autoform材料庫寶鋼-鋼坯bqb

1、頁碼，1/7=寶山鋼鐵企業(yè)標(biāo)準(zhǔn)Q/BQB 110-2003軋制方坯 代替Q/BQB 110-19991 范圍本標(biāo)準(zhǔn)規(guī)定了初軋方坯和熱軋方坯的尺寸、外形、重量及允許偏差、技術(shù)要求、檢驗與試志及質(zhì)量證明書等。本標(biāo)準(zhǔn)適用于寶山鋼鐵生產(chǎn)的供再軋或鍛造用的初軋方坯和熱軋方坯。2 規(guī)范性文件下列文件中的條款通過本標(biāo)準(zhǔn)的而成為本標(biāo)準(zhǔn)的條款。凡是注日期的文件，其隨單（不包括勘誤的內(nèi)容）或修訂版均不適用于本標(biāo)準(zhǔn)，然而，鼓勵根據(jù)本標(biāo)準(zhǔn)達成協(xié)議的可使用這些文件的版本。凡是不注日期的文件，其版本適用于本標(biāo)準(zhǔn)。GB/T 222GB/T 223鋼的化學(xué)分析用試樣取樣法及成品化學(xué)成分允許偏差鋼鐵及合金化學(xué)分析方法鋼的低倍組

2、織及缺陷酸蝕試驗法GB/T 226GB/T 1979 結(jié)構(gòu)鋼低倍組織缺陷圖尺寸、外形、重量及允許偏差尺寸及允許偏差方坯的截面尺寸及允許偏差應(yīng)符合表1的規(guī)定。表1 mm邊長邊長允許偏差對角線長度差圓角半徑90+2.5-1.53.0 12100+2.5-2.03.5 15120+3.5-2.04.0 18130134+4-24.5 20140200210225 2302506930注：圓角半徑孔型設(shè)計用3.1.2 方坯的通常長度為2m19m。方坯也可按定尺和倍尺長度交貨，其長度應(yīng)在通常長允許偏差為70mm。外形方坯的每米彎曲度不應(yīng)超過：方坯邊長 140mm.15mm方坯邊長 200mm.20mm方

3、坯端部因剪切變形而造成的局部寬展不得大于邊長的10。方坯不得有顯著的扭轉(zhuǎn)。方坯在最大凹入處的寬度不得超過邊長的允許偏差。3.3 重量方坯按實際重量交貨。技術(shù)要求牌號及化學(xué)成分鋼的牌號及化學(xué)成分(除焊條及焊絲用鋼為方坯成品成分外，其余均為熔煉成分)應(yīng)定。4.1.2 除焊絲用鋼方坯外，冶煉方法鋼由氧氣轉(zhuǎn)爐冶煉。交貨狀態(tài)鋼方坯的成品化學(xué)成分允許偏差應(yīng)符合GB/T 222的規(guī)定。file:/C: PDF 文件使用 pds%20and%20Settingschenfei桌面寶鋼標(biāo)準(zhǔn)鋼坯BQB. ctory Pro 試用版本創(chuàng)建 n2006-8-2471035頁碼，2/7方坯以熱軋狀態(tài)交貨。表2file:

4、/C: PDF 文件使用 pds%20and%20Settingschenfei桌面寶鋼標(biāo)準(zhǔn)鋼坯BQB. ctory Pro 試用版本創(chuàng)建 n2006-8-24分類牌號脫氧 方式SWRH32GSWRH42AGSWRH42BGSWRH47AGSWRH47BGSWRH52AGSWRH52BGSWRH57AGSWRH57BG高 碳SWRH62AG鋼SWRH62BGSWRH67AGSWRH67BGSWRH72AGSWRH72BGSWRH77AGSWRH77BGSWRH82AGSWRH82BGSWRH82B-G 1化學(xué)成分CSiMnPS 0.290.150.300.360.350.600.030 0.0

5、300.390.150.300.460.350.600.030 0.0300.390.150.600.460.350.900.030 0.0300.440.150.300.510.350.600.030 0.0300.440.150.600.510.350.900.030 0.0300.490.150.300.560.350.600.030 0.0300.490.150.600.560.350.600.030 0.0300.540.150.300.610.350.600.030 0.0300.540.150.600.610.350.900.030 0.0300.590.150.300.660.

