High Hardness 17-4PH/630 Hot Rolled Stainless Steel Round Bar and Rod
Price:
3.14
MOQ:
50
Delivery Time:
Negotiable
Product Description
High Hardness 17-4PH / 630 / S17400 Stainless Steel Round Bar
17-4PH Precipitation Hardening (Type 630) is a chromium-copper precipitation hardening stainless steel designed for applications requiring high strength and moderate corrosion resistance. This material maintains high strength up to approximately 600°F (316°C).
Product Specifications
Product: 17-4PH Stainless Steel Round Bar
Standard: ASTM, GB, DIN, EN
Diameter: 8 - 450mm
Length: 6m per piece or custom cutting available
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
Services: Cutting, surface polishing, heat treatment
Brands: Walsin, BAOSTEEL, TISCO, QINGSHAN
Material Properties
Alloy 17-4 PH is a precipitation hardening martensitic stainless steel with copper and niobium additions. This grade combines high strength, hardness (up to 572°F / 300°C), and excellent corrosion resistance. Mechanical properties can be optimized through heat treatment, achieving very high yield strength up to 1100-1300 MPa (160-190 ksi).
Applications
- Offshore applications (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
Standards Compliance
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 | 15.00 - 17.50 |
| Ni | 3.00 - 5.00 |
| Cu | 3.00 - 5.00 |
| Nb+Ta | 0.15 - 0.45 |
Mechanical Properties
| Condition | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | 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 |
Corrosion Resistance
17-4PH stainless steel offers superior corrosion resistance compared to standard hardenable stainless steels, comparable to Alloy 304 in most media. For optimal performance in chloride media, aging at 1022°F (550°C) is recommended, while 1094°F (590°C) is preferred for H2S environments.
Heat Treatment
Solution Treatment (Condition A): Heat to 1040°C for 0.5 hours, then air-cool to 30°C. Small sections may be oil quenched.
Age Hardening: Performed at low temperatures to achieve required mechanical properties. Typical conditions include H900 (482°C/1h), H925 (496°C/4h), H1025 (552°C/4h), H1075 (580°C/4h), H1100 (593°C/4h), and H1150 (621°C/4h).
Age Hardening: Performed at low temperatures to achieve required mechanical properties. Typical conditions include H900 (482°C/1h), H925 (496°C/4h), H1025 (552°C/4h), H1075 (580°C/4h), H1100 (593°C/4h), and H1150 (621°C/4h).
Fabrication
Welding: All conventional methods can be used without pre-heating requirements.
Machining: Best performed in solution-treated condition with machining rates similar to grade 304 stainless steel.
Machining: Best performed in solution-treated condition with machining rates similar to grade 304 stainless steel.
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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