製品概要
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. 私たちの 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.

仕様
| アイテム | 仕様 |
|---|---|
| 材料 | ステンレス鋼 304 (UNS S30400) |
| 標準 | ASTM A312 / A213 / A269, で 10216-5, ギガバイト/トン 14976, JIS G3459 |
| タイプ | シームレス (SMLS) / 溶接 |
| Outer Diameter | 6 んん – 630 んん (1/8″-24″) |
| 肉厚 | 0.5 んん – 40 んん |
| 長さ | 3 メートル – 12 メートル, random or fixed |
| 表面仕上げ | 焼き鈍し & 漬け物, 光輝焼鈍, ポリッシュ 180-600 grit, 鏡 |
| 許容範囲 | の +/- 0.1 んん (cold drawn), 壁 +/- 10% |
| 気性 | 焼き鈍し, ハーフハード, フルハード |
| End Protection | Plastic caps on both ends |
化学組成
| 要素 | コンテンツ (%) |
|---|---|
| C | <= 0.08 |
| と | <= 1.00 |
| ん | <= 2.00 |
| P | <= 0.045 |
| S | <= 0.030 |
| で | 8.00 – 11.00 |
| Cr | 18.00 – 20.00 |
主な特長
- Excellent corrosion resistance in atmospheric, industrial and mild chemical environments
- High tensile strength (>= 515 MPa) 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
アプリケーション
- Chemical and petrochemical pipelines and heat exchangers
- Food and beverage processing equipment
- Pharmaceutical and sanitary tubing
- HVAC, boiler and pressure piping systems
- Architectural handrails, structural frames and marine fittings
- Automotive exhaust systems and mechanical parts
品質管理
Each heat of material is supplied with a mill test certificate (で 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, ご要望に応じて BV または TUV も利用可能です.
包装 & 運送
| アイテム | 詳細 |
|---|---|
| 包装 | Plastic caps, hexagonal bundle, steel frame or wooden case |
| 出荷マーク | 商品名, 標準, サイズ, heat no., 正味重量, 宛先ポート |
| 積み込み口 | 天津 / 青島 / 上海, 中国 |
| 支払い条件 | T/T 30% デポジット + 70% 出荷前に, 一目でわかるL/C, D/P |
| 納期 | 15-30 入金から数日後 |
| MOQ | 1 ton per size |
| 貿易条件 | FOB, CIF, CFR, EXW, DDP |
私たちを選ぶ理由
以上 15 金属製品の輸出における長年の経験, our factory supplies a full range of stainless steel tubes with stable quality, 競争力のある価格と信頼性の高い配送. A professional QC team and complete testing facilities ensure every order is inspected before shipment.

進捗







