ASTM A564 Type 630 H1150 Heat Treated High Strength 17-4PH Stainless Steel Bar
Price:
2.65
MOQ:
50
Delivery Time:
Negotiable
Product Description
17-4PH Stainless Steel Bar Rod
Overview
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).
Key Characteristics
- Precipitation hardening martensitic stainless steel with copper and niobium additions
- High strength and hardness maintained up to 572°F (300°C)
- Mechanical properties optimized through heat treatment
- Very high yield strength up to 1100-1300 MPa (160-190 ksi)
- Corrosion resistance equivalent to Alloy 304 or 430 in most media
Applications
Industry Applications
|
International Standards
|
Chemical Composition
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.07 max |
| Manganese (Mn) | 1.00 max |
| Silicon (Si) | 1.00 max |
| Phosphorus (P) | 0.04 max |
| Sulfur (S) | 0.030 max |
| 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 |
Mechanical Properties
| Condition | Tensile Strength (MPa) | Yield Strength 0.2% Proof (MPa) | Elongation (% in 50mm) | Hardness Rockwell C |
|---|---|---|---|---|
| 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 Expansion (0-100°C) | 10.8 µm/m/°C |
| Thermal Expansion (0-315°C) | 11.6 µm/m/°C |
| 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 |
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.
| 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 |
Alternative Grade Comparison
| Alternative Grade | Reasons for Selection |
|---|---|
| 431 | 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 for severe environments, but with much lower strength |
| 2205 | Much better corrosion resistance with lower strength (but not as low as 316) |
Processing Characteristics
Welding: Can be welded using all conventional methods without pre-heating. Careful design required to prevent weldment stresses.
Machining: Best machined in solution-treated condition with 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