锻件用钢化学成分.doc

锻件用钢化学成分（熔炼分析）应符合的规定JB4726-2000钢 号 化 学 成 分 %CSiMnMoCrVNbPSNiCu20 #0.170.230.170.370.601.000.250.0300.0200.250.2516Mn0.130.190.200.601.201.600.300.0300.0200.300.2535 #0.320.380.170.370.500.800.250.0300.0200.250.2515CrMo0.120.180.100.600.300.800.450.650.801.250.0300.0200.300.2535CrMo0.320.380.170.370.400.700.150.250.801.100.0300.0200.300.251Cr5Mo0.150.500.600.450.654.006.000.0300.0200.500.2520MnMo0.170.230.170.371.101.400.200.350.300.0250.0150.300.2520MnMoNb0.170.230.170.371.301.600.450.650.300.0250.0500.0250.0150.300.2514Cr1Mo0.110.170.500.800.300.800.450.651.151.500.0250.0150.300.2512Cr1MoV0.090.150.170.370.400.700.250.350.901.200.150.300.0300.0200.300.2512Cr2Mo10.150.500.300.600.901.102.002.500.0250.0150.300.25 注：对真空碳脱氧钢，允许Si含量小于或等于0.12%钢 号公称厚度mm热处理状态回火温度 拉伸试验冲击试验硬度bMPas MPa5 % 试验温度AKV JHB20 #200N390-54021524203410615916Mn300N ，N+T6004506002752003112117835 #100N510670265182024136200100300N，N+T59049064024518202413019015CrMo300N+TQ+T62044061027520203411818030050043060025520203411517835CrMo300Q+T58062079044015 20341852353005006107804301520341802231Cr5Mo500N+TQ+T68059076039018203417422920MnMo300Q+T60053070037018034156208300500510680350180341362015007004906603301803413019620MnMoNb300Q+T630620790470160341852353005006107804601603418023314Cr1Mo300N+TQ+T62049066029019204113019630050048065028019204112819312Cr1MoV300N+TQ+T680440610255192034118180300500430600245192034115178注：1、根据需方要求，20钢锻件20冲击改作0冲击，冲击功AKV27J 2、当附加保证模拟焊后热处理试样的力学性能时，回火温度可另行规定注：N正火 Q淬火 T回火 A退火 S固溶 各级别的检验项目所按的规定锻件级别检验项目检验数量硬度（HB）逐件检查拉伸和冲击（b、s、5、AKV）同冶炼炉号、同炉热处理的锻件组成一批、每批抽检一件拉伸和冲击（b、s、5、AKV）超声检测逐件检查拉伸和冲击（b、s、5、AKV）逐件检查超声检测逐件检查超声波检测验收标准(各材质均按此标准)锻件分类超声检测合格等级单个缺陷底波降低量密集区缺陷筒形锻件用于筒节用于筒件端部法兰环形锻件饼形锻件公称厚度200mm公称厚度200mm碗形锻件长颈法兰锻件条形锻件注：根据需方要求，对锻件重要区可提高合格等级。锻件高温屈服强度值应符合的规定钢 号公称厚度mm在下列温度（）下的0.2（s），Mpa 20025030035040045050020MnMo300305295285275260240-300500290280270260245225-500700280270260250235215-20MnMoNb300405395385370355335-300500405395385370355335-15CrMo30022021019618617616716230050020019017616715715214735CrMo300370360350335320295-300500370360350335320295-12Cr1MoV30020019017616715715214230050020019017616715715214214Cr1Mo30024023022021020019017530050023022021020019018017012Cr2Mo1300260255250245240230215300500255250245240235225215JB4727-2000钢 号化 学 成 分 % CSiMnMoCrNiVNbAlsPSCu16MnD0.130.180.200.601.201.600.300.400.0300.0150.0250.0150.2520MnMoD0.160.220.170.371.101.400.200.350.300.400.0150.0250.0150.2508MnNiCrMoVD0.100.200.401.101.400.200.500.200.601.201.600.020.060.0200.0150.2510Ni3MoVD0.080.120.150.250.700.900.200.300.302.503.000.020.060.0150.0150.2509MnNiD0.120.150.351.201.600.300.450.850.0500.0150.0200.0150.25 