特點：

H型鋼的(de)(de)翼緣(yuan)(yuan)內外側平行(xing)或接近于(yu)平行(xing)，翼緣(yuan)(yuan)端部呈直(zhi)角，因此(ci)而(er)得名平行(xing)翼緣(yuan)(yuan)工(gong)(gong)(gong)(gong)(gong)字鋼(gang)。H型(xing)鋼(gang)的(de)(de)腹(fu)板厚度(du)(du)比腹(fu)板同樣(yang)高(gao)的(de)(de)普通工(gong)(gong)(gong)(gong)(gong)字鋼(gang)小，翼緣(yuan)(yuan)寬(kuan)度(du)(du)比腹(fu)板同樣(yang)高(gao)的(de)(de)普通工(gong)(gong)(gong)(gong)(gong)字鋼(gang)大(da)，因此(ci)又得名寬(kuan)緣(yuan)(yuan)工(gong)(gong)(gong)(gong)(gong)字鋼(gang)。由形(xing)狀所決(jue)定(ding)，H型(xing)鋼(gang)的(de)(de)截(jie)面模數(shu)、慣性矩及相(xiang)應的(de)(de)強度(du)(du)均明顯優于(yu)同樣(yang)單重的(de)(de)普通工(gong)(gong)(gong)(gong)(gong)字鋼(gang)。用在不(bu)同要求的(de)(de)金屬(shu)結構(gou)中，不(bu)論是承(cheng)受彎曲力(li)矩、壓力(li)負荷(he)、偏(pian)心負荷(he)都顯示出它的(de)(de)優越性能(neng)，可(ke)(ke)較普通工(gong)(gong)(gong)(gong)(gong)字鋼(gang)大(da)大(da)提高(gao)承(cheng)載能(neng)力(li)，節約金屬(shu)10%～40%。H型(xing)鋼(gang)的(de)(de)翼緣(yuan)(yuan)寬(kuan)、腹(fu)板薄、規格多(duo)、使用靈活，用于(yu)各(ge)種桁架結構(gou)中可(ke)(ke)節約金屬(shu)15%～20%。由于(yu)其翼緣(yuan)(yuan)內外側平行(xing)，緣(yuan)(yuan)端呈直(zhi)角，便于(yu)拼(pin)裝組合成(cheng)各(ge)種構(gou)件，從而(er)可(ke)(ke)節約焊(han)接、鉚接工(gong)(gong)(gong)(gong)(gong)作量25%左右，能(neng)大(da)大(da)加快工(gong)(gong)(gong)(gong)(gong)程的(de)(de)建(jian)設速度(du)(du)，縮短工(gong)(gong)(gong)(gong)(gong)期。

用途：

由(you)于具有上述優點，H型鋼應用廣泛，主(zhu)要(yao)(yao)用于：各(ge)種民用和工(gong)業建筑結構;各(ge)種大(da)跨(kua)度的(de)工(gong)業廠房和現(xian)代(dai)化高(gao)層建筑，尤其是(shi)地(di)(di)震活動(dong)頻繁地(di)(di)區(qu)和高(gao)溫工(gong)作條(tiao)件下的(de)工(gong)業廠房;要(yao)(yao)求(qiu)承(cheng)載能力大(da)、截面穩定性好、跨(kua)度大(da)的(de)大(da)型橋(qiao)梁(liang);重型設備;高(gao)速公(gong)路;艦(jian)船(chuan)骨架;礦山支護;地(di)(di)基處理和堤壩工(gong)程;各(ge)種機器構件。

分類：

H型鋼的產品規格很多，分類方法有以下(xia)幾種(zhong)。

(1)按產品的翼(yi)(yi)緣(yuan)(yuan)(yuan)(yuan)寬(kuan)(kuan)度(du)分為寬(kuan)(kuan)翼(yi)(yi)緣(yuan)(yuan)(yuan)(yuan)、中翼(yi)(yi)緣(yuan)(yuan)(yuan)(yuan)和窄(zhai)翼(yi)(yi)緣(yuan)(yuan)(yuan)(yuan)H型鋼。寬(kuan)(kuan)翼(yi)(yi)緣(yuan)(yuan)(yuan)(yuan)和中翼(yi)(yi)緣(yuan)(yuan)(yuan)(yuan)H型鋼的翼(yi)(yi)緣(yuan)(yuan)(yuan)(yuan)寬(kuan)(kuan)度(du)B大(da)于或(huo)等(deng)于腹板(ban)高(gao)度(du)H。窄(zhai)翼(yi)(yi)緣(yuan)(yuan)(yuan)(yuan)H型鋼的翼(yi)(yi)緣(yuan)(yuan)(yuan)(yuan)寬(kuan)(kuan)度(du)B約等(deng)于腹板(ban)高(gao)度(du)H的二分之一。

(2)按產品(pin)用途分為H型(xing)(xing)(xing)鋼(gang)(gang)(gang)梁(liang)、H型(xing)(xing)(xing)鋼(gang)(gang)(gang)柱、H型(xing)(xing)(xing)鋼(gang)(gang)(gang)樁、極厚翼緣(yuan)H型(xing)(xing)(xing)鋼(gang)(gang)(gang)梁(liang)。有時也將平行腿槽鋼(gang)(gang)(gang)和平行翼緣(yuan)丁字(zi)鋼(gang)(gang)(gang)也列入(ru)H型(xing)(xing)(xing)鋼(gang)(gang)(gang)的范(fan)圍(wei)。一般以窄翼緣(yuan)H型(xing)(xing)(xing)鋼(gang)(gang)(gang)作為梁(liang)材，以寬翼緣(yuan)H型(xing)(xing)(xing)鋼(gang)(gang)(gang)作為柱材，據此又(you)有梁(liang)型(xing)(xing)(xing)H型(xing)(xing)(xing)鋼(gang)(gang)(gang)和柱型(xing)(xing)(xing)H型(xing)(xing)(xing)鋼(gang)(gang)(gang)之(zhi)稱。

(3)按(an)生產方式分為焊(han)接H型鋼和軋制H型鋼。

(4)按尺寸(cun)規格大小分為(wei)(wei)大、中、小號(hao)(hao)H型鋼。通常將(jiang)腹板高度H在700mm以(yi)上的(de)產(chan)品稱(cheng)為(wei)(wei)大號(hao)(hao)、300～700mm的(de)稱(cheng)為(wei)(wei)中號(hao)(hao)，小于(yu)300mm的(de)稱(cheng)為(wei)(wei)小號(hao)(hao)。