High Hardness Hot Rolled Bright Surface 17-4PH Stainless Steel Round Bar Rod
Price:
US $3.14-3.63 / kg
MOQ:
50 kg
Delivery Time:
Negotiable
Product Description
High Hardness 17-4PH / 630 / S17400 Stainless Steel Round Bar
Precipitation hardening martensitic stainless steel offering high strength and moderate corrosion resistance, maintaining properties up to 600°F (316°C).
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 with Cu and Nb/Cb additions, combining high strength, hardness (up to 572°F / 300°C), and corrosion resistance comparable to Alloy 304 or 430.
Applications & Standards
Applications
- Offshore (foils, helicopter deck platforms)
- Food industry
- Pulp and paper industry
- Aerospace (turbine blades)
- Mechanical components
- Nuclear waste casks
Standards
- ASTM A693 grade 630 (AMS 5604B) UNS S17400
- EURONORM 1.4542 X5CrNiCuNb 16-4
- AFNOR Z5 CNU 17-4PH
- DIN 1.4542
Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Ni | Cu | Nb+Ta |
|---|---|---|---|---|---|---|---|---|---|
| 630 | 0.07 max | 1.0 max | 1.0 max | 0.04 max | 0.030 max | 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
| Property | Value |
|---|---|
| Density | 7750 kg/m³ |
| Mean Coefficient of Thermal Expansion (0-100°C) | 10.8 µm/m/°C |
| Thermal Conductivity (at 100°C) | 18.4 W/m·K |
| Specific Heat (0-100°C) | 460 J/kg·K |
| Electrical Resistivity | 800 nΩ·m |
Grade Specifications
| Grade | UNS No | Euronorm | Japanese JIS |
|---|---|---|---|
| 630 | S17400 | 1.4542 X5CrNiCuNb16-4 | SUS 630 |
Alternative Grade Comparison
| Alternative Grade | Reasons for Choosing 17-4PH (630) |
|---|---|
| 431 | 431 has higher toughness but 17-4PH offers better strength |
| 416 | 416 is free-machining with lower cost but lower strength |
| 316 | 316 has higher corrosion resistance but much lower strength |
| 2205 | 2205 has much better corrosion resistance with lower strength |
Heat Treatment
| Condition | Hardening Temp (°C) | Time (h) | Typical Hardness HRC | Tensile Strength (MPa) |
|---|---|---|---|---|
| A (Annealed) | - | - | 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 |
Processing Characteristics
Welding
Can be welded using all conventional methods without pre-heating. Care should be taken to prevent weldment stresses.
Machining
Can be machined in solution-treated condition with machining rates similar to grade 304 stainless steel.
Applications
- Engine components
- High strength and boat propeller shafts
- Plastic moulding dies
- Valves and gears
Product Images
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Get in Touch
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Company
JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
Location
No.283-1, Youyi Middle Road, Xishan District, Wuxi City, Jiangsu Province
Contact Person
Gao Ben