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[1]。其化學(xué)成分含碳≤0.20%、錳≤1.60%，分為普通精度（A級(jí)）與較高精度（B級(jí)） [1]。產(chǎn)品規(guī)格覆蓋厚度2.0-14.0mm、寬度1000-2000mm，表面經(jīng)酸洗處理，質(zhì)量等級(jí)分為允許輕微缺陷的FA級(jí)和僅限局部瑕疵的FB級(jí) [5]。板材可通過控制軋制或涂油工藝保持三個(gè)月防銹期，滿足不同加工需求 [4]。中文名用 途汽車用大梁鋼板屈 服≥355MPa抗 拉510～630MPa目錄1主要區(qū)別2相關(guān)產(chǎn)品信息3化學(xué)成分4表面分類主要區(qū)別播報(bào)編輯參見GB-T 3273-2005 汽車大梁用熱軋鋼板和鋼帶A應(yīng)為普通精度，B為較高精度。相關(guān)產(chǎn)品信息播報(bào)編輯產(chǎn)品名稱： 汽車大梁板 2.5*1000*2000 寶鋼 汽車大梁板 2.5*1000*4000 寶鋼 汽車大梁板 2.0*1000*2000 寶鋼 汽車大梁板 2.5*1000*2000 寶鋼 汽車大梁板 2.5*1250*C 梅鋼 汽車大梁板 3*1250*C 梅鋼 汽車大梁板 3*1250*2500 寶鋼 汽車大梁板 3.5*1250*C 梅鋼 汽車大梁板 4*1250*C 梅鋼 汽車大梁板 4.0*1500*6000 梅鋼 汽車大梁板 4*1650*8000 B520JJ 寶鋼 汽車大梁板 5*1250*C 梅鋼 汽車大梁板 5*1450*C B550L 寶鋼 汽車大梁板 5*1500*6000 寶鋼 汽車大梁板 5.5*1250*C 寶鋼 汽車大梁板 6*1250*C 梅鋼/武鋼汽車大梁板 6*1500*6000 寶鋼/武鋼汽車大梁板 7*1500*C 寶鋼/馬鋼 汽車大梁板 8*1450*C B550L 寶鋼/馬鋼 汽車大梁板 10*1250*C 梅鋼化學(xué)成分播報(bào)編輯C ≤0.20Si ≤0.50MN ≤1.60伸長(zhǎng) ≥24表面分類播報(bào)編輯普通級(jí)表面（FA） 酸洗表面表面允許有深度（或高度）不超過鋼板厚度公差之半的麻點(diǎn)、凹面、劃痕等輕微、局部的缺欠，但應(yīng)保證鋼板及鋼帶允許的最小厚度。較高級(jí)表面（FB） 酸洗表面表面允許有不影響成型性的局部缺欠，如輕微劃傷、輕微壓痕、輕微麻點(diǎn)、輕微輥印及色差等新手上路成長(zhǎng)任務(wù)編輯入門編輯規(guī)則本人編輯我有疑問內(nèi)容質(zhì)疑在線客服官方貼吧意見反饋投訴建議舉報(bào)不良信息未通過詞條申訴投訴侵權(quán)信息封禁查詢與解封?2025?Baidu?使用百度前必讀?|?百科協(xié)議?|?隱私政策?|?百度百科合作平臺(tái)?|?京ICP證030173號(hào)?京公網(wǎng)安備11000002000001號(hào)window.PAGE_DATA= 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