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  5. Umbreytingstafla yfir hörku

Umbreytingstafla yfir hörku

Áætlað umbreytingargildi fyrir stál Rockwell C hörku*1

 

 

(HRC)

Rockwell C mælikvarði

hörku

 

 

(HV)

Vickers

hörku

Brinell hörku (HB) 10 mm kúlu álag 3000 kgf Rockwell hörku*3 Rockwell yfirborðskennd

hörku; tígulkeilulaga innskot

(HS)  

Togstyrkur

styrkur*2    (áætlað gildi) MPa

 

(HRC)*3

Rockwell C kvarði

hörku

Strönd hörku
 

Venjulegur bolti

 

Volfram

karbítbolti

(LEIKUR) A

vog álag 60 kgf

demantur keilulaga

inndrætti

(HRB) B

mælikvarða álag

100 kgf

þvermál

1,6 mm

(1/16 tommu) bolti

(HRD) D

vog álag 100 kgf

demantur keilulaga

inndrætti

15-N  kvarða  álag   15 kgf 30-N  kvarða  álag   30 kgf 45-N  kvarða  álag   45 kgf
68 940 85.6 76.9 93.2 84.4 75.4 97 68
67 900 85.0 76.1 92.9 83.6 74.2 95 67
66 865 84.5 75.4 92.5 82.8 73.3 92 66
65 832 (739) 83.9 74.5 92.2 81.9 72.0 91 65
64 800 (722) 83.4 73.8 91.8 81.1 71.0 88 64
63 772 (705) 82.8 73.0 91.4 80.1 69.9 87 63
62 746 (688) 82.3 72.2 91.1 79.3 68.8 85 62
61 720 (670) 81.8 71.5 90.7 78.4 67.7 83 61
60 697 (654) 81.2 70.7 90.2 77.5 66.6 81 60
59 674 (634) 80.7 69.9 89.8 76.6 65.5 80 59
58 653   615 80.1   69.2 89.3 75.7 64.3 78   58
57 633   595 79.6   68.5 88.9 74.8 63.2 76   57
56 613   577 79.0   67.7 88.3 73.9 62.0 75   56
55 595   560 78.5   66.9 87.9 73.0 60.9 74 2075 55
54 577   543 78.0   66.1 87.4 72.0 59.8 72 2015 54
53 560 525 77.4 65.4 86.9 71.2 58.6 71 1950 53
52 544 (500) 512 76.8 64.6 86.4 70.2 57.4 69 1880 52
51 528 (487) 496 76.3 63.8 85.9 69.4 56.1 68 1820 51
50 513 (475) 481 75.9 63.1 85.5 68.5 55.0 67 1760 50
49 498 (464) 469 75.2 62.1 85.0 67.6 53.8 66 1695 49
48 484 451 455 74.7 61.4 84.5 66.7 52.5 64 1635 48
47 471 442 443 74.1 60.8 83.9 65.8 51.4 63 1580 47
46 458 432 432 73.6 60.0 83.5 64.8 50.3 62 1530 46
45 446 421 421 73.1 59.2 83.0 64.0 49.0 60 1480 45
44 434 409 409 72.5 58.5 82.5 63.1 47.8 58 1435 44
43 423 400 400 72.0 57.7 82.0 62.2 46.7 57 1385 43
42 412 390 390 71.5 56.9 81.5 61.3 45.5 56 1340 42
41 402 381 381 70.9 56.2 80.9 60.4 44.3 55 1295 41
40 392 371 371 70.4 55.4 80.4 59.5 43.1 54 1250 40
39 382 362 362 69.9 54.6 79.9 58.6 41.9 52 1215 39
38 372 353 353 69.4 53.8 79.4 57.7 40.8 51 1180 38
37 363 344 344 68.9 53.1 78.8 56.8 39.6 50 1160 37
36 354 336 336 68.4 (109.0) 52.3 78.3 55.9 38.4 49 1115 36
35 345 327 327 67.9 (108,5) 51.5 77.7 55.0 37.2 48 1080 35
34 336 319 319 67.4 (108.0) 50.8 77.2 54.2 36.1 47 1055 34
33 327 311 311 66.8 (107,5) 50.0 76.6 53.3 34.9 46 1025 33
32 318 301 301 66.3 (107.0) 49.2 76.1 52.1 33.7 44 1000 32
31 310 294 294 65.8 (106.0) 48.4 75.6 51.3 32.5 43 980 31
30 302 286 286 65.3 (105,5) 47.7 75.0 50.4 31.3 42 950 30
29 294 279 279 64.7 (104,5) 47.0 74.5 49.5 30.1 41 930 29
28 286 271 271 64.3 (104.0) 46.1 73.9 48.6 28.9 41 910 28
27 279 264 264 63.8 (103.0) 45.2 73.3 47.7 27.8 40 880 27
26 272 258 258 63.3 (102,5) 44.6 72.8 46.8 26.7 38 860 26
25 266 253 253 62.8 (101,5) 43.8 72.2 45.9 25.5 38 840 25
24 260 247 247 62.4 (101.0) 43.1 71.6 45.0 24.3 37 825 24
23 254 243 243 62.0 100.0 42.1 71.0 44.0 23.1 36 805 23
22 248 237 237 61.5 99.0 41.6 70.5 43.2 22.0 35 785 22
21 243 231 231 61.0 98.5 40.9 69.9 42.3 20.7 35 770 21
20 238 226 226 60.5 97.8 40.1 69.4 41.5 19.6 34 760 20
(18) 230 219 219 96.7 33 730 (18)
(16) 222 212 212 95.5 32 705 (16)
(14) 213 203 203 93.9 31 675 (14)
(12) 204 194 194 92.3 29 650 (12)
(10) 196 187 187 90.7 28 620 (10)
(8) 188 179 179 89.5 27 600 (8)
(6) 180 171 171 87.1 26 580 (6)
(4) 173 165 165 85.5 25 550 (4)
(2) 166 158 158 83.5 24 530 (2)
(0) 160 152 152 81.7 24 515 (0)

* 1 feitletraðar tölur eru samkvæmt ASTM E 140 töflu 1 (raðað saman af SAE, ASM og ASTM). *2 1MPa = 1N/mm2

*3 Gildið í sviga í töflunni er fyrir svið sem sjaldan notuð og tilgreint til viðmiðunar.

Um okkur

Handan Yanlang Fastener Co., Ltd er kínverskur festingarframleiðandi sem sérhæfir sig í hönnun og framleiðslu á hágæða festingum. Staðsett í „höfuðborg festinga í Kína“-Yongnian District, Handan borg, nær það yfir viðskiptasvæði sem er 7.000 fermetrar….

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