灰铸铁的力学性能(摘自GB/T9439—1988)
单铸试棒及铸件预计的力学性能
牌号 | 单铸试棒的力学性能 | 铸件预计的力学性能 | |
抗拉强度σb/MPa | 铸件壁厚/mm | 抗拉强度σb/MPa | |
HT100 | ≥100 | >2.5~10 | ≥130 |
>10~20 | ≥100 | ||
>20~30 | ≥90 | ||
>30~50 | ≥80 | ||
HT150 | ≥150 | >2.5~10 | ≥175 |
>10~20 | ≥145 | ||
>20~30 | ≥130 | ||
>30~50 | ≥120 | ||
HT200 | ≥200 | >2.5~10 | ≥220 |
>10~20 | ≥195 | ||
>20~30 | ≥170 | ||
>30~50 | ≥160 | ||
HT250 | ≥250 | >4.0~10 | ≥270 |
>10~20 | ≥240 | ||
>20~30 | ≥220 | ||
>30~50 | ≥200 | ||
HT300 | ≥300 | >10~20 | ≥290 |
>20~30 | ≥250 | ||
>30~50 | ≥230 | ||
HT350 | ≥350 | >10~20 | ≥340 |
>20~30 | ≥290 | ||
>30~50 | ≥260 | ||
灰铸铁铸件附铸试棒(块)的力学性能
牌号 | 铸件壁厚/mm | 抗拉强度σb(MPa) | ||||
附铸试样 | 附铸试快 | 铸件 (仅供参考) | ||||
f30/mm | f50/mm | R15/mm | R25/mm | |||
HT150 | >20~40 | ≥130 | — | ≥(120) | — | 120 |
>40~80 | ≥115 | ≥(155) | ≥110 | — | 105 | |
>80~150 | — | ≥105 | — | ≥100 | 90 | |
>150~300 | — | ≥100 | — | ≥90 | 80 | |
HT200 | >20~40 | ≥180 | — | ≥(170) | — | 165 |
>40~80 | ≥160 | ≥(155) | ≥150 | — | 145 | |
>80~150 | — | ≥145 | — | ≥140 | 130 | |
>150~300 | — | ≥135 | — | ≥130 | 120 | |
HT250 | >20~40 | ≥220 | — | ≥(210) | — | 205 |
>40~80 | ≥200 | ≥(190) | ≥190 | — | 180 | |
>80~150 | — | 180 | — | ≥170 | 165 | |
>150~300 | — | ≥165 | — | ≥160 | 150 | |
HT300 | >20~40 | ≥260 | — | ≥(250) | — | 245 |
>40~80 | ≥235 | ≥(230) | ≥225 | — | 215 | |
>80~150 | — | ≥215 | — | ≥200 | 195 | |
>150~300 | — | ≥195 | — | ≥185 | 180 | |
HT350 | >20~40 | ≥300 | — | ≥(290) | — | 285 |
>40~80 | ≥270 | ≥(265) | ≥260 | — | 255 | |
>80~150 | — | ≥240 | — | ≥230 | 225 | |
>150~300 | — | ≥215 | — | ≥210 | 205 | |