碳钢管材
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 SAE 1008 钢管（AISI 1008 / UNS G10080，近似国标 08 钢）。SAE 1008 是低碳软钢，碳含量 ≤ 0.10%、锰 0.30–0.50%（SAE J403），焊接性与冷成型性优异，是最经典的机械结构用焊管牌号之一，执行 ASTM A513 电阻焊机械钢管标准。产品为直缝焊圆管、方管、矩形管，外径 6–219mm，壁厚 0.5–10mm，可供焊态、冷拔及退火状态，定尺 3–12 米并可按需切割，附 EN 10204 3.1 材质证明。广泛用于家具管、汽车排气及结构管、护栏扶手、通用机械零件等。
尺寸范围
- OD 6–219 mm (1/4"–8")
- 3–12 m fixed length
牌号标准
| 标准体系 | 数值 |
|---|---|
| USA (SAE/AISI) | 1008 |
| 🇺🇸 UNS | G10080 |
| China (GB) | 08 steel |
| Japan (JIS) | SPCC / SPHC (sheet equivalents) |
| Germany (DIN) | 1.0204 |
| Typical Spec | ASTM A513 (ERW mechanical tubing) |
| Composition Spec | SAE J403 |
化学成分
| 元素 | 数值 |
|---|---|
| C | ≤ 0.10 |
| Mn | 0.30–0.50 |
| P | ≤ 0.040 |
| S | ≤ 0.050 |
| Si | ≤ 0.10 (killed steel, typical) |
| Fe | Balance |
机械性能
| 性能 | 数值 |
|---|---|
| Tensile Strength | ≈ 305 MPa |
| Yield Strength | ≈ 170 MPa |
| Elongation (50 mm) | ≥ 30% |
| Reduction of Area | ≈ 55% |
| Hardness | ≈ 86 HB |
| Machinability | ≈ 55% (AISI 1212 = 100%) |
物理性能
| 性能 | 单位 | 数值 |
|---|---|---|
| Density | - | 7.87 g/cm³ |
| Melting Range | - | 1,430–1,470°C |
| Elastic Modulus | - | 190–210 GPa |
| Thermal Conductivity | - | ≈ 60 W/(m·K) |
| CTE (20–100°C) | - | 12.6 × 10⁻⁶ /K |
| Specific Heat | - | ≈ 480 J/(kg·K) |
| Electrical Resistivity | - | ≈ 130 nΩ·m (20°C) |
应用场景
- Automotive:Exhaust system tubes;Seat frames, structural tubes
- Furniture:Chair and table frames;Tube legs, bed frames
- Construction: Handrails, guardrails；Scaffolding tubes
- General Engineering：Machine frames, bushings
- Bicycle / E-mobility：Frame tubes, fork tubes
- HVAC：Ventilation ducting, condenser tubes
- Hardware：Tubular handles, display racks, shelves