| 产品名称 | 不锈钢 BW 弯头 | 规格 | ASTM A815 |
|---|---|---|---|
| 尺寸标准： | ASME/ANSI B16.9 | 材料 | S31803 |
| O.D.： | 14” | W.T.： | Sch5-Sch160，XS，XXS，STD |
| 强光 | S31803 Equal Tee Fitting， Duplex Steel Equal Tee Pipe Fitting， Sch5 Heat Exchanger Equal Tee | ||
Duplex Steel Pipe Fitting Equal Tee ASTM A815 S31803 B16.9 Heat Exchanger Oil Gas
什么是 A815 S31803
Duplex stainless steels are extremely corrosion-resistant， work-hardenable alloys. Their microstructure consists of a mixture of austenitic and ferrite phases. Thus， duplex stainless steels display the properties of both austenitic and ferritic stainless steels. This combination of properties implies some compromises compared to pure austenitic and pure ferritic steel grades.
Duplex stainless steels are， in most cases， harder than ferritic stainless steels. The strength of duplex stainless steels can be twice that of austenitic stainless steels in some cases.
Although duplex stainless steels are considered resistant to stress corrosion cracking， they are not as resistant to this form of attack as ferritic stainless steels.
A815 S31803 机械性能
| 机械性能 | 价值 |
| 证明压力 | 450 Min MPa |
| 拉伸强度 | 620 Min MPa |
| 伸长率 A50 毫米 | 25 Min % |
| 硬度 | 290 Max HB |
A815 S31803 化学成分
| 要素 | 内容 (%) |
|---|---|
| 铁，Fe | 63.75-71.92 |
| 铬，Cr | 21.0-23.0 |
| 镍，Ni | 4.50-6.50 |
| 钼，Mo | 2.50-3.50 |
| 锰，Mn | 2.0 |
| 硅，Si | 1.0 |
| 氮，N | 0.080-0.20 |
| 碳，C | 0.030 |
| 磷，P | 0.030 |
| 硫，S | 0.020 |
A815 S31803 申请：
- 石油和天然气管道
- 化学工业
- 泵轴
- 食品加工业
