TSING SHAN STEEL INDUSTRIAL LIMITED
| Model NO. | 17-4PH |
| Shape | Round |
| Technique | Hot Rolled |
| Surface Treatment | Bright |
| Specification | OD 6-300mm |
| Production Capacity | 50000kgs |
| Diameter | 8 - 450mm |
| Length | 6m /pcs |
| Tensile Strength | 1105-1310 MPa |
| Yield Strength | 724-1300 MPa |
| Elongation | 10-16% |
| Hardness | 28-44 HRC |
| Density | 7750 kg/m³ |
| Thermal Conductivity | 18.4-22.7 W/m.K |
| Electrical Resistivity | 800 nΩ.m |
| Certification | ISO, AISI, ASTM, EN, DIN, JIS |
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Product Specification
| Model NO. | 17-4PH | Shape | Round |
| Technique | Hot Rolled | Surface Treatment | Bright |
| Specification | OD 6-300mm | Production Capacity | 50000kgs |
| Diameter | 8 - 450mm | Length | 6m /pcs |
| Tensile Strength | 1105-1310 MPa | Yield Strength | 724-1300 MPa |
| Elongation | 10-16% | Hardness | 28-44 HRC |
| Density | 7750 kg/m³ | Thermal Conductivity | 18.4-22.7 W/m.K |
| Electrical Resistivity | 800 nΩ.m | Certification | ISO, AISI, ASTM, EN, DIN, JIS |
| High Light | Hot Rolled Stainless Steel Round Bar ，Bright Surface 17-4PH Stainless Steel Bar ，OD 6-300mm Type 630 Stainless Steel Bar | ||
17-4PH Precipitation Hardening Stainless Steel (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).
| Product | 17-4PH Stainless Steel Round Bar |
|---|---|
| Standard | ASTM GB DIN EN |
| Diameter | 8 - 450mm |
| Length | 6m /pcs or cutting as requested |
| Finishing | Black Bar / Bright Bar |
| Main 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, etc. |
| Service | Cutting, surface polishing, heat treatment |
| Brand | Walsin, BAOSTEEL, TISCO, QINGSHAN |
Alloy 17-4 PH is a precipitation hardening martensitic stainless steel with Cu and Nb/Cb additions. The grade combines high strength, hardness (up to 572°F / 300°C), and corrosion resistance. Mechanical properties can be optimized with heat treatment, achieving very high yield strength up to 1100-1300 MPa (160-190 ksi).
| Grade | C | Mn | Si | P | S | Cr | Ni | Cu | Nb+Ta |
|---|---|---|---|---|---|---|---|---|---|
| 630 | 0.07 max | 1.0 max | 1.0 max | 0.04 max | 0.030 max | 15-17.5 | 3-5 | 3-5 | 0.15-0.45 |
| Condition | Tensile Strength (MPa) | Yield Strength 0.2% Proof (MPa) | Elongation (% in 50mm) | Hardness Rockwell C (HR C) | 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 |
| Property | Value |
|---|---|
| Density | 7750 kg/m³ |
| Thermal Conductivity at 100°C | 18.4 W/m·K |
| Thermal Conductivity at 500°C | 22.7 W/m·K |
| Specific Heat 0-100°C | 460 J/kg·K |
| Electrical Resistivity | 800 nΩ·m |
| Mean Coefficient of Thermal Expansion 0-100°C | 10.8 µm/m·°C |
| Grade | UNS No | Euronorm | Japanese JIS |
|---|---|---|---|
| 630 | S17400 | 1.4542 | SUS 630 |
| Grade | Reasons for Choosing 17/4PH (630) |
|---|---|
| 431 | 431 has 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 to resist more severe environments, but with much lower strength than 17/4PH. |
| 2205 | Much better corrosion resistance than 17/4PH, with lower strength (but not as low as 316). |
Grade 630 stainless steels have good corrosion resistance in many environments. They exhibit improved resistance against stress corrosion cracking when aged at 550°C or higher. These steels should not be used in solution treated Condition A for corrosive environments.
Grade 630 stainless steels have good resistance to oxidation. However, long-time exposure to temperatures of 370 to 480°C should be avoided to prevent loss of toughness. These grades should not be used above age-hardening temperature to avoid reduction of hardness and mechanical properties.
Solution treatment (Condition A) - Heated at 1040°C for 0.5 h, then air-cooled to 30°C. Small sections can be oil quenched.
Hardening - Age-hardened at low temperatures to achieve required mechanical properties.
| 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 |
Grade 630 stainless steels can be welded using all conventional methods and do not require pre-heating. Care should be taken in designing and welding high strength steels to prevent weldment stresses.
Grade 630 stainless steels can be machined in their solution-treated condition. They have machining rates similar to grade 304 steels.
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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