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420 Stainless Steel Strips

We are a reliable manufacturer and trader, we have on offer for our clients a premium quality range of Stainless Steel Strip Grade 420. These are precisely designed and made using high grade material to assure optimum quality. Keeping in mind the variegated demands of our clients, we also offer these strips to clients in customized specifications and at cost effective prices.

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.

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 800°F (427°C) due to quick hardening and loss of corrosion resistance.

Used in Food Industries, Chemical Industries , Electrielcal Industries, Genrater Industries, Shaft Industries, Cement Industries, Gas Industries, Power Project etc..

Specifications :

Standard : ASTM A240, ASME SA240
Size : 1000 x 2000, 1220 x 2440, (4' x 8'), 1250 x 2500, 1500 x 3000 To 6000, 2000 x 4000 To 6000
Thickness : 0.3 mm To 120 mm

Stainless Steel 420 Strip Chemical Properties :

C Mn Si P S Cr
420 0.15
min: 12.0
max: 14.0

Stainless Steel 420 Strip Mechanical Properties :

Tempering Temperature (°C) Tensile Strength (MPa) Yield Strength
0.2% Proof (MPa)
(% in 50mm)
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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