Cold Drawn 17-4PH Stainless Steel Round Bar with Bright Surface and Diameter 3-50mm in Stock
Price:
US $3.13-3.61 / kg
MOQ:
50 kg
Delivery Time:
Negotiable
Product Description
Cold Drawn 17-4PH Stainless Steel Round Bar
Diameter 3-50mm in stock with 2m, 4m, 6m lengths available for immediate delivery.
Product Specifications
| Products | 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
17-4 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).
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 |
|---|---|
|
|
Corrosion Resistance
Alloy 17-4 PH withstands corrosive attacks better than standard hardenable stainless steels and is comparable to Alloy 304 in most media. Optimal tempering temperatures are 1022°F (550°C) for chloride media and 1094°F (590°C) for H2S media. The alloy is corrosion resistant in chemical, petroleum, paper, dairy and food processing industries.
Chemical Composition
Composition of 17-4PH Stainless Steel (Grade 630):
| Element | Content (%) |
|---|---|
| C | 0.07 max |
| Mn | 1.0 max |
| Si | 1.0 max |
| P | 0.04 max |
| S | 0.030 max |
| Cr | 15.0 - 17.5 |
| Ni | 3.0 - 5.0 |
| Cu | 3.0 - 5.0 |
| Nb+Ta | 0.15 - 0.45 |
Mechanical Properties
| Condition | Tensile Strength (MPa) | Yield Strength 0.2% Proof (MPa) | Elongation (% in 50mm) | Hardness Rockwell C (HRC) |
|---|---|---|---|---|
| Solution Treated | 1105 typ | 1000 typ | 15 typ | 38 max |
| Condition 900 | 1310 min | 1170 min | 10 min | 40 min |
| Condition 1150 | 930 min | 724 min | 16 min | 28 min |
Physical Properties
| Property | Value |
|---|---|
| Density | 7750 kg/m³ |
| Thermal Conductivity at 100°C | 18.4 W/m·K |
| Thermal Conductivity at 500°C | 22.7 W/m·K |
| Specific Heat (0-100°C) | 460 J/kg·K |
| Electrical Resistivity | 800 nΩ·m |
Heat Treatment
Solution treatment involves heating at 1040°C for 0.5 hours followed by air-cooling. Age hardening at various temperatures achieves the required mechanical properties:
| Condition | Hardening Temp (°C) | Time (h) | Typical Hardness (HRC) | 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 |
Applications
- Engine components
- High strength and boat propeller shafts
- Plastic moulding dies
- Valves and gears
Product Images
Contact us for pricing, availability, and custom cutting services for 17-4PH Stainless Steel Round Bars.
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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