| 规格 | ASTM A213 TP347H 不锈钢无缝圆管 | 认证： | 国际标准化组织 |
|---|---|---|---|
| 形状 | 圆形 | 申请： | 用于流体和气体输送 |
| 技术： | 冷拔/冷轧 | 钢级： | 300 系列 |
| 表面处理： | 退火，抛光等。 | 型号 | 201/202/304/310/316L/430 |
| 强光 | TP347H Stainless Steel Seamless Tube， ASTM A213 无缝钢管， 205MPA Stainless Steel Seamless Tube | ||
RoundASTM A213 TP347H Stainless Steel Seamless Tube
We are TONG CHUANG Group，one of the biggest manufactures of stainless steel & duplex steel & alloy steel tubes and pipes in China. With development more than 33 years， and sells steel pipes every year more than 80000 tons. we have accumulated a great many clients all around the world and TONG CHUANG products also won the great praise among the customers.
ASTM A213 TP347H 不锈钢无缝管的化学成分
| 等级 | 347 | 347H | 347HFG |
| UNS 名称 | S34700 | S34709 | S34710 |
| 碳 (C) 最大值 | 0.08 | 0.04-0.10 | 0.06-0.10 |
| 锰 (Mn) 最大值 | 2 | 2 | 2 |
| 磷 (P) 最大值 | 0.04 | 0.04 | 0.04 |
| 硫 (S) 最大值 | 0.03 | 0.03 | 0.03 |
| 硅 (Si) 最大值 | 0.75 | 0.75 | 0.75 |
| 铬 (Cr) | 17.0-20.0 | 17.0-20.0 | 17.0-20.0 |
| 镍 (Ni) | 9.0-13.0 | 9.0-13.0 | 9.0-13.0 |
| 钼（Mo） | - | - | |
| 氮 (N) | - | - | - |
| 铁（Fe） | 巴尔 | 巴尔 | 巴尔 |
| 其他要素 | Cb+Ta=10xC-1.0 | Cb+Ta=8xC-1.0 | Nb+Ta=8xC-1.0 |
ASTM A213 TP347H 不锈钢无缝管的物理特性
| 在 -20°F 至 +100°F 退火条件下 | |||||
| 合金 | UNS 设计 | 密度 kg/dm³ | 弹性模量（x106 psi） | 平均热膨胀系数（IN./IN./°F x 10-6） | 导热系数（BTU-in/ft2-h-°F） |
| 347 | S34700 | 7.98 | 29 | 9.2 | - |
| 347H | S34709 | 7.98 | 29 | 9.2 | - |
| 347HFG | S34710 | - | 29 | 9.2 | - |
ASTM A213 TP347H 不锈钢无缝管的机械性能
| 在 -20°F 至 +100°F 退火条件下 | |||||||||
| 拉伸强度 | 拉伸强度 | 屈服强度 | 屈服强度 | ||||||
| 合金 | UNS | 规格 | 兆帕 | ksi | 兆帕 | ksi | 2 英寸内的伸长率（最小值） % | 粒度要求 | 哈恩德斯 HBW |
| 347 | S34700 | ASTM A213 | 515 | 75 | 205 | 30 | 35 | - | 192 |
| 347H | S34709 | ASME SA 213 | 515 | 75 | 205 | 30 | 35 | 7 或更粗 | 192 |
| 347HFG | S34710 | - | 550 | 80 | 205 | 30 | 35 | 7 或更粗 | 192 |
为什么 347h SS 用于化学加工？
Grade 347 is a special austenitic stainless steel that can be repeatedly and intermittently exposed to temperatures above 800 degrees Celsius. They are a modification of 304 stainless steel. They are similar to grade 321 in some of their mechanical properties， but differ in their composition by the presence of niobium. This material is resistant to most corrosive media at medium to high temperatures.
This is an important aspect required for chemical processing. The material has a minimum yield strength of 205 MPa and a minimum tensile strength of 515 MPa， which enables it to withstand high pressures at temperatures above 850 degrees Celsius. Pipes and components also have good elongation and high hardness. 304 material is subject to intergranular corrosion at temperatures above 850 degrees Fahrenheit， whereas 347H has a high carbon content and heat resistance， so it can work well in this temperature range.
The combination of pressure control， strength， hardness， heat resistance， and corrosion resistance makes it suitable for chemical processing. These properties also allow the material to be used in other highly corrosive， high heat applications such as boiler tubes and casings， radiant superheaters， heat exchanger tubes， oil and gas refineries， and aircraft exhaust stacks.
ASTM A213 TP347H 不锈钢无缝管 应用行业
- 近海石油钻探公司
- 发电
- 石油化工
- 气体处理
- 特种化学品
- 药品
- 制药设备
- 化学设备
- 海水设备
- 热交换器
- 冷凝器
- 纸浆和造纸工业
ASTM A213 TP347H 不锈钢无缝管测试证书
- EN 10204/3.1B，EN 10204/3.1B。
- 原材料证书
- 100% 射线照相测试报告
- 第三方检验报告等
材料测试：
- 面积拉伸等机械测试
- 硬度测试
- 化学分析 - 光谱分析
- 阳性材料鉴定 - PMI 测试
- 扁平化测试
- 微观和宏观测试
- 抗点蚀试验
- 扩口试验
- 晶间腐蚀 (IGC) 试验
