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工(gong)字鋼也稱(cheng)為鋼梁（英文名稱(cheng) Universal Beam)，是(shi)截(jie)面為工(gong)字形(xing)狀的長條鋼材(cai)。工(gong)字鋼分(fen)普通工(gong)字鋼和(he)輕(qing)型工(gong)字鋼。是(shi)截(jie)面形(xing)狀為工(gong)字型的型鋼。

工(gong)(gong)(gong)字(zi)(zi)(zi)鋼(gang)主要分(fen)為(wei)普(pu)通工(gong)(gong)(gong)字(zi)(zi)(zi)鋼(gang)、輕型(xing)工(gong)(gong)(gong)字(zi)(zi)(zi)鋼(gang)和(he)寬(kuan)翼緣(yuan)(yuan)工(gong)(gong)(gong)字(zi)(zi)(zi)鋼(gang)。按翼緣(yuan)(yuan)與腹(fu)板(ban)高(gao)度(du)(du) 比又分(fen)為(wei)寬(kuan)幅、中(zhong)幅、窄(zhai)幅寬(kuan)翼緣(yuan)(yuan)工(gong)(gong)(gong)字(zi)(zi)(zi)鋼(gang)。前二者生產的規(gui)格為(wei)10—60號(hao)，即 相(xiang)應(ying)的高(gao)度(du)(du)為(wei)10 cm—60 cm。在相(xiang)同高(gao)度(du)(du)下，輕型(xing)工(gong)(gong)(gong)字(zi)(zi)(zi)鋼(gang)翼緣(yuan)(yuan)窄(zhai)、腹(fu)板(ban)薄(bo)、重 量輕。寬(kuan)翼緣(yuan)(yuan)工(gong)(gong)(gong)字(zi)(zi)(zi)鋼(gang)又稱H型(xing)鋼(gang)，斷面特(te)點是兩腿(tui)平(ping)行，且腿(tui)內側沒(mei)有(you)斜度(du)(du)。 它屬于經濟斷面型(xing)鋼(gang)，是在四輥萬能(neng)軋機上(shang)軋制的，所以又稱“萬能(neng)工(gong)(gong)(gong)字(zi)(zi)(zi)鋼(gang)”。普(pu)通工(gong)(gong)(gong)字(zi)(zi)(zi)鋼(gang)、輕型(xing)工(gong)(gong)(gong)字(zi)(zi)(zi)鋼(gang)已經形成國(guo)家標準(zhun)。

山東信誠飛宇(yu)金屬材(cai)料(liao)有限公司(si)在制造工(gong)藝、設(she)備裝備。檢測手段(duan)。計(ji)量能力等(deng)方面(mian)均達(da)國內領先水平，為(wei)產(chan)品提(ti)供可靠地質量保證。并獲得(de)中華人民共和國交通部頒(ban)發(fa)的“全(quan)國質量管理達(da)標證書(shu)”，“交通工(gong)程批(pi)量制造合格(ge)證書(shu)”及“省級重合同守信用企業(ye)”、“縣先進企業(ye)”等(deng)多種(zhong)榮譽稱號(hao)。