国外阀门材料常用技术标准 高温承压部件用合金钢锻件、化学成分要求
成分，%
元素牌 号
F1F11，2级和3级F11，1级F12F5AF5AAF9F6F21、1级和3级F22、1级和3级
碳0.20-0.300.10-0.200.05-0.150.10-0.20≤0.15≤0.25≤0.15≤0.120.05-0.150.05-0.15
锰0.60-0.800.30-0.800.30-0.600.30-0.800.30-0.60≤0.600.30-0.60≤1.000.30-0.600.30-0.60
磷，最大0.0250.0250.0250.0250.0250.0250.0250.0250.0250.025
硫，最大0.0250.0250.0250.0250.0250.0250.0250.0250.0250.025
硅0.20-0.350.50-1.000.50-1.000.10-0.60≤0.50≤0.500.50-1.00≤1.00≤0.50≤0.50
镍…………≤0.50≤0.50…≤0.50……
铬…1.00-1.501.00-1.500.80-1.104.0-6.04.0-6.08.0-10.011.5-13.52.7-3.32.00-2.50
钼0.40-0.600.45-0.650.44-0.650.45-0.650.45-0.650.45-0.650.90-1.10…0.80-1.060.90-1.10
元素牌 号
牌号 F91牌号 F911F3VF3VCbF22V
碳0.08-0.120.09-0.130.10-0.150.10-0.150.11-0.15
锰0.30-0.600.30-0.600.30-0.600.30-0.600.30-0.60
磷，最大0.0250.0200.0200.0200.015
硫，最大0.0250.0100.0200.0100.010
硅0.20-0.500.10-0.50≤0.10≤0.10≤0.10
镍≤0.40≤0.40…≤0.25≤0.25
铬8.0-9.58.5-9.52.7-3.32.7-3.32.00-2.50
钼0.85-1.050.90-1.100.90-1.100.90-1.100.90-1.10
钒0.18-0.250.18-0.250.20-0.300.20-0.300.25-0.35
铌0.06-0.100.06-0.10…0.015-0.070≤0.07
氮0.03-0.070.04-0.09………
铝≤0.02B≤0.02B………
硼…0.0003-0.0060.001-0.003…≤0.0020
钨…0.90-1.10………
钛≤0.01B≤0.01B0.015-0.035≤0.015≤0.030
铜………≤0.25≤0.20
钙………0.0005-0.0150≤0.015C
锆≤0.01B≤0.01B………
