Product Details
420 Stainless Steel Sheet Inox 420 Metal Sheet Cold Rolled
Stainless Steel 420 Sheet
Alloy 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 up to Rockwell hardness 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. Corrosion resistance is lower than the common
austenitic grades and their useful operating range is limited by
their loss of ductility at sub-zero temperatures and loss of
strength by over-tempering at elevated temperatures. Its best
corrosion resistance is achieved when the metal is hardened and
surface ground or polished.
Specifications: UNS S42000
APPLICATIONS:
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:
- Cuttery
- Knife blades
- Surgical instruments
- Needle valves
- Shear blades
- Scissors
- Hand tools
STANDARDS:
- ASTM/ASME: UNS S42000
- EURONORM: FeMi35Cr20Cu4Mo2
- DIN: 2.4660
CORROSION RESISTANCE:
- Less resistant than the austenitic grades and the 17% chromium
ferritic alloys
- Good resistance in the hardened condition to the atmosphere, foods,
fresh water, and mild acids
- Resistance lowered in the annealed condition
- Best with a smooth surface finish
HEAT RESISTANCE:
- Not recommended for use above the relevant tempering temperature
because of reduction in mechanical properties
- Scaling temperature is approximately 1202oF (650oC)
Chemical Properties:
| C | Mn | Si | P | S | Cr |
---|
420 | 0.15 max | 1.00 max | 1.00 max | 0.04 max | 0.03 max | min: 12.0 max: 14.0 |
| C | Mn | Si | P | S | Cr |
---|
Mechanical Properties:
empering Temperature (°C) | Tensile Strength (MPa) | Yield Strength 0.2% Proof (MPa) | Elongation (% in 50mm) | Hardness Brinell (HB) |
---|
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. |
Company Profile
Jiangsu Mittel Steel Industrial Limited is located in Wuxi City, a
beautiful city near Shanghai. Wuxi is close to Shanghai (BAO STEEL)
,Zhangjiagang (ZPSS),Ningbo (BAO XIN),KUN SHAN (DKSS), enjoy
excellent geographic location and convenient water, land and air
transportation. , Wuxi become the biggest stainless steel sheet
,plate and coil supply Centers in China. Jiangsu Mittel Steel
Industrial Limited was established in 1998 years. as one of the
largest stockists and manufacturers of industrial grade Stainless
Steel products and derivatives in Wuxi ,We keep a stock of 50000
tons every month, so we can delivery goods in fast time.
Our company supplies cold/hot-rolled stainless steel
sheets,stainless steel coils and stainless steel Plate to many
steel factories from athome and abroad, including Shanxi Taigang
Iron& Steel CO, . Ltd (TISCO)Zhangjiagang Pohang (ZPSS), Shanghai
BAO STEEL, Ningbo Baoxin and steel factories in Taiwan area,
Mainland Chinese and foreign countries and regions.
Our long-term business lines are
201.202.304(1.4301).304L.316.316L(1.4404).430.409L, 309S
,310S(1.4845).317L.904L.S31803(1.4462).S32750.S32760, Finish: 2B,
BA, NO. 1 NO. 4, HL, 8K and so on...Meanwhile, our company is also
engaged in the long-term supply of homemade & imported medium and
thick plates, galvanized and carbon steel products.
Adhering to the principle of "quality first and customer
foremost",our company will offer long-term service to nationwide
manufacturers of household appliances, elevators, tableware,
ornaments, tanks and machines. We can offer precise frosted
wiredrawing, 8K mirror finishing and skim board oil-abrasion of
various specifications at any time. The precisely-processed
products will meet your requirements for high quality. Our company
is a modern enterprise integrating distribution and storage.
If you are interested in any of our products or would like to
discuss a custom order, please feel free to contact us. We are
looking forward to forming successful business relationships with
new clients around the world in the near future.

