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回火温度与硬度 % w+ ~9 y5 C$ I+ u4 p, R/ S; w
材料 140 160 180 200 220 240 260 280 300 320 % m ]0 s7 r3 C& o: d
45 59.8 59.2 58.4 57.6 56.6 55.6 54.5 53.3 52.0 50.6
4 w6 G# f# [! U: @" d7 v% _40Cr 64.5 63.0 61.5 60.0 58.5 57.0 55.5 54.0 52.5 51.0 ) d' I* r" a0 [9 R& |
5CrMnMo 60.6 59.4 58.2 57.0 55.8 54.6 53.4 52.2 51.0 49.8
/ f9 X+ n5 E1 p/ m* uT8 65.7 64.0 62.2 60.5 58.7 56.9 55.2 53.4 51.7 49.9 " z. F8 m9 t# s1 _3 V
T10 70.0 68.2 66.3 64.5 62.7 60.9 59.1 57.2 55.4 53.6 ; V1 ?6 a! d% P+ `$ k
T12 63.8 62.5 61.3 60.0 58.8 57.5 56.3 55.0 53.8 52.5 & Y; I1 Z. I M2 O: d/ c
GCr15 640 626 613 600 586 573 560 546 533 520
4 y; g% U1 h& Z' w! U$ L# i; }30CrMo 53.8 52.5 51.3 50.0 48.8 47.5 46.3 45.0 43.8 42.5 3 \5 ]) U7 e7 i: j$ \2 o) _
38CrMoAl 58.4 57.6 56.8 56.0 55.2 54.4 53.6 52.8 52.0 51.2
6 l% W M" C" L+ ?6 s9CrSi 64.3 63.7 63.0 62.3 61.7 61.0 60.3 59.7 59.0 58.3
6 B. h% }$ E, X$ ~3 @3 J: M" Y R材料 340 360 380 400 420 440 460 480 500 520 ) F2 a! t8 R6 p
45 49.2 47.6 46.0 44.2 42.4 40.5 38.5 36.4 34.2 32.0
1 y! G# g0 ?% o2 v4 C40Cr 49.5 48.0 46.5 45.0 43.5 42.0 40.5 39.0 37.5 36.0
5 x; i* @9 t" H' d/ ^5CrMnMo 48.6 47.4 46.2 45.0 43.8 42.6 41.4 40.2 39.0 37.8
& s7 z) L- z' ^# @9 dT8 48.2 46.4 44.7 42.9 41.2 39.4 37.6 35.9 34.1 32.4 ( V* g% I" J, ^
T10 51.8 50.0 48.2 46.3 44.5 42.7 40.9 39.1 37.2 35.4
. \3 ?. O" u1 j' G% | nT12 51.3 50.0 48.8 47.5 46.3 45.0 43.8 42.5 41.3 40.0
_4 P) U& j2 k/ O( ~+ c. i& X7 u0 cGCr15 506 493 480 466 453 440 426 413 400 386
8 r! F8 ~5 U) O# A5 U$ A7 G30CrMo 41.3 40.0 38.8 37.5 36.3 35.0 33.8 32.5 31.3 30.0 5 g* {+ |3 @; o4 n6 n
38CrMoAl 50.4 49.6 48.8 48.0 47.2 46.4 45.6 44.8 44.0 43.2
/ A4 f% g- O! l0 V2 m9CrSi 57.7 57.0 56.3 55.7 55.0 54.3 53.7 53.0 52.3 51.7 2 N3 M- V0 X7 G
材料 540 560 580 600 620 640 660 680 700 720
0 c3 F' ]: D! ~4 _% f45 29.6 27.2 24.6 22.0 225 214 200 189 178 167
3 ]) a' q6 P y3 i( b4 J1 P40Cr 34.5 33.0 31.5 30.0 28.5 27.0 25.5 24.0 22.5 230 : e. E9 W$ C1 h
5CrMnMo 36.6 35.4 34.2 33.0 31.8 30.6 29.4 28.2 27.0 25.8
2 v' G7 L8 T! u5 YT8 30.6 28.9 27.1 25.4 23.6 21.9 228 221 213 205 ! Q5 L/ f2 ^2 @5 W* i
T10 33.6 31.8 30.0 28.2 26.3 24.5 22.7 231 224 215 ) s$ X) W1 C) g7 K
T12 38.8 37.5 36.3 35.0 33.8 32.5 31.3 30.0 28.8 27.5
3 H/ M/ I) c$ y5 {3 G" w! }/ }GCr15 373 360 346 333 320 306 293 280 266 253 $ f5 D5 }, g; U
30CrMo 28.8 27.5 26.3 25.0 23.8 22.5 21.3 226 223 217 ; l7 s5 g- n( G
38CrMoAl 42.4 39.0 37.0 35.0 33.0 31.0 29.0 27.0 25.0 23.0
8 q; m4 y6 X8 y' t( e- Z9CrSi 51.0 50.3 49.7 49.0 48.3 47.7 47.0 46.3 45.7 45.0
3 m* l' n3 h% N为了给大家省钱,我来贴出来吧% \" A5 n9 c4 E6 {
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