| Stainless Steel is type of iron-carbon alloy with a minimum of（11.5 wt% ）chromium content so as to be highly resistant to tarnishing and rusting. The big family of stainless steel is classified by their crystalline structure: austenitic, ferritic, martensitic and duplex categories, among which, the austenitic stainless steel are most widely used. SUS301 and 304 of austenitic group exhibit great resistance corrosion, abrasion proof and high temperature strength.
*Chemical content of main elements:
| Serial Number |
Content |
|
C |
Si |
Mn |
P |
S |
Ni |
Cr |
Mo |
N |
|
SUS301 |
≤0.15 |
≤1.00 |
≤2.00 |
≤0.045 |
≤0.030 |
6.0/8.0 |
16/18 |
-- |
≤0.25 |
|
SUS304 |
≤0.08 |
≤1.00 |
≤2.00 |
≤0.045 |
≤0.030 |
8.0/10.5 |
18/20 |
-- |
-- |
*Mechanical properties:
| Serial Number |
Temper |
Tensile test |
Hardness test |
|
Tensile strength |
Yield Strength |
Elongation |
HV |
|
SUS301
|
M |
>520 |
>205 |
>40 |
<200 |
|
1/2H |
>930 |
>510 |
>10 |
>310 |
|
3/4H |
>1130 |
>745 |
>5 |
>370 |
|
EH |
>1320 |
>1030 |
>3 |
>430 |
|
SH |
>1570 |
>1275 |
--- |
>490 |
|
SUS304 |
M |
>520 |
>205 |
>40 |
<200 |
|
1/2H |
>780 |
>470 |
>6 |
>250 |
|
3/4H |
>930 |
>665 |
>3 |
>310 |
|
EH |
>1130 |
>880 |
--- |
>370 |
Applications: Applied in the fields of electron, computer fitting, ironware, toy, stationery, medical appliance, chemical engineering (corrosion protection), and etc.Product use: electron, computer fitting, computer IO shrapnel; Ironware, stationery, kitchen ware, medical appliance; stainless etching material, chemical filling; Stainless spiral spring material with high accuracy.
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