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Raian IonescuQualità materiale molto buona. abbiamo cooperare più di 10 anni. Vendono i generi dei lotti di materiale d'acciaio. Tutta la qualità materiale buona. Essi dovere per tutta la qualità materiale. Stiamo spianando per continuare a cooperare in futuro con loro
Bright Polished 17-4PH Stainless Steel Round Bar with OD 3-300mm and Precipitation Hardening
Dettagli
| Forma | Girare | Tecnica | Laminato a caldo |
|---|---|---|---|
| Trattamento superficiale | Luminoso | Diametro | 8-450 mm |
| Lunghezza | 6 m/pz | Grado principale | 17-4ph |
| Resistenza alla trazione | 1105 - 1310MPa | Forza di snervamento | 1000 - 1170MPa |
| Allungamento | 10-16% | Durezza | 28 - 44 HRC |
| Densità | 7750kg/m³ | Conduttività termica | 18,4 - 22,7 W/mK |
| Resistività elettrica | 800 nΩ.m | Coefficiente di espansione | 10,8 - 11,6 µm/m/°C |
| Temperatura massima | 572 ° F (300 ° C) | ||
| Evidenziare | Bright Polished Stainless Steel Round Bar,OD 3-300mm 17-4PH Stainless Steel Bar,Precipitation Hardening 630 Stainless Steel Bar |
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Descrizione di prodotto
China Factory Direct Stainless Steel Bar - Grade 17-4PH / 630 / 1.4542
Precipitation hardening stainless steel bars with high strength and moderate corrosion resistance, maintained up to 600°F (316°C).
Product Specifications
| 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 |
Material Description
17-4PH (Type 630) is a chromium-copper precipitation hardening martensitic stainless steel with Cu and Nb/Cb additions. It combines high strength, hardness (up to 572°F / 300°C), and corrosion resistance equivalent to Alloy 304 or 430 in most media.
Applications
- Offshore (foils, helicopter deck platforms)
- Food industry
- Pulp and paper industry
- Aerospace (turbine blades)
- Mechanical components
- Nuclear waste casks
Standards
- ASTM A693 grade 630 (AMS 5604B) UNS S17400
- EURONORM 1.4542 X5CrNiCuNb 16-4
- AFNOR Z5 CNU 17-4PH
- DIN 1.4542
Chemical Composition
| 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
| 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 |
Physical Properties
| Property | Value |
|---|---|
| Density | 7750 kg/m³ |
| Mean Co-eff of Thermal Expansion (0-100°C) | 10.8 µm/m/°C |
| Thermal Conductivity (at 100°C) | 18.4 W/m·K |
| Specific Heat (0-100°C) | 460 J/kg·K |
| Electrical Resistivity | 800 nΩ·m |
Alternative Grade Comparison
| Alternative Grade | Reason for Choosing 17-4PH |
|---|---|
| 431 | 431 has higher toughness but 17-4PH offers better strength |
| 416 | 416 is free-machining but 17-4PH provides superior strength |
| 316 | 316 has higher corrosion resistance but much lower strength |
| 2205 | 2205 has better corrosion resistance with lower strength |
Heat Treatment
Solution treatment (Condition A): Heated at 1040°C for 0.5 h, then air-cooled to 30°C. Small sections can be oil quenched.
Age Hardening Conditions
| 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 |
Processing Characteristics
Welding: Can be welded using all conventional methods without pre-heating. Care should be taken to prevent weldment stresses.
Machining: Can be machined in solution-treated condition with machining rates similar to grade 304 steels.
Product Applications
- Engine components
- High strength and boat propeller shafts
- Plastic moulding dies
- Valves and gears
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