20Cr13 martensitic steel is generally used for tableware, kitchenware, and knives
High hardness in quenched state
Good corrosion resistance
Chemical Composition
Grade | C≤% | Si≤% | Mn≤% | P≤% | S≤% | Ni≤% | Cr |
420J1/2Cr13 | 0.16~0.25 | 1.00 | 1.00 | 0.040 | 0.030 | 0.60 | 12.00~14.00 |
Standards
EU EN | JAPAN JIS | China GB | USA ---- |
1.4021 | SUS 420J1 | 20Cr13 | 420;S42000 |
Physical Properties Parameters
Density Kg/20℃ | Melting point/℃ | Specific heat/ [kJ/(kg· K)] 0℃~100℃ | Thermal conductivity/[W(m·K)] | Linear expansion coefficient/(10-6/K) | ResistivityΩ·mm2/m) 20℃ | Longitudinal elastic modulus(kN/mm2)20℃ | ||
100℃ | 500℃ | 0~100℃ | 0~500℃ | |||||
7.75 | 1470~1510 | 0.46 | 22.2 | 26.4 | 10.3 | 12.2 | 0.55 | 200 |
Application
Mainly used in the tool industry, but also in nozzles, valve seats, valves, etc.
Tableware: kitchen knives, scissors and other cutting tools.
Automotive parts: some automotive parts that require medium corrosion resistance.
Industrial parts: shafts, gears and various mechanical parts.
Medical devices: some surgical instruments that require medium corrosion resistance.
Consumer goods: household items such as razors and high-end kitchenware.
Mechanical properties
Tensile strength(Min) | Yield Strength(Min) | Elongation(Min)% | Hardness(Max) | |
Mpa | Mpa | 50mm | HRB | HV |
520 | 225 | 18 | 97 | 234 |
Application
Automotive
Architecture
Aerospace
Industrial Applications
Supply size
Thickness | Thickness Tolerance | Width | Width Tolerance | ||
mm | inches | mm | mm | inches | mm |
0.04-1.2 | 0.002-0.047 | MIN ±0.003mm | 4.2-700 | 0.165-27.580 | MIN ±0.02 |
1.2-4.5 | 0.047-0.122 | MAX ±0.05mm | 21-775 | 0.8274-30.535 | MAX ±0.1 |
3.0-25.4 | - | 600-2000 | - |
(Length: coil type or it can be produced as customer requirements)
Inner and outer diameter
| Inner Diameter | 300、400、500（Customized according to the customer's machine size） |
| Outer diameter | The outer diameter range is determined based on the width of the material required by the customer and the maximum weight of a single trailer. |
The weight of a single trailer generally does not exceed 2 tons to ensure that the goods will not be damaged during transportation and moving.
Surface
DSM offers a variety of different surface treatments for stainless steel plates. There are1U, 1C, 1D, 1E, 2B, BA, No.4, TR, HL etc.
Edge
The edge of the steel strip is trimmed, and the burr height is 10% mm. If there are special requirements for the edge, it can be scraped.
Heat treatment system
Annealing treatment: fast cooling at about 750℃ or slow cooling at 800℃ ~ 900℃ |
Quenching:fast cooling at 980℃ ~ 1040℃ |
Tempering: air cooling at 150℃ ~ 400℃ |
Supply Form
DSM has a professional team and adopts a variety of packaging standards to ensure that the products arrive at the customer's warehouse intact. After packaging, the product looks neat and beautiful, and it can also prevent rust, moisture, dust, pressure, collision, and scratches. Small wooden blocks are placed in the middle to facilitate customers to move the steel belt.
Optional packaging materials: waterproof paper, blue film, plastic wrap, internal and external corner guards, paper, blue leather, plastic cloth, customized wooden racks, fumigated wooden racks, iron racks, wooden boxes, wooden strips, iron corner guards, wrinkled wire paper, desiccant, isolation board, etc.
Packaging Directions
 |  |
Stand Ba | Flat bag |
Label: The label on each pallet shows the relevant material information, including coil number, steel type, size, net weight, etc.; it is convenient for customers to count the goods.
