| Production Name: | Super Duplex Stainless Steel Pipe | 标准： | astm a790， asme sa790 |
|---|---|---|---|
| 材料 | UNS S32750， X2CrNiMoN25-7-4， 1.4410， SAF2507 | OD： | 1/8′ TO 48′ |
| WT： | 附表 5 至附表 XXS | 长度 | 单随机，双随机和剪切长度 |
| 类型 | 无缝，焊接 | 结束： | 平端，斜端 |
| 申请： | Chemical Industry， Oil And Gas Industry， Food Industry， Etc | ||
| 强光 | Super Duplex Stainless Steels， 2507 Stainless Steels， 化学工业 | ||
ASTM A790 / ASME SA790 uns S32750 超级 Duplex Stainless Steels
A790 S32750 pipes refer to pipes made from the duplex stainless steel grade S32750， which is also known as 2507 stainless steel. These pipes are highly resistant to corrosion and have excellent mechanical properties， making them ideal for use in harsh environments such as offshore oil and gas platforms， chemical processing and marine engineering.
What are the characteristics of Duplex 2507 / UNS S32750?
- High resistance to chloride stress corrosion cracking
- High Strength
- Superior resistance to chloride pitting and crevice corrosion
- Good general corrosion resistance
- Suggested for applications up to 600° F
- Low rate of thermal expansion
- Combination of properties given by austenitic and ferritic structure
- Good weldability and workability
ASTM A790 / ASME SA790 S32750 Super Duplex Stainless Steel Specification
| 标准 | astm a790， asme sa790 |
| 等效标准 | DIN 17458，GOST 9941-81，GOST 9940-81，EN 10216-5，ASTM A790，ASME SA790，DIN 17456 |
| 材料 | UNS S32750 |
| 等效材料 | X2CrNiMoN25-7-4， 1.4410， SAF2507， F53 |
| 相关产品 | stainless steel tube， stainless steel pipe， heat exchanger steel tube |
化学成分
| 等级 | C 最大 | Si 最大 | 锰 最大 | P 最大 | S 最大 | Cr | 倪 | 莫 | N |
| UNS S32750 | 0.030 | 0.8 | 1.2 | 0.030 | 0.015 | 24.0-26.0 | 6.0-8.0 | 3.0-5.0 | 0.24-0.32 |
| UNS S31803 | 0.030 | 1.0 | 2.0 | 0.020 | 0.020 | 21.0-23.0 | 4.5-6.5 | 2.5-3.5 | 0.08-0.20 |
| UNS S31500 | 0.030 | 1.0 | 1.2-2.0 | 0.030 | 0.030 | 18.0-19.0 | 4.5-5.5 | 2.5-3.5 | 0.05-0.10 |
物理特性
| 等级 | Y.S.MPa min | T.S.Mpa min | 伸长 % | 硬度 HRC |
| UNS S32750 | 550 | 800 | 15 | 20 |
| UNS S31803 | 450 | 620 | 25 | 20 |
| UNS S31500 | 440 | 630 | 30 | 20 |
我们进行的部分质量检测包括
| 腐蚀测试 | 仅在客户特别要求时进行 |
| 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，可确保无故障膨胀、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% 静水压力测试根据 ASTM-A 450 标准进行，用于检查管子的泄漏情况，我们可支持的最大压力为 20Mpa/7s。 |
| 空气压力测试 | 检查是否有漏气迹象 |
| 目视检查 | 经过钝化处理后，每根管材都要由经过培训的员工进行彻底的目视检查，以发现表面缺陷和其他瑕疵。 |
应用
A790 S32750 pipes have a wide range of applications due to their excellent corrosion resistance and mechanical properties. Some of the common applications of these pipes include:
- Offshore oil and gas platforms
- Chemical processing plants
- 海水淡化厂
- 水处理厂
- 纸浆和造纸业
- 热交换器
- Power generation plants
- Marine engineering
- Food processing industry
- 制药业
These pipes are also used in various other industries where resistance to corrosion and high strength are required.
