類(lèi)別:合結鋼牌號:40CrMnMo合結鋼鋼廠(chǎng):寶鋼、東北特鋼、撫順特鋼、大冶鋼廠(chǎng)
合金結構鋼又稱(chēng)合結鋼,是在碳素結構基礎上,加入5以下的一種或幾種元素。鋼中加入合金元素,首先是提高了鋼的淬透性,保證鋼經(jīng)過(guò)熱處理后獲得良好的綜合機械性能,具有高的強度和足夠的韌性。由于具有合適的淬透性,經(jīng)適宜的金屬熱處理后,顯微組織為均勻的索氏體、貝氏體或極細的珠光體,因而具有較高的抗拉強度和屈強比(一般在0.85左右),較高的韌性和疲勞強度,和較低的韌性-脆性轉變溫度,可用于制造截面尺寸較大的機器零件。
中外牌號對照表 |
項目 | 中國 | 日本 | 德國 | 美國 | ||
GB,YB | JIS | DIN(W-Nr.) | ASTM | AISI | SAE | |
09Mn2 | ||||||
(1) | 10Mn2 | 1513 | 1513 | |||
15Mn2 | ||||||
20Mn2 | SMn420 | 1024 | 1024 | 1524 | ||
30Mn2 | SMn433(SMn1) | 28Mn6 (1.5065) | 1330 | 1330 | 1330 | |
35Mn2 | SMn438(SMn2) | 36Mn5 (1.5067) | 1335 | 1335 | 1335 | |
40Mn2 | Smn443 (SMn3) | 1340 | 1340 | 1340 | ||
45Mn2 | Smn443 (SMn3) | 1345 | 1345 | 1345 | ||
50Mn2 | 1052 | 1052 | 1552(-1052) | |||
(2) | 27SiMn | |||||
35SiMn | 37MnSi5 (1.5122) | |||||
42SiMn | 46MnSi4 (1.5121) | |||||
15MnV | 15MnV5 (1.5213) | |||||
(3) | 42Mn2V | 42MnVT (1.5223) | ||||
(4)鉻鋼組 | 15Cr | SCr41(SCr21) | 5115 | 5115 | ||
20Cr | SCr240(SCr22) | 5120 | 5120 | 5120 | ||
30Cr | SCr430(SCr2 ) | 51,305,132 | 51,305,132 | 51,305,132 | ||
35Cr | SCr435(SCr3 ) | 34Cr4 (1.7033) | 5135 | 5135 | 5135 | |
40Cr | SCr440(SCr4) | 41Cr4 (1.7035) | 5140 | 5140 | 5140 | |
45Cr | SCr445(SCr5) | 51,475,145 | 51,475,145 | 51,475,145 | ||
50Cr | 5150 | 5150 | 5150 | |||
(5) | 38CrSi | |||||
40CrSi | ||||||
(6) | 38CrMn | |||||
15CrMn | 20MnCr4 (1.7147) | |||||
40CrMn | ||||||
20CrMnSi | ||||||
(7) | 25CrMnSi | |||||
30CrMnSi | ||||||
35CrMnSi | ||||||
(8) | 20CrV | 22CrV4 (1.7513) | ||||
40CrV | 42CrV6 (1.7561) | |||||
50CrV | SUF10 | 50CrV4 (1.8159) | 6150 | 6150 | 6150 | |
(9) | 30CrMnTi | |||||
(10) | 16Mo | 15Mo3N (1.5415) | ||||
(11) | 12CrMo | 13CrMo44 (1.7335) | ||||
15CrMo | SCM415 (SCM21) | 16CrMo44 (1.7337) | A387Cr | |||
20CrMo | SCM420 (SCM22) | 25CrMo4 | ||||
30CrMo | SCM430 (SCM2) | 34CrMo4 (1.7220) | 4130 | 4130 | 4130 | |
35CrMo | SCM435 (SCM3) | 34CrMo4 (1.7220) | 4135 | 4135 | 4135 | |
42CrMo | SCM440 (SCM4) | 42CrMo4 (1.7225) | 4140 | 4140 | 4140 | |
SCM421 (SCM23) | ||||||
SCM418 | 4118 | 4118 | 4118 | |||
SCM445 (SCM5) | 50CrMo4 (1.7228) | 4145 | 4145 | 4145 | ||
SCM822 (SCM24) | 25CrMo4(1.7218) | |||||
38CrMoAl | SACM645 (SACM1) | 34CrAlMo5(1.8507) | ||||
(12) | 15CrMnMo | 15CrMo5 (1.7262) | ||||
20CrMnMo | 20CrMo5 (1.7264) | |||||
40CrMnMo | 4140 | 4140 | 4140 | |||
(13) | 12CrMoV | 24CrMoV55 | ||||
12Cr1MoV | ||||||
24CrMoV | ||||||
35CrMoV | ||||||
12CrNi2 | SNC415 (SNC21) | |||||
(14) 鉻鉬鋼組 | 12CrNi3A | SNC815 | 14NiCr10 | -3415 | ||
(SNC22) | ||||||
12Cr2Ni4A | (E3310), | (3310), | ||||
(E3316) | 3316 | |||||
20CrNi | -3120 | -3120 | ||||
20CrNi3A | ||||||
20Cr2Ni4A | -3325 | |||||
30CrNi3A | SNC631 (SNC2) | -3435 | ||||
37CrNi3A | SNC836 (SNC3) | -3335 | ||||
40CrNi | SNC236 (SNC1) | -3140 | -3140 | |||
45CrNi | (A3145) | -3145 | ||||
(15) | 40CrNiMoA | SNCM439 (SNCM8) | 4340 | 4340, -4337 | 43,404,337 | |
SNCM220 (SNCM21) | 8620 | 8620 | 8620 | |||
SNCM240 (SNCM6) | 8640 | 8640 | 8640 | |||
SNCM415 (SNCM22) | 4315 | |||||
SNCM420 (SNCM23) | 4320 | 4320 | 4320 | |||
SNCM431 (SNCM1) | -4337 | -4337 | ||||
SNCM447 (SNCM9) | 4347 | |||||
SNCM625 (SNCM2) | ||||||
SNCM815 (SNCM25) | ||||||
(16) | 40B | TS14B35 | ||||
40B | 50B36H | |||||
40MnB | TS14B35H | |||||
40MnB | TS14B50H |