Carbon and Alloy Steel
|
||
CARBON AND ALLOY STEEL Hardness Conversion Table |
|
CARBON and ALLOY Steel 碳素钢材和合金钢 |
JIS1) |
AISI2) or SAE3) |
Chemical Composition 化学成份% |
Mechanical Properties 机械性能 |
|||||||||||
Yield 屈服强度 |
Tensile 抗拉强度 |
Elongation 伸长率 |
Impact |
Hardness |
||||||||||
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Ni |
|||||||
kg/mm2 |
kg/mm2 |
% |
J |
HB |
||||||||||
Carbon Steel for Machine Structural Use JIS G4051 : 1979 |
||||||||||||||
S10C |
0.08 ~ 0.13 |
0.15 ~ 0.35 |
0.30 ~ 0.60 |
0.03 |
0.035 |
- |
- |
- |
21 |
32 |
33 |
- |
109 ~ 159 |
|
1010 |
0.08 ~ 0.13 |
- |
0.30 ~ 0.60 |
0.035 |
0.045 |
- |
- |
- |
21 |
32 |
33 |
- |
109 ~ 159 |
|
S15C |
0.13 ~ 0.18 |
0.15 ~ 0.35 |
0.30 ~ 0.60 |
0.03 |
0.035 |
- |
- |
- |
24 |
38 |
30 |
- |
111 ~ 167 |
|
1015 |
0.13 ~ 0.18 |
- |
0.30 ~ 0.60 |
0.035 |
0.045 |
- |
- |
- |
24 |
38 |
30 |
- |
111 ~ 167 |
|
S20C |
0.18 ~ 0.23 |
0.15 ~ 0.35 |
0.30 ~ 0.60 |
0.03 |
0.035 |
- |
- |
- |
35 |
41 |
28 |
- |
116 ~ 174 |
|
1020 |
0.18 ~ 0.23 |
- |
0.30 ~ 0.60 |
0.035 |
0.045 |
- |
- |
- |
35 |
41 |
28 |
- |
116 ~ 174 |
|
S40C |
0.37 ~ 0.43 |
0.15 ~ 0.35 |
0.60 ~ 0.90 |
0.03 |
0.035 |
- |
- |
- |
33 |
55 |
22 |
- |
156 ~ 217 |
|
1040 |
0.37 ~ 0.44 |
- |
0.60 ~ 0.90 |
0.03 |
0.045 |
- |
- |
- |
33 |
55 |
22 |
- |
156 ~ 217 |
|
S45C |
0.42 ~ 0.48 |
0.15 ~ 0.35 |
0.60 ~ 0.90 |
0.03 |
0.035 |
- |
- |
- |
35 |
58 |
20 |
- |
167 ~ 229 |
|
10454) |
0.43~ 0.50 |
- |
0.60 ~ 0.90 |
0.035 |
0.045 |
- |
- |
- |
35 |
58 |
20 |
- |
167 ~ 229 |
|
S55C |
0.52 ~ 0.58 |
0.15 ~ 0.35 |
0.60 ~ 0.90 |
0.03 |
0.035 |
- |
- |
- |
40 |
66 |
15 |
- |
183 ~ 255 |
|
1055 |
0.50 ~ 0.60 |
- |
0.60 ~ 0.90 |
0.035 |
0.045 |
- |
- |
- |
40 |
66 |
15 |
- |
183 ~ 255 |
|
Chromium Molybdenum Steels JIS G4105 : 1979 |
||||||||||||||
SCM430 |
0.28 ~ 0.33 |
0.15 ~ 0.35 |
0.60 ~ 0.85 |
0.03 |
0.03 |
0.90 ~ 1.20 |
0.15 ~ 0.30 |
- |
70 |
85 |
18 |
11 |
241 ~ 293 |
|
4130 |
0.28 ~ 0.33 |
0.15 ~ 0.30 |
0.40 ~ 0.60 |
0.035 |
0.04 |
0.80 ~ 1.10 |
0.15 ~ 0.25 |
- |
70 |
85 |
18 |
11 |
241 ~ 293 |
|
SCM440 |
0.38 ~ 0.43 |
0.15 ~ 0.35 |
0.60 ~ 0.85 |
0.03 |
0.03 |
0.90 ~ 1.20 |
0.15 ~ 0.30 |
- |
85 |
100 |
12 |
6 |
285 ~ 341 |
|
41405) |
0.38 ~ 0.43 |
0.15 ~ 0.30 |
0.75 ~ 1.00 |
0.035 |
