不锈钢管ba标准是什么

『壹』 不锈钢级别中EP级、BA级、AP级、MP级都是什么意思，分别用在什么地方

AP：酸洗管(Anneal treatment & Passivation) /(Acid pickling)
MP: 机械研磨处理或称机械抛光 (Mechanical Polish)
BA：光辉专烧钝处理或称光辉退火 (Bright Anneal treatment)/(Bright Annealing)
这里有我知道的管道材属质处理流程,参考一下!
EP:光亮退火--->无损检测--->化学抛光---->电抛光;
BA:光亮退火--->无损检测--->一次清洗; l$ n" o# r$ U& a( ~
CP/AP:热处理--->无损检测--->化学抛光;

『贰』 BA级不锈钢管件和Ep级不锈钢管件区别在哪

不锈钢的BA或EP级，指不锈钢的表面处理工艺。其实它本身并不是“级”，只是习惯上因其加工复杂程度不同而被称为XX级。

AP：酸洗管(Anneal treatment & Passivation) /(Acidpickling)

MP：机械研磨处理或称机械抛光 (Mechanical Polish)

BA：光辉烧钝处理或称光辉（光亮）退火 (Bright Anneal treatment)/(Bright Annealing)

EP：在BA管基础上对内表面做电化学抛光（电解抛光）

CP/AP：热处理后化学抛光;

『叁』 不锈钢食品管BA表面是什么意思

不锈钢BA管――BrightAnnealedtube(真空光亮退火管),它是气氛保护热处理(BrightAnnealed)的简称,又叫:不锈钢BA管,洁净管,光亮退火管,无缝管. BA表面的定义来自于美国标准ASTM A480 和欧盟标准EN10088。见下列英文解释。

The most common definitions of these surface finishes are provided by ASTM A480 and EN 10088. In both cases it is the cold rolled manufacturing method that is specified rather than specific, measurable characteristics about the surface. We have used ASTM A480 as an example:

ASTM A480:

No. 2D - A smooth, non-reflective cold-rolled annealed and pickled or descaled finish. This non-directional finish is favourable for the retention of lubricants in deep drawing applications.

No. 2B - A smooth, moderately reflective cold-rolled annealed and pickled or descaled finish typically proced by imparting a final light cold-rolled pass using [large diameter] polished rolls. This general-purpose finish is more readily polished than No 1 or 2D finishes. Proct with 2B finish is normally supplied in the annealed plus lightly cold-rolled condition unless a tensile-rolled [harder and stronger] proct is specified.

Bright Annealed [BA] Finish- A smooth, bright, reflective finish typically proced by cold rolling followed by annealing in a protective atmosphere so as to prevent oxidation and scaling ring annealing.

2B

2B is the most widely used stainless steel surface finish. It is especially common in instrial, chemical and food processing applications such as process vessels and tanks. It is also used in some architectural applications that will not be closely examined for uniformity of finish such as downpipes and gutters.

When specifying this finish think about these attributes:

• 2B is the most economical finish

• It is highly corrosion resistant because it has been chemically pickled and is smooth

• Over broad areas and between batches etc., it is not uniform and may not match in appearance

• It has been proced in the mill and can't be matched after fabrication

• It if often protected by plastic films until final cleanup and commissioning

2D

2D is used around the world in applications where its low reflectivity is important. The largest application is in roofing materials. The surface is rougher than 2B and retains lubricants better making it appealing for deep drawring. 2D surfaces are not designed for appearance so the limitations on matching of weld and other surface damage is not as critical. Railcars are a typical example where thicker sheet and ongoing abrasive damage make the rougher 2D a suitable finish.

When specifying this finish think about these attributes:

• 2D is not commonly available in Australia

• It is highly corrosion resistant because it has been chemically pickled and is relatively smooth

• Over broad areas and between batches etc., it is not uniform and may not match

• It has been proced in the mill and can't be matched after fabrication。

  Bright Annealed (BA)

The classic use of a BA finish is domestic: the interior of a dishwasher or clothes washing machine. In the clothes washer, it also provides a smooth, non-abrasive surface for the clothes to slide around. The mirror like surface is also used in road mirrors where a precise image is not required.

When specifying this finish think about these attributes:

• BA is common in some grades and thicknesses, but not all

• It is highly corrosion resistant because it is very smooth

• Different batches may not match

• It is has been proced in the mill and can't be exactly matched after fabrication although a mechanical mirror polish can be close.

『肆』 不锈钢抛光管 EP BA AP 级代表什么程度

AP、BA光亮退火光洁度<0.6um，EP电解抛光光洁度<0.2um。

1、EP：电解研磨处理

通过电化学抛光，可以极大的提高表面形态及及结构，使表层面积得到极大的程度的减少。表面是一层封闭的、厚厚的氧化铬膜。能量接近合金的正常水平，同事介质数量也会降为最少。

微电子、光电子和生物制药等行业对传输敏感或腐蚀性介质的高纯、洁净管道系统一般都采用光亮烧钝(BA)、电解抛光(EP)产品。

2、BA：光亮固溶处理或称光亮退火；

在加氢或真空状态高温热处理，一方面消除内应力，另一方面在管道表面形成一层钝化膜，以改善形态结构，减少能量水平，但不会提高表面粗糙度。

3、AP：酸洗管

管道经过酸洗或钝化，不会提高表面粗糙度，单可以去除残存的颗粒，降低能量水平，但不会减少介层数量。

(4)不锈钢管ba标准是什么扩展阅读：

不锈钢抛光亮度等级

目测法，将抛光后零件 表面的光亮度分为5级：

1级：表面有白色氧化膜，无光亮度；

2级：略有光亮，看不清轮廓；

3级：光亮度较好，能看出轮廓；

4级：表面光亮 ，较清晰地看出轮廓 (相当于电化学抛光的表面质量)；

5级：镜面般光亮。