| 标准： | ASTM A403/ASME SA403 | 产品名称 | 90 DEG. LR ELBOW |
|---|---|---|---|
| 颜色 | 银色 | 连接： | 对焊 |
| 申请： | 连接管道 | 类型 | 长半径，短半径 |
| 强光 | WP304H Long Radius Elbow， Butt Weld Long Radius Elbow， ASTM A403 Pipe Fitting Elbow | ||
ASTM A403 WP304H BUTT WELD FITTING LONG RADIUS ELBOW 90 DEG B16.9
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概述
ASTM A403 WP304H has a high carbon content in chemical compositions.ASTM A403 WP304H normally is used for the pressure piping systems of moderate and high temperature services. WP304H is a kind of heat and corrosion resistant steel.It has a good pipe bending，welding performance，heat and corrosion resistance，high rupture strength and stability，also the cold deformation ability is very good.It could be used up to 650°C，oxidation temperature up to 850°C.
SS304H is a high carbon containing version of the conventionally used austenitic alloy grade 304 Stainless steel. The controlled carbon chemistry is the reason why the SS 304H Reducer has an increased Strength even when used at temperatures as high as up to 1500°F Apart from being an economical alloy， A403 WP304H Elbow is considered to be versatile and corrosion resistant. Thus making it suitable for use in a wide range of general-purpose applications. The standard for wrought grade austenitic stainless steel fittings such as UNS S30409 Tee the has been covered by ASTM A403 specification. The fittings produced in accordance with this specification are intended for use in applications involving pressure piping systems. The ASTM A403 is a specification that has enlisted several aspects that need to be followed during the production of these fittings by manufacturers.
化学成分
| 等级 | C | 锰 | Si | P | S | Cr | 莫 | 倪 | N | |
| 304 | 分钟 | – | – | – | – | – | 18 | – | 8 | – |
| 最大 | 0.08 | 2 | 0.75 | 0.045 | 0.03 | 20 | 10.5 | 0.1 | ||
| 304L | 分钟 | – | – | – | – | – | 18 | – | 8 | – |
| 最大 | 0.03 | 2 | 0.75 | 0.045 | 0.03 | 20 | 12 | 0.1 | ||
| 304H | 分钟 | 0.04 | – | – | -0.045 | – | 18 | – | 8 | – |
| 最大 | 0.1 | 2 | 0.75 | 0.03 | 20 | 10.5 | ||||
机械性能
| 等级 | 最小拉伸强度（兆帕 | 屈服强度 0.2% 抗压强度（兆帕） min | 伸长率（%，50 毫米） min | 硬度 | |
| 洛氏 B (HR B) 最大值 | 最大布氏硬度 (HB) | ||||
| 304 | 515 | 205 | 40 | 92 | 201 |
| 304L | 485 | 170 | 40 | 92 | 201 |
| 304H | 515 | 205 | 40 | 92 | 201 |
物理特性
| 等级 | 密度（千克/米3) | 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 | |||||
| 304/L/H | 8000 | 193 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 | 500 | 720 |
申请：
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- 建筑镶板、栏杆和装饰
- 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
