JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
| Shape | Round |
| Technique | Hot Rolled |
| Surface Treatment | Bright |
| Specification | OD 6-300mm |
| Production Capacity | 50000kgs |
| Tensile Strength | 1105-1310 MPa |
| Yield Strength | 1000-1170 MPa |
| Elongation | 10-16% |
| Hardness | 28-44 HRC |
| Density | 7750 kg/m³ |
| Thermal Conductivity | 18.4-22.7 W/m.K |
| Specific Heat | 460 J/kg.K |
| Electrical Resistivity | 800 nΩ.m |
| Coefficient of Thermal Expansion | 10.8-11.6 µm/m/°C |
| Maximum Temperature | 572°F (300°C) |
| Certification | ISO, AISI, ASTM, EN, DIN, JIS |
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Product Specification
| Shape | Round | Technique | Hot Rolled |
| Surface Treatment | Bright | Specification | OD 6-300mm |
| Production Capacity | 50000kgs | Tensile Strength | 1105-1310 MPa |
| Yield Strength | 1000-1170 MPa | Elongation | 10-16% |
| Hardness | 28-44 HRC | Density | 7750 kg/m³ |
| Thermal Conductivity | 18.4-22.7 W/m.K | Specific Heat | 460 J/kg.K |
| Electrical Resistivity | 800 nΩ.m | Coefficient of Thermal Expansion | 10.8-11.6 µm/m/°C |
| Maximum Temperature | 572°F (300°C) | Certification | ISO, AISI, ASTM, EN, DIN, JIS |
| High Light | Hot Rolled Stainless Steel Round Bar ，Bright Surface 17-4PH Round Bar ，OD 6-300mm 630 Round Bar | ||
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).
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤ 0.07 |
| Manganese (Mn) | ≤ 1.00 |
| Silicon (Si) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.04 |
| Sulfur (S) | ≤ 0.030 |
| 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 |
| 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 H900 | 1310 min | 1170 min | 10 min | 40 min |
| Condition H1150 | 930 min | 724 min | 16 min | 28 min |
| Property | Value |
|---|---|
| Density | 7750 kg/m³ |
| Thermal Expansion (0-100°C) | 10.8 µm/m/°C |
| Thermal Conductivity (100°C) | 18.4 W/m·K |
| Specific Heat (0-100°C) | 460 J/kg·K |
| Electrical Resistivity | 800 nΩ·m |
| Alternative Grade | Selection Considerations |
|---|---|
| 431 | Higher toughness, better availability in some sizes |
| 416 | Free-machining martensitic steel, better for repetition machining, lower cost |
| 316 | Higher corrosion resistance but much lower strength |
| 2205 | Much better corrosion resistance with lower strength (but higher than 316) |
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:
| Condition | Temperature (°C) | Time (h) | Typical Hardness (HRC) |
|---|---|---|---|
| H900 | 482 | 1 | 44 |
| H925 | 496 | 4 | 42 |
| H1025 | 552 | 4 | 38 |
| H1150 | 621 | 4 | 33 |
Welding: Can be welded using all conventional methods without pre-heating. Design carefully to prevent weldment stresses.
Machining: Best machined in solution-treated condition with rates similar to grade 304 stainless steel.
17-4PH withstands corrosive attacks better than standard hardenable stainless steels and is comparable to Alloy 304 in most media. For optimal stress corrosion cracking resistance, aging temperatures above 550°C are recommended.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification：
Verified Supplier
Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative... Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative...
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