| 规格 | ASTM A213 | 年级 | TP321 |
|---|---|---|---|
| 表面： | Annealed And Pickled (AP)， Polished， Bright Annealed (BA)， Cold Drawn | 过程： | 冷拔，冷轧 |
| 非破坏性测试： | 涡流测试 -ASTM E426，静态测试 -ASTM A999，超声波测试 -ASTM E213 | 类型 | 无缝 |
| 强光 | 1.4541 SMLS Bright Annealed Tube， TP321 Stainless Steel Bright Annealed Tube， Annealed Pickled Stainless Steel Tube | ||
ASTM A213 TP321 1.4541 Stainless Steel Seamless Bright Annealed Tube
A213 TP321 is a specification of heat exchanger tubes that are made from the 321 austenitic stainless steel. The A213 specifies pipe products for heat exchangers in different material grades， both the ferritic and austenitic steels. TONG CHUANG Group is a supplier of all kinds of stainless steel pipes. The A213 TP321 material is special in that the composition includes titanium which reduces the density of the ASTM A213 TP321 and therefore making it lightweight.
TP321 Tube Chemical Composition
| WEIGHT % | NI | CR | 明尼苏达州 | C | SI | S | P |
|---|---|---|---|---|---|---|---|
| MIN | 9.00 | 17.00 | |||||
| 最大 | 12.00 | 19.00 | 2.00 | .080 | 1.00 | .030 | .045 |
ASTM A213 TP321 Mechanical Properties:
| 密度 | 8.0 克/立方厘米 |
| 熔点 | 1454°C (2650°F) |
| 拉伸强度 | Psi - 75000 , MPa - 515 |
| 屈服强度（0.2%Offset） | Psi - 30000 , MPa - 205 |
| 伸长率 | 35 % |
ASTM A213 Stainless Steel Tubes Outside Diameter and Wall Thickness Tolerance
| OD， mm | 外径公差 |
|---|---|
| < 25.4 | +/- 0.10 |
| 25.4 – <= 38.1 | +/- 0.15 |
| > 38.1 -< 50.8 | +/- 0.20 |
| 50.8 -< 63.5 | +/- 0.25 |
| 63.5 -< 76.2 | +/- 0.30 |
| 76.2 – <= 101.6 | +/- 0.38 |
| > 101.6 – <= 190.5 | +0.38/-0.64 |
| > 190.5 – <= 228.6 | +0.38/-1.14 |
| OD， mm | WT 容限 |
|---|---|
| <= 38.1 | +20%/-0 |
| > 38.1 | +22%/-0 |
ASTM A213 TP321 Stainless Steels Physical Properties
*Physical properties of 321 grade stainless steel in the annealed condition
| 等级 | Density (kg/m³) | 弹性模量（GPa） | 平均热膨胀系数 (μm/m/°C) | 导热系数（瓦/米.K） | 比热 0-100°C (J/kg.K) | 电阻率（nΩ.m） | |||
| 0-100°C | 0-315°C | 0-538°C | 100°C 时 | 在 500°C 时 | |||||
| 321 | 8027 | 193 | 16.6 | 17.2 | 18.6 | 16.1 | 22.2 | 500 | 720 |
Equivalent Material for 321 Grade Stainless Steel
| 等级 | UNS 编号 | 老英国 | Euronorm | 瑞典 SS | 日本 JIS | ||
| BS | En | 没有 | 名称 | ||||
| 321 | S32100 | 321S31 | 58B， 58C | 1.4541 | X6CrNiTi18-10 | 2337 | SUS 321 |
应用：
-Food preparation equipment particularly in chloride environments
-Laboratory benches & equipment
-Coastal architectural panelling， railings & trim
-Boat fittings
-化学品容器，包括用于运输的容器
-热交换器
-用于采矿、采石和水过滤的编织或焊接筛网
-螺纹紧固件
-弹簧
