| 产品名称 | 不锈钢无缝管 | 材料 | TP304/304L/304H/316L/309S/310S/316L/316H/317H/321， Etc. |
|---|---|---|---|
| 形状 | Half Circles ， Oval ， Squares ， Rectangles | O.D.： | 1/2′ |
| W.T.： | SCH 5S | 长度 | 定制罐 |
| 结束： | 平端/斜端 | 类型 | 无缝/焊接 |
| 表面： | 腌制和退火 | ||
| 强光 | Stainless Steel 304 Rectangular Tube， Special Shape Stainless Steel Seamless Tube， Pickled Annealed Seamless Steel Tube | ||
Special Shape Steel Tube Stainless Steel 304 Seamless Tube
Special-shaped seamless steel tube is a general term for seamless steel tubes with other cross-sectional shapes other than round tubes. Shaped tubes are more economical. Including non-circular cross-sectional profile， constant wall thickness， variable wall thickness， variable diameter and wall thickness along the length direction， symmetrical and asymmetric cross-section， etc. Such as square， rectangle， cone， trapezoid， spiral， etc. The special-shaped steel pipe can better adapt to the particularity of the conditions of use， save metal and improve the labor productivity of parts manufacturing. It is widely used in aviation， automobile， shipbuilding， mining machinery， agricultural machinery， construction， textile and boiler manufacturing. The methods of producing special-shaped pipes include cold drawing， electric welding， extrusion， hot rolling， etc. Among them， the cold drawing method has been widely used.
标准规格
ASTM A213 / A213M-11a:Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler， Superheater， and Heat-Exchanger Tubes
ASTM A269 - 10：一般用途奥氏体不锈钢无缝管和焊接管标准规范
ASTM A312 / A312M - 12：奥氏体不锈钢无缝、焊接和重冷作钢管标准规范
ASTM A511 / A511M - 12：无缝不锈钢机械管材标准规范
ASTM A789 / A789M - 10a：一般用途铁素体/奥氏体不锈钢无缝和焊接钢管标准规范
ASTM A790 / A790M - 11：铁素体/奥氏体不锈钢无缝管和焊接管标准规范
DIN 17456-2010：普通无缝圆形不锈钢管。
DIN 17458-2010：奥氏体不锈钢无缝圆管
EN10216-5 CT 1/2 : 不锈钢和管材
GOST 9941-81：耐腐蚀钢冷作和热作无缝钢管。
其他如 BS、JIS 标准或可提供
材料等级
| 美国标准 | 奥氏体钢： TP304，TP304L，TP304H，TP304N，TP314，TP310S，TP316，TP316L，TP316Ti，TP316H，TP317，TP317L，TP321，TP321H，TP347，TP347H，904L... 双相钢 ： S32101，S32205，S31803，S32304，S32750， S32760 其他：TP405，TP409， TP410， TP430， TP439，... |
| 欧洲标准 | 1.4301，1.4307，1.4948，1.4541，1.4878，1.4550，1.4401，1.4404，1.4571，1.4438， 1.4841，1.4845，1.4539，1.4162， 1.4462， 1.4362， 1.4410， 1.4501，1.4841 |
| GOST 标准 | 08Х17Т，08Х13，12Х13，12Х17，15Х25Т，04Х18Н10，08Х20Н14С2， 08Х18Н12Б，10Х17Н13М2Т，10Х23Н18，08Х18Н10，08Х18Н10Т， 08Х18Н12Т，08Х17Н15М3Т，12Х18Н10Т，12Х18Н12Т，12Х18Н9， 17Х18Н9， 08Х22Н6Т， 06ХН28МДТ |
Depending on requirements detailed by the customer， shaped tubing can be made stronger in some directions in a similar manner to the concept of an I-beam. All tubing drawn into shapes has to be formed through custom manufactured dies and subsequently straightened though specially formed tooling for straightening profiled tubing.
应用
Frequently， applications involve some type of stainless steel support for a product， a path or race for fiberoptics or other smaller components， or a dispensing application. Shaped seamless steel pipes are widely used in various structural parts， tools and mechanical parts. Compared with the round tube， the special-shaped tube generally has a larger moment of inertia and section modulus， and has a larger bending and torsion resistance， which can greatly reduce the structural weight and save steel.
