In addition, we use heat resisting steel bar of Daido Kogyo
Co. LTD. In Japan and Hitach Metals. LTD. in Japan, and we
also take STELLITE cobalt alloy of MITSUBISHI The composition
of the material are superb stable.
|
| 1、valve steel bar constituent and mechanical behaviour： |
Vavle
Inlet |
牌号JIS |
chemical composition% |
mechanical behaviour |
hardness
HRC |
| C |
Si |
Mn |
P |
S |
Ni |
Cr |
Mo |
Cu |
Other
|
抗拉强度
2
kgf/mu |
屈服强度
2
kgf/mu |
| SUH1 |
0.40-0.50 |
3.00-3.50 |
≤0.60 |
≤0.030 |
≤0.030 |
≤0.060 |
7.50-9.50 |
- |
(≤0.30) |
- |
≥95 |
≥70 |
32-38 |
| SUH3 |
0.35-0.45 |
1.80-2.50 |
≤0.060 |
≤0.030 |
≤0.030 |
≤0.060 |
10.00-12.00 |
0.70-1.30 |
(≤0.30) |
- |
≥95 |
≥70 |
21-33 |
| SUH11 |
0.45-0.55 |
1.00-2.00 |
≤0.060 |
≤0.030 |
≤0.030 |
≤0.060 |
7.50-9.50 |
- |
(≤0.30) |
- |
≥90 |
≥70 |
32-38 |
Vavle
Exhaust |
SUH35 |
0.48-0.58 |
≤0.35 |
8.00-10.00 |
≤0.040 |
≤0.030 |
3.25-4.50 |
20.00-22.00 |
- |
- |
N 0.35-0.50 |
≥90 |
≥70 |
30-35 |
| SUH38 |
0.25-0.35 |
≤1.00 |
≤1.2 |
0.18-0.25 |
≤0.030 |
10.00-12.00 |
19.00-21.00 |
1.80-2.50 |
- |
B 0.001-0.010 |
≥90 |
≥70 |
26-40 |
| HRN751 |
≤1.00 |
≤0.50 |
≤1.00 |
- |
≤0.015 |
≥7.00 |
14.0-17.0 |
- |
≤0.50 |
- |
119-144.8 |
84.4-114.6 |
26-48 |
|
| 2、STELLITE cobalt alloy chemical composition and hardness： |
| |
牌号JIS |
chemical composition% |
hardness |
| Co |
Ni |
Si |
Fe |
Mn |
Cr |
Mo |
C |
W |
HRC |
| 锥面焊接料 |
STELLITE
NO.32 |
Min
Max |
21
24 |
0.9
1.3 |
0.85
1.35 |
3.0以内 |
24
27 |
0.6以内 |
1.5
2.0 |
11.5
13 |
HRC42 |
STELLITE
NO.6 |
Min
Max |
3.0 |
2.0 |
3.0 |
1.0 |
26
32 |
1.0 |
1.4 |
3
6 |
HRC43 |
STELLITE
NO.12 |
Min
Max |
3.0 |
2.0 |
3.0 |
1.0 |
26
32 |
1.0 |
1.2
1.7 |
7
9 |
HRC48 |
| 轴端焊接用料 |
STELLITE
NO.1 |
Min
Max |
3.0 |
2.0 |
3.0 |
1.0 |
26
33 |
1.0 |
2
3 |
11
14 |
HRC53 |
|
|
