| 材料 | Alloy904/N08904/1.4539 | 标准： | ASTM A312， B677 ASME SA312， SB677 |
|---|---|---|---|
| 管道表面： | Pickled& Annealed | 包装 | Woven Bag/ Plastic Cap/ Ply Wooden Case |
| 强光 | TP904L Large OD Steel Pipe， N08904 Steel， Pickled Annealed Stainless Steel Round Pipe | ||
ASTM A312 TP904L Alloy 904/N08904 (1.4539) Large OD Steel Pipe
TONG CHUANG Special Steel has been dealing in and tubes of austenitic stainless steel and nickel alloy steel (Hastelloy， Monel， Inconel， Inkoloy) for more than 25 years， and has sales of steel pipes every year. Over 80，000 tons. Our customers have covered more than 45 countries including Italy， Britain， Germany， the United States， Canada， Chile， Colombia， Saudi Arabia， South Korea， Poland， Singapore， Australia， France， etc.
Originally intended for those applications involving dilute sulfuric acid， 904l stainless steel tubing is widely used in the chemical processing industry. Specifically， stainless steel 904l pipe or also known as UNS N08904， used in the production of phosphate based fertilizers. 904l is considered a super austenitic stainless grade with added molybdenum and copper content in its alloy to enhance its mechanical or corrosion resistance.
说明
Material 1.4539 (Alloy 904L) is an austenitic special steel with high molybdenum， high copper and very low carbon content.
Our product range in 1.4539 includes pipes， fittings and flanges， fittings.
Some of the quality tests carried out by our quality department includes:
| 腐蚀测试 | 仅当客户特别要求时 |
| 化学分析 | 按照规定的质量标准进行测试 |
| 破坏性/机械测试 | 拉伸 | 硬度 | 压平 | 扩口 | 法兰 |
| 反向弯曲和反向平面测试 | 完全符合相关标准和 ASTM A-450 和 A-530 规范，确保无故障延伸、焊接和客户端使用 |
| 涡流测试 | 利用数字瑕疵标记检测系统检测地下的均匀性 |
| 水压试验 | 100% 水压试验，根据 ASTM A 450 规范检查管道泄漏，可承受的最大压力为 20Mpa/7s。 |
| 空气压力测试 | 检查是否有漏气迹象 |
| 目视检查 | 钝化后，由经过培训的人员对每根钢管进行彻底的目视检查，以发现表面缺陷和其他缺陷 |
补充测试 ： 除上述测试外，我们还对成品进行补充测试。这方面的测试包括
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| 材料编号 | 1.4539 |
|---|---|
| EN Symbol (short) | X1NiCrMoCu25-20-5 |
| AISI/SAE | - |
| UNS | N08904 |
| AFNOR | Z 2 NCDU 25-20 |
| 学士学位 | - |
| 合金 | alloy 904L |
| 注册作品'标签 | - |
| 标准 | VdTÜV 421 ， SEW 400 |
化学成分 ¹ | ||||||||
| C ≤ % | Si ≤ % | 锰 ≤ % | P ≤ % | S ≤ % | Cr % | 莫 % | 倪 % | V |
| 0，02 | 0，70 | 2，0 | 0，030 | 0，010 | 19，0-21，0 | 4，0-5，0 | 24，0-26，0 | |
| Nb | Ti | Al | Co | 铜 % | N ≤ % | 铁 | ||
| 1，20-2，00 | 0，15 | |||||||
| ¹ 根据《2001 年钢铁指南 | ||||||||
特点 | ||
| 温度范围 | 密度 kg/dm³ | 硬度 (HB) |
|---|---|---|
| 压力弹/压力容器 - 60°C 至 400°C | 7，9 | ≤ 230 |
| 抗点蚀、应力腐蚀和晶间腐蚀的稳定性极佳 | ||
焊接填料 |
| 1.4539， 1.4519
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