Diameter | 8 - 450mm |
| Length | 6m /pcs or cutting as requested |
| Finishing | Black Bar / Bright Bar |
| Main Grades | 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 |
Material Description
17-4PH (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).
General Properties
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
| Applications | Standards |
|---|---|
|
|
Chemical Composition
| Element | C | Mn | Si | P | S | Cr | Ni | Cu | Nb+Ta |
|---|---|---|---|---|---|---|---|---|---|
| Content (%) | ≤0.07 | ≤1.0 | ≤1.0 | ≤0.04 | ≤0.030 | 15-17.5 | 3-5 | 3-5 | 0.15-0.45 |
Mechanical Properties
| Condition | Tensile Strength (MPa) | Yield Strength 0.2% Proof (MPa) | Elongation (% in 50mm) | Hardness Rockwell C (HRC) | 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 |
Physical Properties
| Density (kg/m³) | Mean Co-eff of Thermal Expansion (µm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Electrical Resistivity (nΩ.m) |
|---|---|---|---|---|
| 7750 | 10.8 (0-100°C) 11.6 (0-315°C) | 18.4 (at 100°C) 22.7 (at 500°C) | 460 | 800 |
Grade Specifications
| Grade | UNS No | Euronorm | Japanese JIS |
|---|---|---|---|
| 630 | S17400 | 1.4542 X5CrNiCuNb16-4 | SUS 630 |
Alternative Grades Comparison
| Alternative 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). |
Corrosion Resistance
Grade 630 stainless steels have good corrosion resistance in many environments. They exhibit improved resistance against stress corrosion cracking when aged at 550°C or more. The alloy withstands corrosive attacks better than standard hardenable stainless steels and is comparable to Alloy 304 in most media.
Heat Treatment
Solution treatment (Condition A): Heated at 1040°C for 0.5 h, then air-cooled to 30°C. Small sections can be oil quenched. Age-hardening at low temperatures achieves required mechanical properties.
| Condition | 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 |
Machining & Welding
Grade 630 stainless steels can be machined in their solution-treated condition with machining rates similar to grade 304 steels. They can be welded using all conventional methods without requiring pre-heating.
Product Images
Applications
- Engine components
- High strength and boat propeller shafts
- Plastic moulding dies
- Valves and gears
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Company
TSING SHAN STEEL INDUSTRIAL LIMITED
Location
NO.288,Youyi Road Xi Shan Dristrict , Wuxi, Jiangsu, China
Contact Person
Gao Ben