0.04 |
0.80 ~ 1.10 |
0.15 ~ 0.25 |
- |
85 |
100 |
12 |
6 |
285 ~ 341 |
|
Nickel Chromium Molybdenum Steels JIS G4103 : 1979 |
||||||||||||||
SNCM420 |
0.17 ~ 0.23 |
0.15 ~ 0.35 |
0.40 ~ 0.70 |
0.03 |
0.03 |
0.40 ~ 0.65 |
0.15 ~ 0.30 |
1.60 ~ 2.00 |
- |
100 |
15 |
7 |
293 ~ 375 |
|
4320 |
0.17 ~ 0.22 |
0.15 ~ 0.30 |
0.45 ~ 0.65 |
0.035 |
0.04 |
0.40 ~ 0.60 |
0.20 ~ 0.30 |
1.65 ~ 2.00 |
- |
100 |
15 |
7 |
293 ~ 375 |
|
SNCM439
|
0.36 ~ 0.43 |
0.15 ~ 0.35 |
0.60 ~ 0.90 |
0.03 |
0.03 |
0.60 ~ 1.00 |
0.15 ~ 0.30 |
1.60 ~ 2.00 |
90 |
100 |
16 |
7 |
293 ~ 352 |
|
43406) |
0.38 ~ 0.43 |
0.15 ~ 0.30 |
0.60 ~ 0.80 |
0.035 |
0.03 |
0.70 ~ 0.90 |
0.20 ~ 0.30 |
1.65 ~ 2.00 |
90 |
100 |
16 |
7 |
293 ~ 352 |
|
Notes:
1) JIS = Japanese Industrial Standard 日本工业标准
2) AISI = American Iron Steel Institute 美国钢铁学会
3) SAE = Society of Automotive Enginners 美国汽车工程协会
4) AISI 1045 nearest equilvalent : Steel No. 1.1203 ASSAB 760 BS EN 9 ( BS 970 GRADE 070M55 )EN 10083-1 2C55; UNS G10450
5) AISI 4140 nearest equilvalent : Steel No. 1.7225 ASSAB 709 BS EN 19A ( BS970 GRADE 708M40 ) EN 10083-1 42CrMo4 UNS G41400
6) AISI 4340 nearest equilvalent : Steel No. 1.6582 ASSAB 705 BS EN 24 ( BS970 GRADE 817M40 ) EN 10083-1 34CrNiMo6 UNS G43400
Hardness Conversion Table (steel) 硬度表
Diameter of Brinell indent (mm) |
Brinell hardness 10mm.load 3000kg |
Vickers hardness |
Rockwell hardness |
Rockwell superficial hardness |
Shore Hardness |
Tensile Strength N/mm2
Approxi- mate value |
|||||
Standard or Hultgren or Tungsten carbide ball |
A Scale load 60kgf Diamond Penetration |
B Scale load 100kgf (1.588mm) Ball |
C Scale load 150kgf Diamond Penetration |
D Scale load 100kgf Diamond Penetration |
15-N Scale load 10kgf |
30-N Scale load 30kgf |
45-N Scale load 45kgf |
||||
HB |
HV |
HRA |
HRB |
HRC |
HRD |
HR15N |
HR30N |
HR45N |
HS |
||
2.50 |
6013) |
640 |
79.8 |
- |
57.3 |
68.7 |
89.0 |
75.1 |
63.5 |
77 |
2055 |
2.55 |
5783) |
615 |
79.1 |
- |
56.0 |
67.7 |
88.4 |
73.9 |
62.1 |
75 |
1979 |
2.60 |
5553) |
591 |
78.4 |
- |
54.7 |
66.7 |
87.8 |
72.7 |
60.6 |
73 |
1903 |
2.65 |
5343) |
569 |
77.8 |
- |
53.5 |
65.8 |
87.2 |
71.6 |
59.2 |
71 |
1834 |
2.70
|
5142) |
553 |
77.1 |
- |
52.5 |
65.0 |
86.7 |
70.7 |
58.0 |
- |
1765 |
5143) |
