| Specification Material And Style |
| (Valve steel bar constituent and mechanical behaviour): |
|
进
气
门
|
牌号
JIS |
化学成份（chemical composition)% |
机械性能
(mechanical behaviour) |
硬度 |
| C |
Si |
Mn |
P |
S |
Ni |
Ni |
Mo |
Cu |
其它 |
抗拉
强度
2 kgf
/mu |
屈服
强度
2 kgf
/mu |
(hard
-ness)
HRC |
| 40Cr |
0.37-
0.45 |
0.20-
0.40 |
0.50-
0.80 |
≤
0.040 |
≤
0.040 |
- |
0.80-
1.10 |
- |
- |
- |
≥90 |
≥70 |
32-38 |
SUH1
4Cr9Si2 |
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
4Cr10Si2Mo |
0.35-
0.45 |
1.80-
2.50 |
≤
0.60 |
≤
0.030 |
≤
0.030 |
≤
0.060 |
10.00-
12.00 |
0.70-
1.30 |
(≤
0.30) |
- |
≥95 |
≥70 |
21-33 |
|
排
气
门 |
SUH1
4Cr9Si2 |
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
4Cr10Si2Mo |
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 |
SUH35
21-4N |
0.45-
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 | | |
| |
| （Stellite cobalt alloy chemical composition and hardness): |
|
|
牌号
JIS |
化学成份（chemical composition)% |
硬度 |
| |
|
|
|
|
|
|
|
|
HRC |
STEL
-LITE
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 |
| |
STEL
-LITE
NO.6 |
Min
Max |
3.0 |
2.0 |
3.0 |
1.0 |
26
32 |
1.0 |
1.4 |
3
6 |
HRC43 |
锥面
焊接料
|
STEL
-LITE
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
|
STEL
-LITE
NO.1 |
Min
Max |
3.0 |
2.0 |
3.0 |
1.0 |
26
32 |
1.0 |
2
3 |
11
14 |
HRC53 | | |
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