注：1、对真空碳脱氧钢，允许Si含量小于或等于0.12% 2、08MnNiCrMoVD钢的焊接冷裂纹敏感性组成Pcm0.25% Pcm=C+Si/30+Mn/20+Cu/20+Cr/20+Ni/60+Mo/15+V/10+5B(%)钢 号公称厚度热处理状态回火温度 拉伸试验冲击试验bMPas MPa5 % 试验温度Akv J16MnD300Q+T60045060027520-402720MnMoD300Q+T60053070037018-4027300500510680350-30500700490660330-3008MnNiCrMoVD300Q+T60060077048017-404710Ni3MoVD300Q+T60060077048017-504709MnNiD300Q+T60042057026023-7047各级别的检验项目所按的规定锻件级别检验项目检验数量拉伸和冲击（b、s、5、AKV）同冶炼炉号、同炉热处理的锻件组成一批、每批抽检一件拉伸和冲击（b、s、5、AKV）超声检测逐件检查拉伸和冲击（b、s、5、AKV）逐件检查超声检测逐件检查JB4728-2000类 型钢 号化 学 成 分 %CSiMnCrNiMoTiPS铁素体型0Cr130.081.001.0011.5013.500.600.0350.030奥氏体型3040Cr18Ni90.071.002.0017.0019.008.0011.000.0350.030314L00Cr19Ni100.031.002.0018.0020.008.0012.000.0350.0303160Cr17Ni12Mo20.081.002.0016.0018.0010.0014.002.003.000.0350.030316L00Cr17Ni14Mo20.031.002.0016.0018.0012.0015.002.003.000.0350.03018-81Cr18Ni9Ti0.121.002.0017.0019.008.0011.005(C%0.02)0.800.0350.0303210Cr18Ni10Ti0.081.002.0017.0019.009.0012.005C%0.0350.0300Cr18Ni12Mo2Ti0.081.002.0016.0019.0011.0014.001.802.505C%0.700.0350.030奥氏体铁素体型00Cr18Ni5Mo3Si20.031.302.001.002.0018.0019.504.505.502.503.000.0300.020 注：1、1Cr18Ni9Ti钢不推荐使用 2、00Cr18Ni5Mo3Si2钢中N0.10%钢 号公称厚度mm热处理状态bMPa0.2Mpa5 %HB硬度抗拉 屈服 延伸0Cr13100A（800900缓冷）410205201101830Cr18Ni9100S （10101150 快冷）520205351391871002004902053513118700Cr19Ni10100S （10101150 快冷）48017535128187100200450175351211870Cr17Ni12Mo2100S （10101150 快冷）520205351391871002004902053513118700Cr17Ni14Mo2100S （10101150 快冷）48017535128187100200450175351211871Cr18Ni9Ti100S （9201150快冷）52020535139187100200490205351311870Cr18Ni10Ti100S （9201150快冷）52020535139187100200490205351311870Cr18Ni12Mo2Ti100S （10501100快冷）520205351391871002004902053513118700Cr18Ni5Mo3Si2100S （9501050快冷）59039020175235各级别的检验项目所按的规定锻件级别检验项目检验数量硬度（HB）逐件检查拉伸（b、0.2、5）同冶炼炉号、同炉热处理的锻件组成一批、每批抽检一件拉伸（b、0.2、5）超声检测逐件检查拉伸（b、0.2、5）逐件检查超声检测逐件检查压力容器用钢板(GB6654-1996)牌号化学成分，%（m/m）CMnSiVMoNbNCrNiSP不大于20R0.200.400.900.150.300.0200.03016MnR0.201.201.600.200.550.0200.030牌 号交货状态钢板厚度mm拉 伸 试 验冲击试验冷弯试验抗拉强度bMPa屈服点sMPa伸长率5 %温度V型冲击功Akv (横向) Jb=2a180不小于不小于20R热轧、控轧式正火616163636606010040052024523522520525027d=2a3905102416MnR616163636606010010012051064049062047060046059045058034532530528527521031d=2ad=3a20注：厚度大于60mm的20R，锰含量上限可以提高到1.00%。 铬、镍、铜含量当作为残余元素时应各不大于0.30%，其总含量不大于0.60%，供方如能保证，可不做分析。 为改善20R、16MnR的性能，可添加微量合金元素。20g：Mn含量0.500.90，其它与20#相同。制造标准：GB713-1997GB/T8162-1999 结构钢GB/T8163-1999 流体钢GB3087-1999 中低压锅炉管GB5310-1995 高压锅炉管GB6479-2000 化肥专用管GB9948-88 石油裂化管GB713-1997 锅炉用钢板GB/T14976-2002 流体不锈钢管GB/T3274-1988GB3531-1996结 构 用 钢（含机械结构用钢）GB700-88牌号等级化 学 成 分 %脱氧方式CMnSiSP不 大 于Q235AB0.140.220.120.200.300.650.300.700.300.0500.0450.045F、b、zCD0.180.170.350.800.0400.0350.0400.035zTZ 注：Q2