| 钢级： | 300 系列，不锈钢 304/316L， 400 系列， X5CrNi18-20， 200 系列 | 类型 | 无缝，焊接，圆管 |
|---|---|---|---|
| 标准： | ISO/IESI/JIS/ DIN/EN/GB | 认证： | ISO，SGS，BV，ISO&SGS，ISO/CE/SGS |
| 长度 | 3000-6000毫米，定制，最大 1800 米，11.8 米或根据需要，8 米 | 厚度 | 定制 |
| 技术： | 冷轧、热轧、冷拔、挤压、冷拔/冷轧或两者兼有 | 产品名称 | 不锈钢管，304 304L 316 316L 321 310S 不锈钢焊接/无缝管 |
| 材料 | 不锈钢 | 外径： | 6-630mm， 6-762mm， 6-860mm， 定制 |
| 年级 | 201/202/304/304L/316/316L/321/321H/347/347H/310S/410/420/430/440/439， Etc | 完成： | 刷光，冷拔，光亮退火或未退火 |
| MOQ： | 1 吨 | 包装 | 标准出口包装 |
| 付款期限： | T/T， L/C， Western Union， Paypal | 港口 | Shanghai/Ningbo/Qingdao/Tianjin |
| 价格期限： | FOB/CIF/CFR/EXW | 形状 | 无缝钢管 |
| 尺寸 | 定制 | 表面处理： | Polished/Pickled/Annealed |
| 强光 | tp 347h austenitic stainless steel pipes， astm a312 austenitic stainless steel pipes， heavily cold astm a312 tubing | ||
ASTM A312 TP347H Austenitic Stainless Steel For Heavily Cold Worked
同昌特钢 has been engaged in austenitic stainless steel and nickel alloy steel (Hastelloy， Monel， Inconel， Inkoloy) seamless welded pipes and pipes for more than 25 years， and steel pipes are sold every year. Over 80，000 tons. Our customers have covered more than 45 countries including Italy， Britain， Germany， the United States， Canada， Chile， Colombia， Saudi Arabia， South Korea， Poland， Singapore， Australia， France， etc.
ASTM A312 Gr Tp347h is an austenitic stainless steel. It contains chromium and nickel， making it corrosion-resistant. To increase toughness， the A312 347h material has a higher carbon content. Adding more carbon results in toughness， but also less strength than low carbon versions of the same material. But to overcome this problem， columbium was added to the A312 Tp347h material. The alloy composition makes the material resistant to most oxidizing agents. SA 312 Tp 347h material has excellent resistance to intergranular corrosion regardless of carbon content. This makes 347h stainless steel pipe suitable for applications operating at high temperatures and with a high risk of oxidation. SS 347H material is cold drawn and therefore cannot be hardened by heat treatment. But it can be hardened by cold work. The material can also be easily welded.
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 |
Why is 347h SS used for chemical processing?
Grade 347 is a special austenitic stainless steel that can be repeatedly and intermittently exposed to temperatures above 800 degrees Celsius. These are improvements over 304 stainless steel. They are similar to grade 321 in some mechanical properties， but differ in that they contain columbium in the composition. The material is resistant to most aggressive media at medium and high temperatures.
This is an important aspect required for chemical processing. The material has a minimum yield strength of 205MPa and a minimum tensile strength of 515MPa. This enables the material to withstand high temperature pressures above 850 degrees Celsius. Tubes and components also have good elongation and high hardness. 304 material can undergo intergranular corrosion at temperatures above 850 F. 347H has higher carbon content and heat resistance， so it can work in this temperature range.
The combination of pressure capacity， strength， hardness， heat resistance and corrosion resistance makes it suitable for chemical processing. These properties also make the material useful 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 Stainless Steel Application Industry
- Offshore Oil Drilling Company
- power generation
- 石油化工
- gas handling
- 特种化学品
- drug
- 制药设备
- 化学设备
- seawater equipment
- 热交换器
- 冷凝器
- 纸浆和造纸工业
说明
材料等级：
| 美国标准 | 奥氏体钢： TP304， TP304L， TP304H， TP304N， TP310S， TP316， TP316L， TP316Ti， TP316H， TP317， TP317L， TP321， TP321H， TP347， TP347H， 904L... 双相钢 ： S31803， S32101， S32205， S32304， S32750， S32760 其他 TP405， TP409， TP410， TP430， TP439，... |
| 欧洲标准 | 1.4162， 1.4301， 1.4307，1.4362， 1.4401， 1.4404， 1.4410， 1.4438， 1.4462， 1.4501， 1.4539， 1.4541， 1.4550， 1.4571， 1.4841， 1.4845，1.4878， 1.4948， |
| GOST 标准 | 08х17т， 08х13， 12х13， 12х17， 15х25т， 04х18н10， 08х20н14с2， 08х18н12б， 10х17н13м2т， 10х23н18， 08х18н10， 08х18н10т， 08х18н12т， 08х17н15м3т， 12х18н10т， 12х18н12т， 12х18н9， 17х18н9， 08х22н6т， 06хн28мдт。 |
尺寸范围
| 生产 | 外径 | 壁厚 |
| 无缝钢管 | 6.00 毫米-830 毫米 | 0.5 毫米-48 毫米 |
不锈钢：ASTM A312/A312-10a， TP304H， TP310H， TP316H， TP321H， TP347H（随机长度
尺寸DN15，DN25，DN30，DN40，DN50，DN80，DN100，DN150，DN200，DN250，DN300，DN350，DN400，DN500，DN600
ANSI B16.10: B16.19，SCH 5S，SCH 10S，SCH 20，SCH 30，SCH 40S，SCH 60，SCH 80S，SCH 100，SCH 120，SCH160， XS， XXS
