KWS4MA
KWS4MA
It is a material developed by our company and a SUS440C alternative steel grade.
It is a martensitic stainless steel, which can be heat-treated to improve wear resistance.
Please ask for details.
Features of KWS4MA
|
Abrasion resistance
|
Hardness over HV 700, equivalent to SUS440C
|
|
food tolerance
|
Equivalent to SUS440C
|
|
coefficient of friction
|
Friction coefficient over SUS 440C
|
|
Price
|
SUS440C2/3 price only
|
It is an image graph compared to other stainless steels.
Components and mechanical and physical characteristics
Ingredient List
| Materials | C | Si | Mn | P | S | Ni | Cr | Mo | N |
|---|---|---|---|---|---|---|---|---|---|
| KWS4MA | 0.45～0.55 | Below 0.80 | Below 0.80 | Below 0.040 | Below 0.030 | Below 0.60 | 12.5～14.00 | - | - |
| SUS440C | 0.95～1.20 | Below 1.00 | Below 1.00 | Below 0.040 | Below 0.030 | Below 0.60 | 16.00～18.00 | Below 0.75 | - |
| SUS420J2 | 0.26～0.40 | Below 1.00 | Below 1.00 | Below 0.040 | Below 0.030 | Below 0.60 | 12.00～14.00 | - | - |
Mechanical and physical properties
| Materials | Hardness HV |
Density G/cm3 |
Longitudinal modulus of elasticity × 104N/mm2 |
specific heat J/(g · k) |
coefficient of thermal conductivity W/(m･k) |
Coefficient of thermal expansion × 10－6/℃ |
Point resistance μ Ω · cm
|
Magnetic |
|---|---|---|---|---|---|---|---|---|
| KWS4MA | 600～800 | 7.75 | 20.60 | 0.46 | 24.7 | 10.6 | 67 | strong magnetism |
| SUS440C | 600～800 | 7.78 | 22.05 | 0.46 | 24.2 | 10.6 | 60 | strong magnetism |
| SUS420J2 | 500～700 | 7.75 | 20.60 | 0.46 | 25.0 | 10.4 | 56 | strong magnetism |
Can meet your needs of a variety of materials!
WeChat Public Number
Address:
Foreign companies
Established：April 20, 1994