合金钢管材

产品描述
上海顶点合金有限公司(Shanghai Vertex Alloy Co., Ltd,简称 Vertex Alloy)供应殷瓦36合金管(Invar 36 / UNS K93600 / W.Nr 1.3912 / FeNi36,国标 4J36)。Invar 36 是含镍 36% 的铁镍低膨胀合金,20–100°C 热膨胀系数仅 1.2–1.5×10⁻⁶/K,约为碳钢的十分之一,是商用金属中膨胀系数最低的材料,且在低温(至 -250°C)保持良好强度与韧性。产品为无缝管及焊管,执行 ASTM F1684 标准,外径 6–219mm、壁厚 0.5–15mm,退火或硬态交货,附 EN 10204 3.1 材质证明,亦可定制毛细管。广泛用于 LNG 储运管路、激光谐振腔管、光学结构、波导、标准量具及复合材料成型模具等对尺寸稳定性要求极高的场合。注:Invar® 为 Aperam Imphy 注册商标,我司供应的是符合 ASTM F1684 的同等 4J36 低膨胀合金。
尺寸范围
- OD: 6–219 mm
- WT:0.5–15 mm
- L: Up to 6,000 mm, cut-to-length available
牌号标准
| 标准体系 | 数值 |
|---|---|
| USA (UNS) | K93600 (also K93601 / K93603) |
| Germany (W.Nr) | 1.3912 / FeNi36 |
| China (GB) | 4J36 |
| Commercial Names | Invar 36 (Aperam Imphy), Nilo 36, Pernifer 36 |
| Product Standard | ASTM F1684 |
| Reference Standards | ASTM B753, SEW 385, NF A54-301 |
化学成分
| 元素 | 数值 |
|---|---|
| NI | 35.0–37.0 |
| C | ≤ 0.05 |
| Mn | ≤ 0.60 |
| Si | ≤ 0.35 |
| Co | ≤ 0.50 |
| Cr | ≤ 0.50 |
| P | ≤ 0.025 |
| S | ≤ 0.025 |
| Fe | Balance |
机械性能
| 性能 | 数值 |
|---|---|
| Tensile Strength | 450–585 MPa |
| Yield Strength (0.2%) | 240–275 MPa |
| Elongation (50 mm) | 30–45% |
| Hardness | 140–160 HB |
| Cryogenic Toughness | Good down to −250°C |
物理性能
| 性能 | 单位 | 数值 |
|---|---|---|
| Density | - | 8.11 g/cm³ |
| Melting Point | - | ≈ 1,430°C |
| CTE (20–100°C) | - | 1.2–1.5 × 10⁻⁶ /K |
| CTE (20–200°C) | - | ≈ 2.6 × 10⁻⁶ /K |
| Curie / Inflection Point | - | ≈ 220–230°C |
| Thermal Conductivity (20°C) | - | 10.0–10.5 W/(m·K) |
| Magnetic | - | Yes (below Curie point) |
应用场景
- LNG / Cryogenic:LNG tank & piping systems;Membrane tank support components;
- Laser & Optics: Laser resonator tubes; Optical benches, telescope structures
- Precision Instruments:Standards of length, metrology devices;Waveguide tubes
- Aerospace:Satellite structures; Composite tooling & molds
- Electronics: Thermostat rods, shadow masks
- Scientific: Cryogenic research apparatus

