What is 20Cr13 steel?
20Cr13 steel is a low-carbon chromium alloy martensitic stainless steel, similar to 440C steel. The main difference between 20Cr13 and 440C steel is that 20Cr13 steel has a much lower chromium content, making it easier to machine and polish.
What is the ASTM equivalent of X20Cr13?
1.4021 - X20Cr13 – AISI 420 – SAE 420 – ASTM F899.
What is 30Cr13 steel?
30Cr13 steel is a martensitic stainless steel. Martensitic stainless steel is a type of stainless steel whose mechanical properties can be adjusted through heat treatment. 30Cr13 steel has higher strength, hardness, and hardenability than 410 (1Cr13) steel and 420J1 (20Cr13) steel. It has good corrosion resistance to dilute nitric acid and weak organic acids at room temperature (700℃), but its weldability is not as good as 410 and 410J1 steel.
What is X30Cr13 stainless steel equivalent to?
X30Cr13 stainless steel is equivalent to AISI 420 in the United States, SUS420J2 in Japan, Z30Cr13 in France, and 3Cr13 in China. It is also known by its European standard number, 1.4028.
Differences Between 2Cr13 steel and 3Cr13 steel
Chemical Composition
| Steel Grade | Chemical Composition (%) | ||||||
| C | Si (≤) | Mn (≤) | P (≤) | S (≤) | Cr | Ni (≤) | |
| 2Cr13 | 0.16 – 0.25 | 1.000 | 1.000 | 0.035 | 0.030 | 12.00 – 14.00 | 0.60 |
| 3Cr13 | 0.26 – 0.35 | 1.000 | 1.000 | 0.035 | 0.030 | 12.00 – 14.00 | 0.60 |
Mechanical Properties
| Mechanical Properties | |||||||
| Steel Grade | Tensile strength (MPa) | Yield strength (MPa) | Elongation % | Reduction in area % | Impact energy Akv(J) | Hardness (quenching & tempering) | Hardness (Annealing) |
| 2Cr13 | ≥635 | ≥440 | ≥20 | ≥50 | ≥63 | ≤ 192HB | ≤ 223HB |
| 3Cr13 | ≥735 | ≥540 | ≥12 | ≥40 | ≥24 | ≤ 217HB | ≤ 235HB |
What is the difference between 2Cr13 and 3Cr13?
2Cr13 and 3Cr13 have little difference in mechanical properties such as yield strength, tensile strength, and annealing hardness. After heat treatment, 3Cr13 is higher in hardness than 2Cr13, but the corrosion resistance is worse than 2Cr13.
What are the differences between 20Cr13 and 30Cr13 stainless steel?
The main difference is that 30Cr13 has a higher carbon content, making it harder but slightly less corrosion-resistant than 20Cr13, which is easier to machine and has better corrosion resistance. 20Cr13 has a carbon content of 0.16–0.25%, while 30Cr13 has a carbon content of 0.26–0.35%.
What are the differences between 14C28N and X30Cr13?
14C28N has a higher carbon and nitrogen content. Compared to X30Cr13, 14C28N offers significantly better edge retention while maintaining excellent corrosion resistance. X30Cr13, due to its lower hardness, may have slightly better toughness, but it is inferior to 14C28N in most performance indicators.
Is 2Cr13 stainless steel good for knives?
Yes, 2Cr13 stainless steel is good for knives, especially for kitchen and general-purpose use, due to its good corrosion resistance, hardness, and affordability. However, it can be brittle, particularly at high hardness levels, and may not hold an edge as well as higher-end steels.
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