547 |
76.9 |
- |
52.1 |
64.7 |
86.5 |
70.3 |
57.6 |
70 |
1765 |
|
2.75
|
4951) |
539 |
76.7 |
- |
51.6 |
64.3 |
86.3 |
69.9 |
56.9 |
- |
1703 |
4952) |
530 |
76.4 |
- |
51.1 |
63.9 |
86.0 |
69.5 |
56.2 |
- |
1703 |
|
4953) |
528 |
76.3 |
- |
51.0 |
63.8 |
85.9 |
69.4 |
56.1 |
68 |
1703 |
|
2.80
|
4771) |
516 |
75.9 |
- |
50.3 |
63.2 |
85.6 |
68.7 |
55.2 |
- |
1641 |
4772) |
508 |
75.6 |
- |
49.6 |
62.7 |
85.3 |
68.2 |
54.5 |
- |
1641 |
|
4773) |
508 |
75.6 |
- |
49.6 |
62.7 |
85.3 |
68.2 |
54.5 |
66 |
1641 |
|
2.85
|
4611) |
495 |
75.1 |
- |
48.8 |
61.9 |
84.9 |
67.4 |
53.5 |
- |
1579 |
4612) |
491 |
74.9 |
- |
48.5 |
61.7 |
84.7 |
67.2 |
53.2 |
- |
1579 |
|
4613) |
491 |
74.9 |
- |
48.5 |
61.7 |
84.7 |
67.2 |
53.2 |
65 |
1579 |
|
2.90
|
4441) |
474 |
74.3 |
- |
47.2 |
61.0 |
84.1 |
66.0 |
51.7 |
- |
1517 |
4442) |
472 |
74.2 |
- |
47.1 |
60.8 |
84.0 |
65.8 |
51.5 |
- |
1517 |
|
4443) |
472 |
74.2 |
- |
47.1 |
60.8 |
84.0 |
65.8 |
51.5 |
63 |
1517 |
|
2.95 |
429 |
455 |
73.4 |
- |
45.7 |
59.7 |
83.4 |
64.6 |
49.9 |
61 |
1462 |
3.00 |
415 |
440 |
72.8 |
- |
44.5 |
58.8 |
82.8 |
63.5 |
48.4 |
59 |
1407 |
3.05 |
401 |
425 |
72.0 |
- |
43.1 |
57.8 |
82.0 |
62.3 |
46.9 |
58 |
1351 |
3.10 |
388 |
410 |
71.4 |
- |
41.8 |
56.8 |
81.4 |
61.1 |
45.3 |
56 |
1303 |
3.15 |
375 |
396 |
70.6 |
- |
40.4 |
55.7 |
80.6 |
59.9 |
43.6 |
54 |
1255 |
3.20 |
363 |
383 |
70.0 |
- |
39.1 |
54.6 |
80.0 |
58.7 |
42.0 |
52 |
1213 |
3.25 |
352 |
372 |
69.3 |
(110.0) |
37.9 |
53.8 |
79.3 |
57.6 |
40.5 |
51 |
1172 |
3.30 |
341 |
360 |
68.7 |
(109.0) |
36.6 |
52.8 |
78.6 |
56.4 |
39.1 |
50 |
1138 |
3.35 |
331 |
350 |
68.1 |
(108.5) |
35.5 |
51.9 |
78.0 |
55.4 |
37.8 |
48 |
1103 |
3.40 |
321 |
339 |
67.5 |
(108.0) |
34.3 |
51.0 |
77.3 |
54.3 |
36.4 |
47 |
1069 |
3.45 |
311 |
328 |
66.9 |
(107.5) |
33.1 |
50.0 |
76.7 |
53.3 |
34.4 |
46 |
1034 |
3.50 |
302 |
319 |
66.3 |
(107.0) |
32.1 |
49.3 |
76.1 |
52.2 |
33.8 |
45 |
1007 |
3.55 |
293 |
309 |
65.7 |
(106.0) |
30.9 |
48.3 |
75.5 |
51.2 |
32.4 |
43 |
979 |
3.60 |
285 |
301 |
65.3 |
(105.5) |
29.9 |
47.6 |
75.0 |
50.3 |
31.2 |
- |
951 |
3.65 |
277 |
292 |
64.6 |
(104.5) |
28.8 |
46.7 |
74.4 |
49.3 |
29.9 |
41 |
924 |
3.70 |
269 |
284 |
64.1 |
(104.0) |
27.6 |
45.9 |
73.7 |
48.3 |
