不銹鋼管件（pipe fitting）在管系中起著改變走向、改變標高或改變直徑、封閉管端以及由主管上引出支管的作用。在石油化工裝置中管道品種多，管系復雜，形狀各異，簡繁不等，所用的不銹鋼管(guan)件品種、材質、數量也就很多，選用時需要考慮的因素也復雜。管件的基本概念如圖4.6.1所示。不銹鋼管件的種類很多，這里根據用途、連接、材料、加工方式分類。

 ①. 按用途分類，見表(biao)4.6.1。

 ②. 按連接形(xing)式分類：

     根(gen)據(ju)不銹(xiu)鋼(gang)管(guan)(guan)(guan)(guan)(guan)件(jian)(jian)端部連(lian)(lian)接(jie)(jie)(jie)形式可(ke)將管(guan)(guan)(guan)(guan)(guan)件(jian)(jian)分為對(dui)(dui)焊(han)連(lian)(lian)接(jie)(jie)(jie)管(guan)(guan)(guan)(guan)(guan)件(jian)(jian)（簡稱對(dui)(dui)焊(han)管(guan)(guan)(guan)(guan)(guan)件(jian)(jian)）、承插(cha)焊(han)連(lian)(lian)接(jie)(jie)(jie)管(guan)(guan)(guan)(guan)(guan)件(jian)(jian)（簡稱承插(cha)焊(han)管(guan)(guan)(guan)(guan)(guan)件(jian)(jian)）、螺紋(wen)連(lian)(lian)接(jie)(jie)(jie)管(guan)(guan)(guan)(guan)(guan)件(jian)(jian)（簡稱螺紋(wen)管(guan)(guan)(guan)(guan)(guan)件(jian)(jian)）、法(fa)蘭連(lian)(lian)接(jie)(jie)(jie)管(guan)(guan)(guan)(guan)(guan)件(jian)(jian)、卡(ka)套連(lian)(lian)接(jie)(jie)(jie)管(guan)(guan)(guan)(guan)(guan)件(jian)(jian)、卡(ka)箍連(lian)(lian)接(jie)(jie)(jie)管(guan)(guan)(guan)(guan)(guan)件(jian)(jian)、粘(zhan)接(jie)(jie)(jie)連(lian)(lian)接(jie)(jie)(jie)管(guan)(guan)(guan)(guan)(guan)件(jian)(jian)、熱熔連(lian)(lian)接(jie)(jie)(jie)管(guan)(guan)(guan)(guan)(guan)件(jian)(jian)以及(ji)其他管(guan)(guan)(guan)(guan)(guan)件(jian)(jian)。在石(shi)油化(hua)工裝置的(de)配管(guan)(guan)(guan)(guan)(guan)設計中，常用(yong)(yong)對(dui)(dui)焊(han)管(guan)(guan)(guan)(guan)(guan)件(jian)(jian)、支管(guan)(guan)(guan)(guan)(guan)臺(tai)、承插(cha)焊(han)及(ji)螺紋(wen)連(lian)(lian)接(jie)(jie)(jie)管(guan)(guan)(guan)(guan)(guan)件(jian)(jian)的(de)形式。法(fa)蘭管(guan)(guan)(guan)(guan)(guan)件(jian)(jian)多用(yong)(yong)于(yu)特殊配管(guan)(guan)(guan)(guan)(guan)場合，使用(yong)(yong)范圍及(ji)數量相對(dui)(dui)比較少。可(ke)根(gen)據(ju)GB/T 17185《鋼(gang)制法(fa)蘭管(guan)(guan)(guan)(guan)(guan)件(jian)(jian)》的(de)規(gui)定選(xuan)用(yong)(yong)。

③. 按材料(liao)分(fen)類：

    a. 碳素鋼(gang)管(guan)(guan)件(jian)；b. 合(he)金(jin)鋼(gang)管(guan)(guan)件(jian)；c. 不(bu)銹鋼(gang)管(guan)(guan)件(jian)；d. 塑料管(guan)(guan)件(jian)；e. 橡膠管(guan)(guan)件(jian)；f. 鑄鐵管(guan)(guan)件(jian)；g. 鍛鋼(gang)管(guan)(guan)件(jian)等。

④. 按加工(gong)方式分：

    無縫(feng)、焊接(jie)、鍛制、鑄(zhu)造。

不銹(xiu)鋼管件的生(sheng)產工藝

  管(guan)(guan)件(jian)的(de)(de)(de)分類和規格非常多，生產工藝(yi)可(ke)能(neng)不同(tong)，了解管(guan)(guan)件(jian)的(de)(de)(de)基本生產工藝(yi)，對(dui)管(guan)(guan)件(jian)選(xuan)用和配管(guan)(guan)設計有一定的(de)(de)(de)用處。典型金屬管(guan)(guan)件(jian)的(de)(de)(de)生產工藝(yi)見圖(tu)4.6.2。