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 XAJTsteel EN40 2023/12/22 20:51:00 |
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EN40
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EN40 EN40B
TYPICAL ANALYSIS
C.
0.25%
Si.
0.30%
Mn.
0.60%
Cr.
3.25%
Mo.
0.55%
EN40B is a chromium-molybdenum nitriding steel usually supplied in the hardened and tempered condition, which offers high wear resistance together with good toughness and ductility. It is characterised by its suitability for nitriding, which can give a hard wear resistant core in the range of 61-65Rc. The relatively low temperature of the nitriding process produces components with a scale free surface, and minimum distortion.
Hardening:
Heat uniformly to 880/910掳C, soak until heated through. Quench in oil.
Tempering:
Heat uniformly and thoroughly at the selected tempering temperature, between 570掳C to 700掳C.
Heat
Treatment
Tensile
Strength
Rm N/mm虏
Yield
Stress
Re N/mm虏
a% on
5.665脰So
Impact
Izod J
Impact
KCV J
Hardness
HB
Size
mm
T
850/1000
650
13
40
35
248/302
>150鈮?50
T
850/1000
680
13
54
50
248/302
>6鈮?50
U
925/1075
755
12
47
42
269/331
>6鈮?50
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Xi'an Jiate Titanium Industry Co.,Ltd |
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Contact
Person: |
Alisa Zhang |
Phone: |
0086-29-85277651 |
Fax: |
0086-29-85490661 |
Zip code: |
710061 |
Address: |
NO.375 Changan South Road,Xian,Xian,Shaanxi |
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Web Site: |
http://www.cntitanium.com |
E-mail: |
alisa@jttitanium.com |
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