Hot Rolled 17-4PH Stainless Steel Round Bar with Bright Surface and OD 6-300mm
Price:
3.18
MOQ:
50
Delivery Time:
Negotiable
Product Description
17-4PH Stainless Steel Round Bar
17-4 Precipitation Hardening (Type 630) is a chromium-copper precipitation hardening stainless steel designed for applications requiring high strength and moderate corrosion resistance. This alloy maintains high strength up to approximately 600°F (316°C).
Product Specifications
| Standard | ASTM GB DIN EN |
| Diameter | 8 - 450mm |
| Length | 6m /pcs or cutting as requested |
| Finishing | Black Bar / Bright Bar |
| Available 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. |
| Services | Cutting, surface polishing, heat treatment |
| Brand | Walsin, BAOSTEEL, TISCO, QINGSHAN |
Material 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).
Note: This grade should not be used at temperatures above 572°F (300°C) or at very low temperatures. It has adequate resistance to atmospheric corrosion or in diluted acids or salts where its corrosion resistance is equivalent to Alloy 304 or 430.
Applications & Standards
Applications
- Offshore (foils, helicopter deck platforms)
- Food industry equipment
- Pulp and paper industry
- Aerospace (turbine blades)
- Mechanical components
- Nuclear waste casks
- Engine components
- Boat propeller shafts
- Plastic moulding dies
- Valves and gears
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 (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 |
Physical Properties
| Property | Value |
|---|---|
| Density (kg/m³) | 7750 |
| Thermal Expansion 0-100°C (µm/m/°C) | 10.8 |
| Thermal Expansion 0-315°C (µm/m/°C) | 11.6 |
| Thermal Conductivity at 100°C (W/m.K) | 18.4 |
| Thermal Conductivity at 500°C (W/m.K) | 22.7 |
| Specific Heat 0-100°C (J/kg.K) | 460 |
| Electrical Resistivity (nΩ.m) | 800 |
Alternative Grade 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). |
Heat Treatment
| 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 |
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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