Hot Rolled Bright Surface 630 Stainless Steel Bar 17-4PH with OD 6-300mm
Price:
US $1.87-9.85 / kg
MOQ:
50 kg
Delivery Time:
Negotiable
Product Description
630 Stainless Steel Bar ASTM A564 Type 630 H1075 Round Bar
17-4PH Stainless Steel 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).
General Properties
Alloy 17-4 PH is a precipitation hardening martensitic stainless steel with copper and niobium/columbium additions. This grade combines high strength, hardness (up to 572°F / 300°C), and corrosion resistance. Mechanical properties can be optimized through heat treatment, achieving very high yield strength up to 1100-1300 MPa (160-190 ksi).
Applications & Standards
| Applications | Standards |
|---|---|
|
|
Corrosion Resistance
Alloy 17-4 PH withstands corrosive attacks better than standard hardenable stainless steels and is comparable to Alloy 304 in most media. For stress corrosion cracking risks, higher aging temperatures above 1022°F (550°C) are recommended. The alloy provides corrosion resistance in chemical, petroleum, paper, dairy, and food processing industries.
Chemical Composition
Table 1: Composition ranges for grade 630 stainless steels
| Element | Min (%) | Max (%) |
|---|---|---|
| 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
Table 2: Mechanical properties of grade 630 stainless steels
| Condition | Tensile Strength (MPa) | Yield Strength 0.2% Proof (MPa) | Elongation (% in 50mm) | Hardness Rockwell C (HRC) | 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 |
Heat Treatment
Table 6: Typical mechanical properties after solution treating
| 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 |
Applications
- Engine components
- High strength and boat propeller shafts
- Plastic moulding dies
- Valves and gears
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
Location
No.283-1, Youyi Middle Road, Xishan District, Wuxi City, Jiangsu Province
Contact Person
Gao Ben