PDF《DHA1》

苏州钜研精密模具钢材有限公司 Suzhou PROMAX Precision mould steel co.

, LTD 苏州钜研精密模具钢材有限公司 产品资料 DHA1 http://www.promaxs.com DHA1

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5 HRC41~48 HRC45~50 HRC43~48 HRC35~45 HRC42~50 ----- http://www.promaxs.com C Si Mn Cr 4.50-5.50 0.80-1.20 0.32-0.42 SKD61 DHA1 1.00-1.50 0.80-1.20 Mo V o ( C) o ( C) o ( C) (HB) (HRC) Ac Ar Ms

320 769~725 847~918

53 229 1200~900 820~870 1000~1050 550~650 JIS ( )

1030 0.5 HRC o C 1hr

60 55

50 45

40 1000

1050 1100

1100 1150

1050 1000

950 5

4 3

2 1

2 kg f m/cm o

600 C x 1hr 10min o C o C HRC HRC o

580 C 1hr

60 50

40 30

100 200

300 400

500 600

700 o

1050 C o

1020 C o

980 C

52 50

48 46

44 42

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3 4 51HRC+1 49HRC+1 46HRC+1 o

1030 C x 30minGC o

25 C o

100 C o ~100 C o ~200 C o ~300 C o ~400 C o ~500 C o ~600 C o ~700 C o

200 C o

300 C o

400 C o

500 C o

600 C o

700 C 0.0721 0.0712 0.0624 0.0687 0.0707 0.0702 0.0605 0.0569 DHA1 10.5 11.4 12.1 12.8 13.3 13.7 13.6 DHA1 % +0.30 +0.20 +0.10

0 -0.10 -0.20 -0.30

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12 10

8 6

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200 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 o C 1hr mm Hv Load:300G 47HRC o

570 C 3h HV

25 x 50mm o

1030 C

2 / kg f m/mm o

1030 C o

635 C 44.2HRC

2 kg f m/cm

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50 300

400 500

600 700 o C o C o H :

1030 C o T :

635 C 44.2HRC o cal/cm sec C -6 o x

10 / C

20 10

0 f 4sec

15 60 4min

15 60 4hr

15 1

10 2

10 3

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10 5

10 A P B Ms M

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100 0 o

1030 C o C sec 11/2009 http://www.promaxs.com 苏州钜研精密模具钢材有限公司 Suzhou PROMAX Precision mould steel co., LTD 苏州钜研精密模具钢材有限公司