| 材料等级： | ASTM A312 | 标准： | TP347H |
|---|---|---|---|
| 尺寸 | 1/8’to 72′ | W.T.： | 0.3mm To 100mm |
| 长度 | 双随机，单随机，标准长度和切割长度 | 无损检测： | ET HT UT PT |
| 包装 | 胶合木箱/铁箱/捆包 | 申请： | Heat Exchangers/ Chemical |
| 强光 | 化学不锈钢， Heat Exchangers Stainless Steel， TP347H Seamless Stainless Steel Tubing | ||
Stainless Steel ASTM A312 TP347H Heat Exchangers Chemical Oil Gas
概述
TP347H (1Cr19Ni11Nb) belongs to high-carbon niobium-containing Cr-Ni austenitic stainless steel， due to the stabilizing element Nb， its resistance to intergranular corrosion and good resistance to polysulfuric acid intergranular stress corrosion， corrosion resistance in acid， alkali， salt and other corrosive media and its line of corrosion resistance is similar to the 18-8 austenitic stainless steel with Ti， so it is widely used in the boiler， power generation， petroleum， chemical， synthetic fiber， food， Paper and other industries. Used in large boiler superheater tube， reheater tube， steam pipe and petrochemical heat exchanger.
化学成分 ASTM A312 TP347H 不锈钢
| 要素 | 347 | 347H |
| 铬 | 17.00 min.-19.00 max. | 17.00 min.-19.00 max. |
| 镍 | 9.00 min.-13.00 max. | 9.00 min.-13.00 max. |
| 碳 | 0.08 | 0.04 最小值 -0.10 最大值 |
| 锰 | 2.00 | 2.00 |
| 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 |
机械 P属性 的 ASTM A312 TP347H 不锈钢
| 屈服强度 0.2% 偏移 | 极限拉伸 实力 | 伸长率 2 英寸 | 硬度 | ||
| 磅/平方英寸（最小值） | (MPa) | 磅/平方英寸（最小值） | (MPa) | %（最小值） | (最大值) |
| 30，000 | 205 | 75，000 | 515 | 40 | 201 布氏 |
Equivalent Grades Of ASTM A312 TP347H Stainless Steel
| 材料 | WERKSTOFF NR. | UNS |
| GermanN | Usa | |
| TP347H | 1.4961 | S34709 |
Physical Properties Of ASTM A312 TP347H Stainless Steel
| 属性 | 公制 |
| 密度 | 7.96 克/立方厘米 |
What is 347H ?
347H is a high carbon version of alloy 347. 347H stainless steel tubing has higher creep resistance and can operate at high temperatures and pressures. The higher carbon content of 0.04-0.10% makes this grade double certified. 347H stainless steel tubing is stabilized to provide good protection against corrosion. It also has good oxidation resistance， similar to other austenitic steels. 347H stainless steel pipe is used for heavy-duty welded materials， where annealing is not possible. Stainless steel 1.4961 tubes are widely used in cabin heaters， aircraft exhaust， oil and gas refining systems， heat exchanger tubes， boiler tubes for casings， etc.
申请：
- Aerospace.
- 实验室工作台和设备。
- 沿海建筑镶板、栏杆和装饰。
- 船用配件
- Chemical Processing.
- 热交换器。
- 用于采矿、采石和水过滤的编织或焊接筛网。
- 螺纹紧固件
