TSING SHAN STEEL INDUSTRIAL LIMITED
| Model NO. | 630 |
| 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 W/m.K |
| Specific Heat | 460 J/kg.K |
| Electrical Resistivity | 800 nΩ.m |
| Max Temperature | 572°F (300°C) |
| Certification | ISO, AISI, ASTM, EN, DIN, JIS |
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Product Specification
| Model NO. | 630 | 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 W/m.K |
| Specific Heat | 460 J/kg.K | Electrical Resistivity | 800 nΩ.m |
| Max Temperature | 572°F (300°C) | Certification | ISO, AISI, ASTM, EN, DIN, JIS |
| High Light | Hot Rolled SUS630 Round Bar ，Bright Surface Stainless Steel Round Bar ，OD 6-300mm 17-4PH Round Bar | ||
17-4PH (Type 630) is a chromium-copper precipitation hardening stainless steel offering high strength and moderate corrosion resistance. This martensitic stainless steel maintains high strength up to 600°F (316°C) and is available in solution-treated condition for easy machining.
| Element | Content (%) |
|---|---|
| C | ≤ 0.07 |
| Mn | ≤ 1.00 |
| Si | ≤ 1.00 |
| P | ≤ 0.04 |
| S | ≤ 0.030 |
| Cr | 15.0 - 17.5 |
| Ni | 3.0 - 5.0 |
| Cu | 3.0 - 5.0 |
| Nb+Ta | 0.15 - 0.45 |
| 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 |
| 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 |
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 with minimal distortion.
| 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 |
17-4PH stainless steel offers superior corrosion resistance compared to standard hardenable stainless steels, comparable to Alloy 304 in most media. Optimal aging temperatures for specific environments:
Note: Avoid exposure to stagnant seawater to prevent crevice or pitting corrosion.
Welding: All conventional welding methods can be used without pre-heating requirements.
Machining: Best performed in solution-treated condition with machining rates similar to grade 304 stainless steel.
| Alternative Grade | Reason for Selection |
|---|---|
| 431 | Higher toughness, better availability in some sizes |
| 416 | Free-machining martensitic steel, lower cost |
| 316 | Higher corrosion resistance but lower strength |
| 2205 | Much better corrosion resistance with moderate strength |
Company Details
Business Type:
Manufacturer
Year Established:
2012
Total Annual:
500,000,000-800,000,000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
Company Overview ： The company has an indoor warehouse of 5000 square meters and an open warehouse of 4000 square meters, which can fully meet the temporary turnover and phased storage of customers' steel pipe reservation. The subordinate processing plant has 6 sets of medium frequency h... Company Overview ： The company has an indoor warehouse of 5000 square meters and an open warehouse of 4000 square meters, which can fully meet the temporary turnover and phased storage of customers' steel pipe reservation. The subordinate processing plant has 6 sets of medium frequency h...
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