不锈钢棒材
概述
Nitronic 60 is a nitrogen-strengthened austenitic stainless steel known for high wear resistance, galling resistance and good mechanical strength. It is suitable for components exposed to sliding contact and demanding service conditions. Vertex Alloy supplies Nitronic 60 stainless steel round bar according to customer specifications.
尺寸范围
- Diameter Range 8–300 mm
牌号标准
| 标准体系 | 数值 |
|---|---|
| 🇺🇸 UNS | S21800 |
| 🇺🇸 AISI | Type 218 |
| 🇪🇺 EN | Werkstoff 1.3815 |
| Chinese equivalent | No direct GB equivalent (high-Si-Mn austenitic grade) |
化学成分
| 元素 | 数值 |
|---|---|
| C | ≤ 0.10 |
| Mn | 7.0–9.0 |
| Si | 3.5–4.5 |
| Cr | 16.0–18.0 |
| Ni | 8.0–9.0 |
| N | 0.08–0.18 |
| Mo | ≤ 0.75 |
| P | ≤ 0.060 |
| S | ≤ 0.030 |
| Fe | Balance |
机械性能
| 性能 | 数值 |
|---|---|
| Tensile Strength | ≥ 724 MPa (≤ 12.7 mm Ø) / ≥ 655 MPa (> 12.7 mm Ø) |
| Yield Strength (0.2%) | ≥ 379 MPa (≤ 12.7 mm Ø) / ≥ 345 MPa (> 12.7 mm Ø) |
| Elongation (4D) | ≥ 35% |
| Reduction of Area | ≥ 55% |
| Hardness | ≤ 241 HB (≤ 95 HRB) |
| Charpy V-Notch (−196°C) | ≥ 54 J (cryogenic toughness retained) |
| HS Cold-Worked Condition | Yield ≥ 620 MPa, Tensile ≥ 860 MPa |
物理性能
| 性能 | 单位 | 数值 |
|---|---|---|
| Density | - | 7.62 g/cm³ |
| Elastic Modulus | - | 180 GPa |
| CTE (20–100°C) | - | 15.8 × 10⁻⁶ /K |
| Electrical Resistivity | - | 0.98 μΩ·m |
| Magnetic Permeability | - | 1.003 (essentially non-magnetic, even after cold work) |
| Oxidation Resistance | - | Good to ~980°C (similar to Type 309) |
| Solution Annealing | - | 1060°C, water quench |
应用场景
- Fasteners Bolts, nuts, lock washers (ASTM A193 B8S / A194 8S)
- Valves Stems, seats and trim
- Pumps Wear rings and seals
- Chain Drives Pins, bushings, wear rails, roller bearings
- Aerospace Pins, bushings, actuator components
- Marine Boat shafting, mooring pins
- Infrastructure Bridge pins and hangers
- Automotive Valves and engine wear components
- Food & Pharma Wear parts needing corrosion + wear resistance
- General Bushings, rollers, guides