材料等级: | UNS32750 | 标准: | ASTM A790 |
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尺寸 | 1/8-72” | W.T.: | 0.8mm – 50mm |
强光 | 双相钢管, 焊接钢管 |
Super Duplex Stainless Steel Pipe ASTM A790 UNS32750 Oil Gas Chemical Tube Sheet
概述
UNS S32750 is a stainless steel containing high chromium, high molybdenum, high nitrogen and low carbon for excellent corrosion resistance and high strength. It excels in highly chlorinated and acidic environments and is widely used in the chemical, oil and gas industries.
Heat treatment is the process of changing the organizational structure and properties of UNS S32750 through process treatments such as heating and cooling. Carbon is an important alloying element in UNS S32750 and has a great influence on the properties of UNS S32750.
特点 ASTM A790 UNS32750
Corrosion resistance is one of the most prominent properties of UNS S32750, which is mainly influenced by elements such as chromium, nickel and molybdenum. Corrosion mechanism is the root cause of UNS S32750 corrosion damage, corrosion mechanism of the different corrosion mechanism on the corrosion performance of UNS S32750 material has a significant effect
化学分析
C | N | P | Si | 锰 | 莫 | 倪 | Cr | S | 其他 |
0.030 | 0.24/0.32 | 0.035 | 0.80 | 1.20 | 3.0/5.0 | 6.00/8.00 | 24.0/26.0 | 0.020 | Cu:0.50 |
机械性能
管道密度 | 管材熔点 | 钢管屈服强度 | 钢管拉伸强度 | 管道伸长率 |
7.8 克/立方厘米 | 1350°C (2460°F) | Psi - 80000 , MPa - 550 | Psi - 116000 , MPa - 800 | 15 % |
Physical Properties of ASTM A790 UNS32750
密度(千克/米-1) | 7810 |
磁导率 | 33 |
杨氏模量(牛顿/平方毫米) | 199 x 103 |
比热,20°C (J.Kg-1.°K-1) | 475 |
Fracture Toughness, Kq (MPa.m) | 475 |
比电阻,20°C (µO.m) | 0.80 |
Thermal conductivity, 20°C (W.m-1.°K-1) | 14.2 |
Mean coefficient of thermal expansion, 20-100°C (°K-1) | 11.1 x 10-6 |
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。 |
补充测试 : 除上述测试外,我们还对生产的产品进行补充测试。其中包括
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应用
化学
石油和天然气
Pollution Control
食品
Agrochemicals