进步
产品概述
Stainless steel seamless tube 304 is one of the most widely used austenitic stainless steel grades, combining excellent corrosion resistance, good formability and outstanding weldability. 我们的 304 stainless steel tubes are manufactured from hot-rolled or cold-drawn billets with strict process control and are supplied in both seamless and welded construction to meet the requirements of pressure piping, structural frames, fluid conveyance and sanitary applications. Every tube is fully annealed, pickled or bright-annealed, and hydro-tested before delivery.
规格
| Item | 规格 |
|---|---|
| 材料 | 不锈钢 304 (UNS S30400) |
| 标准 | ASTM A312 / A213 / A269, 在 10216-5, 国标/T 14976, JIS G3459 |
| 类型 | 无缝的 (SMLS) / Welded |
| Outer Diameter | 6 毫米 – 630 毫米 (1/8″-24″) |
| 室壁厚度 | 0.5 毫米 – 40 毫米 |
| 长度 | 3 米 – 12 米, random or fixed |
| 表面处理 | 退火 & 腌制, 光亮退火, 抛光 180-600 grit, 镜子 |
| 宽容 | 从 +/- 0.1 毫米 (冷拔), Wall +/- 10% |
| 脾气 | 退火, 半硬, 全硬 |
| End Protection | Plastic caps on both ends |
化学成分
| 元素 | 内容 (%) |
|---|---|
| C | <= 0.08 |
| 和 | <= 1.00 |
| 锰 | <= 2.00 |
| 磷 | <= 0.045 |
| S | <= 0.030 |
| 在 | 8.00 – 11.00 |
| 铬 | 18.00 – 20.00 |
主要特点
- Excellent corrosion resistance in atmospheric, industrial and mild chemical environments
- High tensile strength (>= 515 兆帕) with good ductility (elongation >= 40%)
- Superior weldability for TIG and MIG processes without pre-heating
- Excellent low temperature toughness, suitable for cryogenic applications
- Clean and smooth surfaces available from 2B, BA to mirror polished finish
- 100% hydrostatic or eddy current tested with traceable heat number per lot
应用领域
- Chemical and petrochemical pipelines and heat exchangers
- Food and beverage processing equipment
- Pharmaceutical and sanitary tubing
- 暖通空调, boiler and pressure piping systems
- Architectural handrails, structural frames and marine fittings
- Automotive exhaust systems and mechanical parts
质量控制
Each heat of material is supplied with a mill test certificate (在 10204 3.1). Dimensional inspection is performed on every tube, and mechanical testing, flattening test and hydrostatic test are carried out according to the applicable standard. Third-party inspection by SGS, BV or TUV is available upon request.
包装 & 船运
| Item | Detail |
|---|---|
| 包装 | Plastic caps, hexagonal bundle, steel frame or wooden case |
| Shipping Marks | 产品名称, 标准, 尺寸, heat no., net weight, destination port |
| 装货港 | 天津 / 青岛 / 上海, 中国 |
| 付款条件 | 电汇 30% 订金 + 70% 发货前, 即期信用证, D/P |
| 交货时间 | 15-30 存款后天数 |
| 起订量 | 1 ton per size |
| 贸易条款 | 离岸价格, 到岸价格, 病死率, 出厂前, 顺铂 |
为什么选择我们
With more than 15 years of experience in metal product export, our factory supplies a full range of stainless steel tubes with stable quality, competitive price and reliable delivery. A professional QC team and complete testing facilities ensure every order is inspected before shipment.