28.5 |
40 |
903 |
3.75 |
262 |
276 |
63.6 |
(103.0) |
26.6 |
45.0 |
73.1 |
47.3 |
27.3 |
39 |
883 |
3.80 |
255 |
269 |
63.0 |
(102.0) |
25.4 |
44.2 |
72.5 |
46.2 |
26.0 |
38 |
862 |
3.85 |
248 |
261 |
62.5 |
(101.0) |
24.2 |
43.2 |
71.7 |
45.1 |
24.5 |
37 |
841 |
3.90 |
241 |
253 |
61.8 |
100.0 |
22.8 |
42.0 |
70.9 |
43.9 |
22.8 |
36 |
820 |
3.95 |
235 |
247 |
61.4 |
99.0 |
21.7 |
41.4 |
70.3 |
42.9 |
21.5 |
35 |
800 |
4.00 |
229 |
241 |
60.8 |
98.2 |
20.5 |
40.5 |
69.7 |
41.9 |
20.1 |
34 |
779 |
4.05 |
223 |
234 |
- |
97.3 |
(18.8) |
- |
- |
- |
- |
- |
758 |
4.10 |
217 |
228 |
- |
96.4 |
(17.5) |
- |
- |
- |
- |
33 |
738 |
4.15 |
212 |
222 |
- |
95.5 |
(16.0) |
- |
- |
- |
- |
- |
717 |
4.20 |
207 |
218 |
- |
94.6 |
(15.2) |
- |
- |
- |
- |
32 |
696 |
4.25 |
201 |
212 |
- |
93.8 |
(13.8) |
- |
- |
- |
- |
31 |
683 |
4.30 |
197 |
207 |
- |
92.8 |
(12.7) |
- |
- |
- |
- |
30 |
669 |
4.35 |
192 |
202 |
- |
91.9 |
(11.5) |
- |
- |
- |
- |
29 |
655 |
4.40 |
187 |
196 |
- |
90.7 |
(10.0) |
- |
- |
- |
- |
- |
641 |
4.45 |
183 |
192 |
- |
90.0 |
(9.0) |
- |
- |
- |
- |
28 |
627 |
4.50 |
179 |
188 |
- |
89.0 |
(8.0) |
- |
- |
- |
- |
27 |
614 |
4.55 |
174 |
182 |
- |
87.8 |
(6.4) |
- |
- |
- |
- |
- |
600 |
4.60 |
170 |
178 |
- |
86.8 |
(5.4) |
- |
- |
- |
- |
26 |
586 |
4.65 |
167 |
175 |
- |
86.0 |
(4.4) |
- |
- |
- |
- |
- |
572 |
4.70 |
163 |
171 |
- |
85.0 |
(3.3) |
- |
- |
- |
- |
25 |
565 |
4.80 |
156 |
163 |
- |
82.9 |
(0.9) |
- |
- |
- |
- |
- |
538 |
4.90 |
149 |
156 |
- |
80.8 |
- |
- |
- |
- |
- |
23 |
517 |
5.00 |
143 |
150 |
- |
78.7 |
- |
- |
- |
- |
- |
22 |
496 |
5.10 |
137 |
143 |
- |
76.4 |
- |
- |
- |
- |
- |
21 |
483 |
5.20 |
131 |
137 |
- |
74.0 |
- |
- |
- |
- |
- |
- |
455 |
5.30 |
126 |
132 |
- |
72.0 |
- |
- |
- |
- |
- |
20 |
441 |
5.40 |
121 |
127 |
- |
69.8 |
- |
- |
- |
- |
- |
19 |
427 |
5.50 |
116 |
122 |
- |
67.6 |
- |
- |
- |
- |
- |
18 |
414 |
5.60 |
111 |
117 |
- |
65.7 |
- |
- |
- |
- |
- |
15 |
400 |
5.70 |
1071) |
113 |
- |
64 |
- |
- |
- |
- |
- |
- |
379 |
5.80 |
1031) |
108 |
- |
61 |
- |
- |
- |
- |
- |
- |
365 |
Notes:
1) Standard ball only
2) Hultgren ball only
3) Tungsten carbide ball only
Figures in parenthesis are rarely used, given for information only
