What is 4Cr13 material equivalent to?
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What is 4Cr13 stainless steel?
4Cr13 steel is a martensitic stainless steel commonly used in cutlery production. It contains a relatively small amount of carbon and chromium (around 0.40% – 1.00%). The material has good hardenability, wear, strength, and corrosion resistance.
What material is 4Cr13 equivalent to?
4Cr13 is a martensitic stainless steel widely used in cutting tools, valves, pumps, and machine parts.4Cr13 is equivalent to ISO standard X39Cr13, European standard X39Cr13 (1.4031), and Japanese standard SUS420J2. In the United States, it is sometimes compared to AISI 420, although their carbon content may differ.
| Standard | Equivalent Grade |
|---|---|
| ASTM / AISI | 420 (AISI 420) |
| EN / DIN | X46Cr13 (1.4034) |
| JIS | SUS420J2 |
| ISO | X46Cr13 |
| GB (China) | 4Cr13(national standard) |
4Cr13 Stainless Steel Data Sheet (Chemical & Mechanical Properties)
Chemical Composition (%)
| Code in GB/T 20878 | Unified numerical code | New Grade | Original Grade | Chemical compositions (mass fraction) % | ||||||||||
| C | Si | Mn | P | S | Ni | Cr | Mo | Cu | N | Other elements | ||||
| 104 | S42040 | 40Cr13 | 4Cr13 | 0.36~0.45 | 0.6 | 0.8 | 0.04 | 0.03 | (0.60) | 12.00 ~ 14.00 | – | – | – | – |
Mechanical Properties (Annealed Condition)
| Code in GB/T 20878 | Unified numerical code | New Grade | Original Grade | Mechanical property of test piece through quench tempering | Hardness of annealed steel bars | ||||||
| Proof strength, non-proportional extension Rp0.2/(N/mm2) | Tensile strength Rm/(N/mm2) | Stretching rate after breaking A/% | Section shrinkage rate Zb/% | Impact absorbing energy Aku2d/J | HBW | HRC | HBW | ||||
| No less than | No more than | ||||||||||
| 104 | S42040 | 40Cr13 | 4Cr13 | – | – | – | – | – | 50 | 235 | |
Physical properties
| Code in GB/T 20878 | Unified numerical code | New Grade | Original Grade | Density /(g/cm3) 20 ℃ | Melting point ℃ | Specific heat capacity (kJ/Kg · K) | Thermal conductivity (W/m·K) | Coefficients of linear thermal expansion (10-6/K): | Electrical Resistivity (Ω·mm2/m) 20 ℃ |
Longitudinal modulus of elasticity (kN/mm2) 20 ℃ | ||
| 100 ℃ | 500 ℃ | 0～100 ℃ | 0 ～ 500 ℃ | |||||||||
| 104 | S42040 | 40Cr13 | 4Cr13 | 7.75 | 0.46 | 28.1 | 28.90 | 10.50 | 12.00 | 0.590 | 215 | |
Difference Between 4Cr13 and 3Cr13 Steel
The main difference lies in the carbon content of 4Cr13 (approximately 0.4%), which is higher than that of 3Cr13 (approximately 0.3%). This results in higher hardness, better wear resistance, and superior edge retention for 4Cr13. 3Cr13, on the other hand, is more affordable and easier to sharpen. Therefore, 4Cr13 is more suitable for demanding applications such as cutting tools and high-load molds, while 3Cr13 is better suited for basic tools and equipment where ease of maintenance is paramount.
What is the difference between 4Cr13 and 440C steel?
440C contains significantly more carbon (1.0% vs 0.4%) and chromium (17% vs 13%) than 4Cr13, offering superior edge retention and comparable corrosion resistance. 440C can achieve much higher hardness (58-60 HRC) but typically costs 2-3 times more than 4Cr13.
If you have any project needs for 4Cr13 stainless steel, please feel free to place an order. GNEE has a large inventory of popular products for you to choose from. It can be processed into various practical product forms, including plates, coils, tubes, bars, and wires. For detailed chemical composition and free samples, please contact our factory immediately. We offer competitive prices and excellent service.Email: info@gneestainless.com