6、350.600.030 0.0300.590.150.600.660.350.900.030 0.0300.640.150.300.710.350.600.030 0.0300.640.150.600.710.350.900.030 0.0300.690.150.300.760.350.600.030 0.0300.690.150.600.760.350.900.030 0.0300.740.150.300.810.350.600.030 0.0300.740.150.600.810.350.900.030 0.0300.790.150.300.860.350.600.030 0.0300.7

7、90.150.600.860.350.900.030 0.0300.790.150.600.860.350.900.025 0.025CSWRM6C0.080.030.60頁碼，3/70.0350.0350.0350.0350.0350.0350.0350.0350.0350.0350.0350.0350.0350.035SWRM8C0.100.080.130.100.150.130.180.150.200.180.230.030.600.300.600.300.600.300.600.300.600.300.60SWRM10C0.03低 碳鋼SWRM12C0.03SWRM15C0.03SWR

8、M17C0.03SWRM20C0.03表2（續(xù)）化學(xué)成分脫氧方式分類牌號CSiMnPS其他0.080.130.130.180.180.230.220.280.270.330.320.380.350.410.370.430.420.480.470.530.170.240.330.380.120.190.320.380.100.350.100.350.100.350.100.350.100.350.100.350.100.350.100.350.100.350.100.350.30 0.150.350.07 0.050.200.300.600.300.600.300.600.300.600.600

9、.900.600.900.600.900.600.900.600.900.600.901.301.600.600.850.300.600.300.600.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0350.0350.0350.0350.0350.0350.0350.0350.0350.0350.0300.0300.0300.030SWRCH10KGSWRCH15KGSWRCH20KGSWRCH25KGSWRCH30KGSWRCH35KGSWRCH38KG冷 鐓鋼SWRCH40KGSWRCH45KG

10、SWRCH50KGTi:0.040.100.003Cr:0.901.200.30Alt0.ML20MnTiBGSCM435GML15AlAML35Gfile:/C: PDF 文件使用 pds%20and%20Settingschenfei桌面寶鋼標(biāo)準(zhǔn)鋼坯BQB. ctory Pro 試用版本創(chuàng)建 n2006-8-24頁碼，4/70.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0250.0350.0300.0300.0300.0300.0200.0350.0350.0350.0350.0350.0350.035

11、0.0350.0350.0350.0350.0300.0300.0300.0350.0350.0300.0300.0300.0300.0230.035Alt0. Alt0.Alt0. Alt0. Alt0. Alt0. Alt0. Alt0. Alt0.Alt0.SWRCH6AA0.080.100.60SWRCH8AA0.100.080.130.100.150.130.180.130.180.150.200.150.200.180.230.180.230.270.350.270.350.270.350.060.150.120.100.600.300.600.300.600.300.600.60

12、0.900.600.900.701.000.300.600.701.000.701.000.650.950.901.301.401.851.501.901.802.200.801.101.802.101.401.600.350.650.200.50SWRCH10AA0.10SWRCH12AA0.10SWRCH15AA0.10SWRCH16AA0.10SWRCH18AA0.10SWRCH19AA0.10SWRCH20AA0.10SWRCH22AA0.100.200.501.551.850.600.900.801.150.05B30MnBGCu0.20 B: 0.PC棒鋼用B30Si2MnGCu0

13、.B30MnSiGCu0.ER70S-6GH10Mn2BH10Mn2G0.170.05Ni0.30焊用絲鋼H08MnA0.100.050.700.950.25H08Mn2SiAG0.11Mo: 0.300.600.08 B：0.00BH08MnMoTiBG0.11焊條用鋼鋼用SWRY11C0.090.03Cu0.Cu：0.10 CrNi：0B04XW0.060.05表2（續(xù)）file:/C: PDF 文件使用 pds%20and%20Settingschenfei桌面寶鋼標(biāo)準(zhǔn)鋼坯BQB. ctory Pro 試用版本創(chuàng)建 n2006-8-24分類牌號脫氧方式化學(xué)成分CSiMnPS其0.511.

