JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
| Shape | Round |
| Technique | Hot Rolled |
| Surface Treatment | Bright |
| Diameter | 8 - 450mm |
| Length | 6m /pcs or cutting as request |
| 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 |
| Max Temperature | 572°F (300°C) |
| Composition | Cr 15-17.5%, Ni 3-5%, Cu 3-5%, Nb+Ta 0.15-0.45% |
| Certification | ISO, AISI, ASTM, EN, DIN, JIS |
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Product Specification
| Shape | Round | Technique | Hot Rolled |
| Surface Treatment | Bright | Diameter | 8 - 450mm |
| Length | 6m /pcs or cutting as request | 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 | Max Temperature | 572°F (300°C) |
| Composition | Cr 15-17.5%, Ni 3-5%, Cu 3-5%, Nb+Ta 0.15-0.45% | Certification | ISO, AISI, ASTM, EN, DIN, JIS |
| High Light | Precipitation Hardening 17-4PH Stainless Steel Round Bar ，Hot Rolled UNS S17400 Round Bar ，Bright Surface 630 Stainless Steel Bar | ||
UNS S17400 / Alloy 630 is a chromium-copper precipitation hardening stainless steel offering high strength and moderate corrosion resistance, maintaining properties up to 600°F (316°C).
| Product | 17-4PH Stainless Steel Round Bar |
|---|---|
| Standard | ASTM, GB, DIN, EN |
| Diameter | 8 - 450mm |
| Length | 6m per piece or custom cutting |
| 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 |
| Services | Cutting, surface polishing, heat treatment |
| Brand | Walsin, BAOSTEEL, TISCO, QINGSHAN |
17-4PH is a precipitation hardening martensitic stainless steel with copper and niobium additions. It combines high strength, hardness (up to 572°F/300°C), and corrosion resistance equivalent to Alloy 304 or 430 in most media.
Very high yield strength up to 1100-1300 MPa (160-190 ksi) can be achieved through heat treatment optimization.
| Standard | Designation |
|---|---|
| ASTM | A693 grade 630 (AMS 5604B) UNS S17400 |
| EURONORM | 1.4542 X5CrNiCuNb 16-4 |
| AFNOR | Z5 CNU 17-4PH |
| DIN | 1.4542 |
| Japanese JIS | SUS 630 |
| Element | Content (%) |
|---|---|
| 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 |
| Condition | Tensile Strength (MPa) | Yield Strength 0.2% Proof (MPa) | Elongation (% in 50mm) | Hardness Rockwell C (HRC) |
|---|---|---|---|---|
| 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 |
| Alternative Grade | Reason for Choosing 17-4PH |
|---|---|
| 431 | 17-4PH offers better strength characteristics |
| 416 | 17-4PH provides superior corrosion resistance |
| 316 | 17-4PH offers much higher strength |
| 2205 | 17-4PH provides higher strength with adequate corrosion resistance |
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: Various temperature and time combinations achieve specific mechanical properties:
| 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 |
| H1150 | 621 | 4 | 33 | 930-1080 |
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.
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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