What are the materials of screws and nuts?
The raw materials of screws and nuts are called wire rods, and different raw materials are used according to different needs, such as white iron, carbon steel, alloy steel...
The following are the specifications and chemical elements of each material:
|
Stainless Steel Wire白鐵原料 |
||||||||||||
|
Specification規格 |
化學元素 Chemical Composition (%) |
|||||||||||
|
ASTM F738m |
JIS G4315 |
NB NO. |
C碳 |
Si矽 |
Mn錳 |
P磷 |
S硫 |
Ni鎳 |
Cr鉻 |
Mo鉬 |
Cu銅 |
N氮 |
|
MAX |
MAX |
MAX |
MAX |
MAX |
MAX |
MAX |
MAX |
MAX |
MAX |
|||
|
﹣ |
XM |
302HQ |
0.0300 |
1.0000 |
2.0000 |
0.0450 |
0.0300 |
8.0~10.00 |
17.00~19.00 |
﹣ |
3.00~4.00 |
﹣ |
|
304 |
304 |
304 |
0.0800 |
1.0000 |
2.0000 |
0.0450 |
0.0300 |
8.00~10.50 |
18.00~20.00 |
﹣ |
﹣ |
0.1000 |
|
304J3 |
304J3 |
0.08 |
1.00 |
2.00 |
0.045 |
0.03 |
8.00~10.50 |
17.00~19.00 |
﹣ |
1.00~3.00 |
﹣ |
|
|
﹣ |
316 |
316 |
0.080 |
1.000 |
2.000 |
0.045 |
0.030 |
10.00~14.00 |
16.00~18.00 |
2.00~3.00 |
﹣ |
﹣ |
|
410 |
410 |
410 |
0.150 |
1.000 |
1.000 |
0.040 |
0.030 |
﹣ |
11.5~13.00 |
﹣ |
﹣ |
﹣ |
|
410C |
0.13~0.15 |
1.000 |
1.000 |
0.040 |
0.030 |
﹣ |
11.5~13.01 |
﹣ |
﹣ |
﹣ |
||
|
430 |
430 |
430 |
0.120 |
0.750 |
1.000 |
0.040 |
0.030 |
﹣ |
16.00~18.00 |
﹣ |
﹣ |
﹣ |
|
Note：aboved information is based on Walsin Lihwa and New Best wire Industry Catalog and website. Please check for detail. |
||||||||||||
|
以上資料出自華新及強新線材型錄，僅供客戶參考。 |
||||||||||||
|
NB 碳素硼鋼 |
New Best Speification
最佳規格 |
Boron硼 |
Boron Steel Wire硼鋼線材 |
|||
|
Chemical Composition (%) 化學元素 |
||||||
|
NB NO. |
C |
Si |
Mn |
P |
S |
B |
|
10B21 |
0.18~0.23 |
0.10 max. |
0.70~1.00 |
0.03 |
0.035max. |
0.0005 min |
|
NB冷鍛用
中碳合金鋼 |
New Best Speification
最佳規格 |
Medium Carbon
中碳 |
Medium Carbon Alloy Steel Wire for Cold forging
冷鍛用中碳合金鋼 |
||||
|
Chemical Composition (%) 化學元素 |
|||||||
|
NB NO. |
C |
Si |
Mn |
P |
S |
Cr |
Al |
|
CH 35 ACR |
0.35~0.39 |
0.10 max. |
0.60~0.90 |
0.03 max |
0.03 max |
0.20~0.40 |
0.010min |
|
CH 40 ACR |
0.40~0.44 |
0.10 max. |
0.60~0.90 |
0.03 max |
0.03 max |
0.20~0.40 |
0.010min |
|
SAE常用碳鋼 |
SAE |
J403 |
Carbon Steel Wire
碳鋼線材 |
|
|
化學元素Checmical Compositon (%) |
||||
|
SAE No. |
C |
Mn |
P |
S |
|
1008 |
0.10 max |
0.30~0.50 |
0.030 max |
0.05 max. |
|
1010 |
0.08~0.13 |
0.30~0.60 |
0.03 max |
0.05 max. |
|
1015 |
0.13~0.18 |
0.30~0.60 |
0.03 max |
0.05 max. |
|
1018 |
0.15~0.20 |
0.60~0.90 |
0.03 max |
0.05 max. |
|
1020 |
0.18~0.23 |
