不銹鋼和耐熱鋼冷扎鋼帶(GBT42391991)

1、不銹鋼和耐熱鋼冷扎鋼帶(GB/T4239-1991)展金屬材料有限公司技術(shù)部尺寸規(guī)格鋼帶厚度為030mm、040mm、050mm、060mm、070mm、O80mm、090mm、100mm、120mm、150mm、200mm50mm、350mm。允許偏差見表5-214-表5-217。表5-214寬度不大于600mm鋼帶的厚度允許偏差(mm)厚度寬度201501502502504004006000.05O.10土O.0100.0100.0100.10O.15士O.010O.0100.010O.150.25+O.010-O.020+0.0IO-O.020+O.OlO-O.020O.020O.250

2、.45O.020O.020O.020+O.020-O.030O.45O.65+0.020-O.030+0.020-O.030+0.020-O.030O.030O.650.90O.030O.030O.030-0.040O.040O.901.20+0.030O.0400.0400.040+0.040-0.0501.201.50+O.040-0.050O.050O.050+0.050O.0601.501.800.060+0.060-0.070+O.060-0.0700.0701.802.00O.060O.070+0.070-O.080O.0802.00-2.300.0700.080+O.08-0.0

3、90.0902.302.50O.070O.080+O.08-0.090.0902.503.10O.0800.090+0.09O.10O.1003.106001000600寬度6001000600厚度100012501250厚度1000125012500.050.101.201.500.O60O.070O.110O.100.151.501.800.070O.080O.1200.15O.251.802.00O.0900.100O.130O.250.45O.040O.0400.0402.002.300.1000.110O.140O.450.65O.040O.040O.0502.302.50O.100

4、O.110O.140O.65O.90O.050O.050O.0602.SO3.100.110O.1200.160O.901.200.050O.060O.0803.1050150150250250400400600600100010001250切邊鋼帶+1.OO+2.00+3.O0+4.OO+5O+50+5O不切邊鋼帶+2-l+3-2+6-2+7-3+20O+25O+300表5-217切邊鋼帶寬度高級精度（K）的允許偏差（mm）厚度寬度201501502502504004006006001000O.050.500.15O.200.25士O.300.50O.501.00O.20O.25O.25士O

5、.30O.501.001.50O.200.30O.30士O.400.601.502.500.25士0.35O.350.50O.702.504.00O.300.40O.40O.50O.80牌號和化學成分鋼的類別、牌號及其相應化學成分所參見的標準見表5-218。列于本標準牌號的化學成分見表5-219。交貨狀態(tài)鋼帶冷軋后應進行相應的熱處理（固溶、退火、淬火回火、時效等），并進行酸洗（光亮處理除外）或類似處理。對于沉淀硬化型鋼帶，需方應指明或試樣的熱處理種類。）力學和工藝性能經(jīng)固溶處理的奧氏體型鋼帶，除表5-220所列幾種牌號外，其余牌號鋼的力學性能和相應固溶處理制度均與GB/T4237不銹鋼熱軋鋼規(guī)

6、定者相同，但其中0Crl9Nil2M02Cu2、00Crl8Ni14M02Cu2、0Crl9Nil3M03、OOCrl9Ni13M03和0Crl8Nil6M05牌號鋼的伸長率均分別不小于，1Crl8Ni9Ti鋼的抗拉強度不小于540MPa，1Crl8Ni9Ti鋼的固溶處理制度為10001080C快冷。表5-218牌號和化學成分參見標準牌號化學成分所在標準號牌號化學成分所在標準號奧氏體型OCrl8Ni10TiGB/T12201Crl7Mn6Ni5NCB/T1220OCr18NillNb1Cr18Mnl8Ni5NOCr18Ni13Si4奧氏體.鐵素體型2Crl3Mn9Ni4本標準OCr26Ni5M

7、02GB/T12201Crl7Ni7GB/T122000Cr24NiM03N本標準ICrl7Ni8本標準鐵素體型1CrI8Ni9CB/T1220OCrI3AIGB/TI220ICrl8Ni9Si3本標準00CrI2OCrI8Ni9GB/T12201CrI500Cr19Ni10ICrI7OCrI9Ni9N00Cr17本標準OCrI9NiI0NbN1Cr17MoGB/T122000CrI8NiION00Cr17M01CrI8Ni1200CrI8M02OCr23NiI300Cr30Mo2OCr25Ni20OOCr27Mo0Cr17Ni12M02馬氏體型00Cr17NiI4M02ICrI2GB/T12

8、200CrI7Ni12M02NOCrI300CrI7NiI3M02NICrI30Crl8Nil2M02Cu22CrI300Crl8Ni14Mo2Cu23CrI30CrI9NiI3M033CrI6本標準00CrI9NiI3M037CrI7GB/T1220OCrI8NiI6M05沉淀硬化(1Crl8Ni9Ti)OCrI7Ni7AIGB/T1220的牌號鋼與GB/T1220中規(guī)定者相同，但錳含量均為不大于2.50%。表5-219列于本標準牌號的化學成分牌號化學成分（質(zhì)量分數(shù)）（）CSiMnPSNiCr其他2Cr13MnI9Ni4O.15O.251.008.0010.oo0.0600.0303.705

9、.0012.0014.001Cr17Ni8O.08O.121.002.00O.035O.0307.009.0016.0018.00ICrI8Ni9Si30.152.003.002.000.035O.0308.00IO.0017.0019.0000CrI7O.0300.751.00O.0350.03016.0019.00Ti或NbO.101.003Cr160.251.001.00O.0350.03015.00O.4017.00ooCr24Ni6M03N0.031.00硬度HRBHV2Cr13Mn9Ni41000150快冷590401Crl7Ni810101150快冷2055704590200OC

10、rl8Ni910101150快冷205520409020000Crl9Nil010101150快冷1754804090200OCrl8Nil0Ti9201150快冷2055204090200他力學性能見表5-221表5-224。表5-221不同冷作硬化狀態(tài)鋼帶的力學性能牌號狀態(tài)符號拉力試驗屈服強度6o.2/MPa抗拉強度6b/MPa伸長率65(%)厚度0.40.8厚度O.82Crl3Mn9Ni4BY785202020Y980151515TY11308881Crl7Ni7DY510865252525BY755103091010Y9301205357TY96012753451Crl8Ni9BY785202020Y98010lO10TY1130555ICrl8Ni9TiBY735202020Y885777表5-222經(jīng)固溶處理的奧氏體-鐵索體型鋼帶的力學性能牌號固溶處理溫度/C拉力試驗硬度屈服強度6O.2/MPa抗拉強度6b/MPa伸長率65(%)HRCHV抗拉強度6b/MPa伸長率65(%)HRBHVHRBHV1Crl22054402093210d=2a0Crl32054102088200d=2a1Crl32054402093210d=2a2Crl322552018972343Crl32255