Stainless Steel, Carbon Steel, Alloy Steel Manufacturer, Supplier in India, Check Price List
  • AN ISO 9001-2008 | 14001-2004 | OHSAS 18001-2007 | PED CERTIFIED 97/23/EC
Ratnam Steel

Stainless Steel 420 Round Bars

Our benefactors can benefit these Stainless Steel 420 Rods from us at the most insignificant expenses. As for national and worldwide nature of raw materials, we additionally offer these Stainless Steel Round Bars in altered sizes and thicknesses according to particular requests by our regarded customers at business sector driving costs.

Alloy 420 is a hardenable, martensitic stainless steel that is a change of Alloy 410. Like 410, it contains at least 12% chromium, sufficiently adequate to give consumption safe properties. Alloy 420 has higher carbon content than Alloy 410 which is intended to upgrade quality and hardness attributes. Martensitic stainless steels are intended for high hardness and now and again different properties are to some degree traded off. Corrosion resistance is lower than the regular austenitic evaluations and their valuable working reach is constrained by their loss of flexibility at below zero temperatures and loss of quality by over-treating at hoisted temperatures.

Our benefactors can benefit these Stainless Steel 420 Rods from us at the most insignificant expenses. As for national and worldwide nature of raw materials, we additionally offer these Stainless Steel Round Bars in altered sizes and thicknesses according to particular requests by our regarded customers at business sector driving costs.

Specification

Standard 410 / 1.4006
420 / 1.4021
430 /1.4016
431 / 1.4057
440 A /1.4109
440 B / 1.4112
440 C /1.4125
446 / 1.4762
Designation ASTM, ASME, AISI A 276 , SA 276, A 479, SA 479
Range 3 MM TO 350 MM DIA
Finish Bright, Polish & Black
Form Round, Square, Hex (A/F), Rectangle, Wire (Coil Form), Wire-mesh, Billet, Ingot, Forging Etc.
Application Cutlery, Steam and gas turbine blades, Kitchen utensils, Bolts, nuts, screws, Pump and valve parts and shafts, Mine ladder rugs, Dental and surgical instruments, Nozzles, Hardened steel balls and seats for oil well pumps.

Chemical Composition

Grade C Mn Si P S Cr Ni
410 0.15 max 1.00 max 1.00 max 0.04 max 0.03 max min: 11.5
max: 13.5
0.50 max
420 0.15
max
1.00
max
1.00
max
0.04
max
0.03
max
min: 12.0
max: 14.0
-
430 0.12 max 1.00 max 1.00 max 0.040 max 0.030 max 16.0 - 18.0 0.75 max
431

0.20 max 1.00 max 1.00 max 0.040 max 0.030 max 15.00 - 17.00 1.25 - 2.50
440A

0.6 - 0.75 1.00 max 1.00 max 0.04 max 0.030 max 16.00 - 18.00 -
440B

0.6 - 0.75 1.00 max 1.00 max 0.04 max 0.030 max 16.00 - 18.00 -
440C

0.95 - 1.20 1.00 max 1.00 max 0.040 max 0.030 max 16.00 - 18.00 -

Mechanical Properties of SS 420

Tempering 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.

Products List