| 材料 | 钢 | 形状 | Elbow/Tee/Reducer/Coupling/Cap/Union/Cross/Plug/Nipple/Bushing/Adapter/Flange |
|---|---|---|---|
| 连接： | Threaded/Welded | 技术 | 锻造，铸造，推压，对焊，焊接 |
| 尺寸 | 定制尺寸， 1/8′-2'， 1/2′-48'， 1/2′-6'， DN15-DN1200 | 标准： | ANSI/ASME/API/DIN/JIS/BS/GB/etc. |
| 产品名称 | 黑漆管件，冲压管件，真空管件，对焊管件，不锈钢管件 | 申请： | Oil/Gas/Water/Chemical/Construction/etc. |
| 厚度 | STD， DIN， SCH40， SGP， SCH10-XXS（2-60 毫米） | 包装 | Carton/Wooden Case/Pallet/Bag/etc. |
| 压力： | High/Medium/Low | 表面处理： | Galvanized/Black/Polished/Coated/Painted |
| 温度 | High/Medium/Low | 类型 | 配件 |
| 强光 | 对焊弯管， Ultrasonic Test LR Elbow， 90 Butt Weld Elbow | ||
ASTM A403 WP304H-S 90 LR Elbow Butt Weld Pipe Fitting Ultrasonic Test
We are one of the largest suppliers of engineered piping products in China. Our products include steel pipes/pipes， fittings， flanges. After more than 20 years of development， we have accumulated many customers all over the world， and TONG CHUANG products have also won unanimous praise from customers.
ASTM A403 is a balanced austenitic chromium steel in which the end of carbide precipitation and therefore intergranular corrosion is considered. ASTM A403 is a balanced austenitic chromium steel in which the end of carbide precipitation and therefore intergranular corrosion is considered.
ASTM A403 is offset by the addition of chromium and tantalum and provides higher creep and stress rupture properties than A304 and A304L， which can also be used for exposures related to sensitization and intergranular corrosion. The expansion of columbium also gives ASTM A403 superior corrosion resistance over A321. ASTM A403H is a higher carbon version of ASTM A403 with enhanced high temperature and creep properties.
ASTM A403 is offset by the addition of chromium and tantalum and provides higher creep and stress rupture properties than A304 and A304L， which can also be used for exposures concerned with sensitization and intergranular corrosion. The expansion of columbium also allows ASTM A403 to have outstanding corrosion resistance over A321. ASTM A403H is a higher carbon content form of ASTM A403 and exhibits enhanced high temperature and creep properties.
ASTM A403 WP304-S 90 Deg. Elbow covers the standard for wrought austenitic stainless steel fittings for pressure piping applications. The material of pipe fittings shall include forgings， bars， plates or seamless or welded pipes. Forging or forming operations shall be performed by hammering， pressing， piercing， extruding， upsetting， rolling， bending， fusion welding， machining， or a combination of two or more of these operations. All accessories should be heat treated.
应进行化学和产品分析，碳、锰、磷、硫、硅、铬、钼和钛的化学成分应符合要求。应对配件材料进行拉伸试验，以确定屈服强度和拉伸强度等拉伸性能。根据本规范提供的配件应进行表面不连续性、表面检查和机械标记的目视检查。
特点
ASTM A403 WP304-S Chemical Composition
| 要素 | 304 | 304L |
| 铬 | 17.5 min.-19.5 max. | 17.5 min.-19.5 max. |
| 镍 | 8.00 min.-10.50 max. | 8.00 min.-12.00 max. |
| 碳 | 0.07 | 0.03 |
| 锰 | 2 | 2 |
| 磷 | 0.045 | 0.045 |
| 硫磺 | 0.03 | 0.03 |
| 硅 | 0.75 | 0.75 |
| 铌和钽 | 10 x (C + N) min.-1.00 max. | 8 x (C + N) min.-1.00 max. |
| 铁 | 平衡 | 平衡 |
ASTM A403 WP304 Mechanical Properties
| 等级 | 304 |
| 最小拉伸强度（兆帕 | 515 |
| 屈服强度 0.2% 抗压强度（兆帕） min | 205 |
| 伸长率（%，50 毫米）最小值 | 40 |
| 硬度 | |
| 洛氏 B (HR B) 最大值 | 92 |
| 最大布氏硬度 (HB) |
应用
- 石油
- 化学
- 机械
- 锅炉
- 电力
- 造船业
- 造纸
- 建筑