14、400.60Cr:0.60頁碼，5/7B55SiCr60Si2MnA0.590.560.640.560.640.620.700.080.130.130.180.180.230.220.280.270.330.320.380.370.430.420.480.470.530.521.601.602.001.401.800.170.350.150.350.150.350.150.350.150.350.150.350.150.350.150.350.150.350.150.350.150.800.600.900.400.700.901.200.300.600.300.600.300.600.300.

15、600.600.900.600.900.600.900.600.900.600.900.600.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0350.0350.0350.0350.0350.0350.0350.0350.0350.0350.25 CCr0.35Cu彈簧鋼Cr：0.700.35 C60Si2CrA65MnGCu0.30Ni+CrS10CGS15CGS20CGS25CGS30CG機 械 結(jié) 構(gòu)用 碳 素 鋼S35CGS40CGS45CGS50CGS

16、55CG0.580.350.90注：脫氧方式代號：C壓蓋鋼式由供方確定A鋁鋼G鋁硅鋼，若需方無特別指定，4.4 低倍組織除焊條用鋼及低碳鋼方坯外，方坯應(yīng)進行低倍組織檢查。在其酸浸低倍試片上不得有肉眼白點、裂縫、翻皮、夾雜、殘余縮孔。按GB/T 1979進行一般疏松 3級； 中心疏松 3級； 偏析 3級4.5 表面質(zhì)量的合格級別為:4.5.14.5.2方坯端面不得有縮孔、氣囊、分層和尾孔。方坯表面不得有裂縫、結(jié)疤、夾雜、折疊、拉裂和耳子。4.5.3方坯表面允許存在劃痕、輥痕、凹坑、麻點的最大深度為：邊長140mm時2mm；邊3mm，方坯表面允許存在發(fā)紋的最大深度為：邊長140mm時1mm；邊長2

17、00mm時2mm。4.5.4 方坯表面缺陷允許清除。處應(yīng)圓滑無棱角，角部后的斜度應(yīng)在45以下，同一截面上）不得大于邊長的10，寬度不得小于深度的五倍。4.6 根據(jù)需方要求，經(jīng)供需雙方商定，可補充進行其他檢驗項目，其技術(shù)指標(biāo)由雙方協(xié)議檢驗與試驗尺寸和外形檢查方坯的尺寸和外形應(yīng)采用合適的量具逐根進量。5.1.2 邊長測量：用測量工具在距方坯端部不小于150mm處沿方坯長度的垂直方向進file:/C: PDF 文件使用 pds%20and%20Settingschenfei桌面寶鋼標(biāo)準(zhǔn)鋼坯BQB. ctory Pro 試用版本創(chuàng)建 n2006-8-24頁碼，6/7尺寸為邊長值。5.1.3 長度測量：

18、沿方坯側(cè)面中心線測量方坯二端面間的距離為方坯實際長度。方坯的表面質(zhì)量用肉眼逐根進行檢查。每批方坯的檢驗項目、取樣數(shù)量、取樣方法和試驗方法應(yīng)符合表3的規(guī)定。表3序號12檢驗項目化學(xué)成分低倍組織取樣數(shù)量1/爐2取樣方法GB/T 222相當(dāng)于鋼錠頭部的不同根坯試驗方GB/T 2GB/T226、GB組批規(guī)則方坯應(yīng)成批檢驗和驗收。壓蓋鋼方坯由同牌號、同截面尺寸的產(chǎn)品組批，號、同截面尺寸的產(chǎn)品組批。復(fù)驗與判定規(guī)則鋼方坯由同某項試驗結(jié)果不符合標(biāo)準(zhǔn)要求，則可從同批中再取雙倍試樣進行該不合格項目的復(fù)驗不得復(fù)驗)。復(fù)驗結(jié)果若不合格，則整批不得交貨。包裝、標(biāo)志和質(zhì)量證明書包裝邊長140mm的方坯用包裝鋼帶捆扎交貨，邊長200mm的方坯不捆扎，逐根交貨。標(biāo)志邊長140mm成捆交貨的方坯在每根方坯頭標(biāo)明爐號，并在每捆中二根方坯的尾端標(biāo)明牌長200mm的方坯在每根坯的一端標(biāo)明牌號，另一端標(biāo)明爐號和鋼坯段號；規(guī)定進行低倍相當(dāng)鋼錠頭部的方坯端面標(biāo)明“T”。質(zhì)量證明書每批交