0.30~0.60 |
0.03 max |
0.05 max. |
|
1022 |
0.18~0.23 |
0.70~1.00 |
0.03 max |
0.05 max |
|
1035 |
0.32~0.38 |
0.60~0.90 |
0.03 max |
0.05 max |
|
1040 |
0.37~0.44 |
0.60~0.90 |
0.03 max |
0.05 max |
|
1045 |
0.43~0.50 |
0.60~0.90 |
0.04 max |
0.05 max |
|
JIS常用碳鋼
(冷鍛) |
JIS |
G3507 |
Carbon Steel Wire for Cold Heading and Cold Forging
冷鐓和冷鍛用碳鋼線材 |
|||
|
化學元素 Chemical Composition (%) |
||||||
|
JIS NO. |
C |
Si |
Mn |
P |
S |
Al |
|
SWRCH 8 A |
0.10 max |
0.10 max |
0.60 max. |
0.03 max. |
0.035 max. |
0.02 min. |
|
SWRCH 10 A |
0.10 max |
0.10 max |
0.03~0.06 |
0.03 max. |
0.035 max. |
0.02 min. |
|
SWRCH 15 A |
0.10 max |
0.10 max |
0.03~0.06 |
0.03 max. |
0.035 max. |
0.02 min. |
|
SWRCH 18 A |
0.10 max |
0.10 max |
0.06~0.09 |
0.03 max. |
0.035 max. |
0.02 min. |
|
SWRCH 20 A |
0.10 max |
0.10 max |
0.30~0.60 |
0.03 max. |
0.035 max. |
0.02 min. |
|
SWRCH 22 A |
0.10 max |
0.10 max |
0.7~1.00 |
0.03 max. |
0.035 max. |
0.02 min. |
|
JIS常用機械構造用碳鋼 |
JIS |
G4051 |
Carbon Steel Wire for Machine Structure Use
機械構造用碳鋼 |
||
|
Chemical Composition (%) 化學元素 |
|||||
|
JIS NO. |
C |
Si |
Mn |
P |
S |
|
S10 C |
0.08~0.13 |
0.15~0.35 |
0.30~0.60 |
0.03 max. |
0.035 max. |
|
S15 C |
0.13~0.18 |
0.15~0.35 |
0.30~0.60 |
0.03 max. |
0.035 max. |
|
S20 C |
0.18~0.23 |
0.15~0.35 |
0.30~0.60 |
0.03 max. |
0.035 max. |
|
S22 C |
0.20~0.25 |
0.15~0.35 |
0.30~0.60 |
0.03 max. |
0.035 max. |
|
S25 C |
0.22~0.28 |
0.15~0.35 |
0.30~0.60 |
0.03 max. |
0.035 max. |
|
S40 C |
0.37~0.43 |
0.15~0.35 |
0.60~0.90 |
0.03 max. |
0.035 max. |
|
S45 C |
0.42~0.48 |
0.15~0.35 |
0.60~0.90 |
0.03 max. |
0.035 max. |
|
JIS機械構造用合金鋼 |
JIS |
G4053 |
Low-Alloy Steel Wire for Mahcine Structure Use
機械構造用合金鋼 |
|||||
|
化學元素 Chemical Composition (%) |
||||||||
|
JIS NO. |
*C |
Si |
Mn |
P |
S |
Ni |
Cr |
*Mo |
|
SCM 415 |
0.13~0.18 |
0.15~0.35 |
0.60~0.90 |
0.03 max. |
0.03 max. |
0.25 max. |
0.9~1.20 |
0.15~0.25 |
|
SCM 420 |
0.18~0.23 |
0.15~0.35 |
0.60~0.90 |
0.03 max. |
0.03 max. |
0.25 max. |
0.9~1.20 |
0.15~0.25 |
|
SCM 425 |
0.23~0.28 |
0.15~0.35 |
0.60~0.90 |
0.03 max. |
0.03 max. |
0.25 max. |
0.9~1.20 |
0.15~0.30 |
|
SCM 430 |
0.28~0.33 |
0.15~0.35 |
0.60~0.90 |
0.03 max. |
0.03 max. |
0.25 max. |
0.9~1.20 |
0.15~0.30 |
|
SCM 435 |
0.33~0.38 |
0.15~0.35 |
0.60~0.90 |
0.03 max. |
0.03 max. |
0.25 max. |
0.9~1.20 |
0.15~0.30 |
|
SCM 440 |
0.38~0.43 |
0.15~0.35 |
0.60~0.90 |
0.03 max. |
0.03 max. |
0.25 max. |
0.9~1.20 |
0.15~0.30 |
