Hot Rolled Bright Surface 17-4PH Stainless Steel Round Bar UNS S17400 OD 6-300mm Precipitation Hardening
Price:
3.4
MOQ:
50
Delivery Time:
Negotiable
Product Description
Precipitation Hardening Stainless Steel 17-4PH Round Bar
UNS S17400 Steel Rod with Solution Treatment for applications requiring high strength and moderate corrosion resistance 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 custom cutting
Finishing
Black Bar / Bright Bar
Service
Cutting, surface polishing, heat treatment
Material Description
17-4PH (Type 630) is a chromium-copper precipitation hardening martensitic stainless steel with Cu and Nb/Cb additions. This grade combines high strength, hardness (up to 572°F / 300°C), and corrosion resistance equivalent to Alloy 304 or 430 in most media.
Key Applications
- Offshore equipment (foils, helicopter deck platforms)
- Food processing industry
- Pulp and paper industry
- Aerospace components (turbine blades)
- Mechanical components
- Nuclear waste casks
- Engine components
- Boat propeller shafts
- Plastic molding dies
- Valves and gears
International 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
| Element | Content (%) |
|---|---|
| C | ≤ 0.07 |
| Mn | ≤ 1.00 |
| Si | ≤ 1.00 |
| P | ≤ 0.04 |
| S | ≤ 0.030 |
| 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 (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 (100°C) | 18.4 W/m·K |
| Thermal Conductivity (500°C) | 22.7 W/m·K |
| Specific Heat (0-100°C) | 460 J/kg·K |
| Electrical Resistivity | 800 nΩ·m |
| Mean Coeff. of Thermal Expansion (0-100°C) | 10.8 µm/m·°C |
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: Performed at low temperatures to achieve required mechanical properties with typical shrinkage of 0.10% for H1150 condition and 0.05% for H900 condition.
Processing Characteristics
Welding: Can be welded using all conventional methods without pre-heating requirement.
Machining: Can be machined in solution-treated condition with rates similar to grade 304 stainless steel.
Alternative Grade Comparison
| Alternative Grade | Selection Considerations |
|---|---|
| 431 | Higher toughness, better availability in some sizes |
| 416 | Free-machining martensitic stainless steel, lower cost |
| 316 | Higher corrosion resistance but much lower strength |
| 2205 | Much better corrosion resistance with lower strength |
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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