ASTM A564 630 17-4PH Bar UNS S17400 Stainless Steel Rod For Marine Applications
Product Details
| Product Name: | ASTM A564 17-4PH Stainless Steel Bar | Standard: | ASTM A564, ASTM A276, ASTM A479 |
|---|---|---|---|
| Grade: | 17-4PH | Type: | Round |
| Advantage: | High Corrosion Resistance | Section Shape: | Round |
| Shape: | Round | Color: | Customer's Request |
| Highlight |
ASTM A564 stainless steel rod,17-4PH stainless steel marine rod,UNS S17400 stainless steel bar |
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Product Description
ASTM A564 17-4PH Stainless Steel Bar (UNS S17400 / Type 630 / EN 1.4542) is a precipitation-hardening martensitic stainless steel that combines high strength, excellent corrosion resistance, and superior toughness. Compared with conventional stainless steel grades such as 304 and 316, 17-4PH provides significantly higher mechanical strength while maintaining good resistance to corrosion in marine and industrial environments.
| Item | Specification |
|---|---|
| Product Name | ASTM A564 17-4PH Stainless Steel Bar |
| Grade | 17-4PH Stainless Steel |
| UNS | S17400 |
| ASTM Type | Type 630 |
| EN | 1.4542 |
| Standard | ASTM A564, ASTM A276, ASTM A479 |
| Product Form | Round Bar, Flat Bar, Square Bar, Hex Bar |
| Manufacturing Process | Hot Rolled, Cold Drawn, Forged |
| Diameter | 6–500 mm |
| Length | 3 m, 6 m, or Customized |
| Surface Finish | Black, Bright, Peeled, Ground, Polished |
| Standard | Grade |
|---|---|
| ASTM | Type 630 |
| AISI | 630 |
| UNS | S17400 |
| EN | 1.4542 |
| DIN | X5CrNiCuNb16-4 |
| JIS | SUS630 |
| GB | 05Cr17Ni4Cu4Nb |
| Element | Content (%) |
|---|---|
| Chromium (Cr) | 15.0–17.5 |
| Nickel (Ni) | 3.0–5.0 |
| Copper (Cu) | 3.0–5.0 |
| Niobium + Tantalum (Nb+Ta) | 0.15–0.45 |
| Carbon (C) | ≤0.07 |
| Manganese (Mn) | ≤1.00 |
| Silicon (Si) | ≤1.00 |
| Phosphorus (P) | ≤0.04 |
| Sulfur (S) | ≤0.03 |
| Property | Value |
|---|---|
| Density | 7.75 g/cm³ |
| Melting Range | 1404–1440°C |
| Elastic Modulus | 196 GPa |
| Thermal Conductivity | 18.3 W/m·K (20°C) |
| Specific Heat | 460 J/kg·K |
| Electrical Resistivity | 0.80 μΩ·m |
| Coefficient of Thermal Expansion | 10.8 × 10⁻⁶/K (20–100°C) |
| Property | Typical Value |
|---|---|
| Tensile Strength | ≥1310 MPa |
| Yield Strength (0.2%) | ≥1170 MPa |
| Elongation | ≥10% |
| Hardness | Approx. 38–44 HRC |
Note: Mechanical properties vary depending on the heat treatment condition (H900, H1025, H1075, H1150, etc.).
We source high-quality raw materials from qualified steel mills to ensure excellent strength, corrosion resistance, and long-term performance.
Our production facilities utilize advanced hot rolling, forging, cold drawing, heat treatment, and precision machining technologies to guarantee consistent product quality.
Every stainless steel bar undergoes comprehensive inspections: chemical composition analysis, mechanical property testing, Ultrasonic Testing (UT), Positive Material Identification (PMI), surface inspection, dimensional inspection, and hardness testing.
Mill Test Certificate (EN 10204 3.1) and third-party inspections are available upon request.
Diameter: 6 mm–500 mm. Standard lengths: 3 m, 6 m, or custom cut lengths. Round, flat, square, and hex bars available in hot rolled, forged, bright, peeled, and ground finishes.
Precision cutting, CNC machining, turning, grinding, polishing, and customized dimensions.
Extensive stock ensures fast delivery, stable supply, flexible order quantities, and support for urgent project requirements.
Since 2008, we have supplied stainless steel products to customers worldwide in industries such as marine engineering, aerospace, oil & gas, petrochemical, and precision manufacturing.
As a manufacturer and exporter, we provide factory-direct prices, stable quality, professional technical support, worldwide shipping, and reliable after-sales service.
Product Highlights
ASTM A564 630 17-4PH Bar UNS S17400 Stainless Steel Rod For Marine Applications ASTM A564 17-4PH Stainless Steel Bar (UNS S17400 / Type 630 / EN 1.4542) is a precipitation-hardening martensitic stainless steel that combines high strength, excellent corrosion resistance, and superior toughness. ...
ASTM A564 630 17-4PH Bar UNS S17400 Stainless Steel Rod For Marine Applications
ASTM A564 630 17-4PH Bar UNS S17400 Stainless Steel Rod For Marine Applications ASTM A564 17-4PH Stainless Steel Bar (UNS S17400 / Type 630 / EN 1.4542) is a precipitation-hardening martensitic stainless steel that combines high strength, excellent corrosion resistance, and superior toughness . ...
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