Stainless steel 420 is a hardenable, martensitic stainless steel that is a modification of Alloy 410. Similar to 410, it contains a minimum of 12% chromium, just sufficient enough to give corrosion resistant properties. Alloy 420 has higher carbon content than Alloy 410 which is designed to optimize strength and hardness characteristics. It has good ductility it the annealed condition but is capable of being hardened to a minimum Rockwell hardness of 50 HRC, the highest hardness of the 12% chromium grades. Due to its hardening properties, Alloy 420 is not often welded, although it is possible. Martensitic stainless steels are designed for high hardness and sometimes other properties are to some degree compromised.
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Stainless Steel Sheet 420 is a martensitic stainless steel that provides good corrosion resistance. It is similar to 410 with increased strength and hardness and is magnetic in both the annealed and hardened conditions. Maximum corrosion resistance is attained only in the fully hardened condition. Alloy 420 can be hardened by cold working and by heat treating. It is capable of being heat treated to a hardness of HRC 51 minimum.
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EN 10088-2, ASTM A240, EN 10028-7, EN 10259, ISO 9445
ASTM/ASME: UNS S42000
EURONORM: FeMi35Cr20Cu4Mo2
DIN: 2.4660
|
C |
Mn |
Si |
P |
S |
Cr |
|
|
420 |
0.15 |
1.00 |
1.00 |
0.04 |
0.03 |
min: 12.0 |
|
Density |
Thermal Conductivity |
Electrical |
Modulus of |
Coefficient of |
Specific Heat |
|
7750 |
24.9 at 212°F |
550 (nΩ.m) at 68°F |
200 GPa |
10.3 at 32 – 212°F |
460 at 32°F to 212°F |
|
– at 932 °F |
10.8 at 32 – 599°F |
||||
|
17.7 at 32-1000°F |
|
empering Temperature (°C) |
Tensile Strength (MPa) |
Yield Strength |
Elongation |
Hardness Brinell |
|
Annealed * |
655 |
345 |
25 |
241 max |
|
399°F (204°C) |
1600 |
1360 |
12 |
444 |
|
600°F (316°C) |
1580 |
1365 |
14 |
444 |
|
800°F (427°C) |
1620 |
1420 |
10 |
461 |
|
1000°F (538°C) |
1305 |
1095 |
15 |
375 |
|
1099°F (593°C) |
1035 |
810 |
18 |
302 |
|
1202°F (650°C) |
895 |
680 |
20 |
262 |
|
* Annealed tensile properties are typical for Condition A of ASTM A276; annealed hardness is the specified maximum. |
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Alloy 420 is used for a variety of applications where good corrosion and outstanding hardness is necessary. It is not usually used at temperatures exceeding 800oF (427oC) due to quick hardening and loss of corrosion resistance. Examples of applications that use alloy 420 include:
CORROSION RESISTANCE:
HEAT RESISTANCE:
MACHINABILITY
WELDING
HOT WORKING
COLD WORKING
ANNEALING
TEMPERING
HARDENING
HYT is a professional steel product manufacturer and source factory. With the support of the most professional steel manufacturers and a large number of customers, we can not only provide you with ordinary steel but also help you find very personalized steels, such as special steel grades, Special sizes, special craft shapes, etc.
HYT adopts standard export shipping packaging and bundles steel strips according to the size of the stainless steel plate. According to our delivery experience, a 20-foot container can hold 22 tons of stainless steel, and a 40-foot container can hold 25 tons of stainless steel. For larger orders, we use bulk vessels to transport you, and the price is cheaper. Also, we can customize the packaging according to the needs of customers.
We offer our customers the opportunity to increase profitability by meeting their just-in-time production schedules and offering customized services to meet end-user-specific requirements. HYT has always been committed to improving customer service and product quality and providing high-value solutions for customers’ businesses. Satisfying the needs of customers is our daily work goal!
HYT promises new clients a 10% discount on their first order.
At HYT, Larger your Order, Bigger the Discount（5% At Least）
To learn more about new clients order discount of our 420 stainless steel sheet, contact HYT sales representative and get a discount quote now！
HYT Metal is a professional manufacturer and source factory engaged in the research, development, production, and service of various metal products such as sheet, pipe, bar ,coil, strip, fitting made of stainless steel, carbon steel, alloy steel ,nickel alloy, copper alloy ,titanium alloy, etc. Our factory is equipped with multiple advanced cold drawing and cold rolling production lines, reflecting over 15 years of rich experience in both the domestic and international markets. Whether you require any metal products, HYT is committed to delivering products that excel in strength, durability, and performance, ensuring satisfaction in every aspect of our service.
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Moreover, our products are CE certified, compliant with European safety standards, and UL certified to meet the rigorous requirements of both the United States and Canada. 
