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Round Bars

420 Stainless Steel Round Bars

420 stainless steel is a higher carbon adaptation of 410; like most non-stainless steels it can be solidified by warmth treatment. 420 stainless will contain at least 12 for each penny chromium, sufficiently adequate to give it consumption resistance properties. It has great malleability in the tempered condition and is equipped for being solidified up to Rockwell Hardness 50HRC, the most elevated hardness of the 12 for each penny chromium grades. Its best erosion resistance is accomplished when the metal is solidified.

Martensitic stainless steels are streamlined for high hardness. Manufacture must be by systems that take into account poor weldability and as a rule additionally considered a last solidify and temper heat treatment. Consumption resistance is lower than the normal austenitic evaluations, and their valuable working temperature extent is restricted by their loss of flexibility at below zero temperatures and loss of quality by over-treating at raised temperatures.

ASTM A276 Stainless Steel 420 Bar & Rod, werkstoff nr. 1.4021 Square Bar, Forged Bar, Hex Bar, Polish Bar, Bright Bar, Black Bar Suppliers.

Standard SS 420
UNS S42000
WERKSTOFF NR. 1.4021
JIS SUS 420 J1
BS 420S29
EN X 20 Cr 13

Specification


Standard 420 / 1.4021
Range 3.17mm to 350mm dia
Designation ASTM A276, ASME SA276
Finish Bright, Black, Polish, Export Bright
Thickness 4.0mm - 100mm
Type Bar, Bright Bar, Black Bars, Hex Bar, Square Bar, Rods, Polish Bar, Forged Bar, Round Bar
Length Random, Fix & Cut Length

Chemical Composition

Grade

C

Mn

Si

P

S

Cr

420

Min.

max.

0.15

-

-

1

-

1

-

0.040

-

0.03

12.0

14.0


Mechanical Properties


Tempering Temperature (°C)

Tensile Strength (MPa)

Yield Strength
0.2% Proof (MPa)

Elongation (% in 50mm)

Hardness Brinell (HB)

Impact Charpy V (J)

Annealed *

655

345

25

241 max

-

204

1600

1360

12

444

20

316

1580

1365

14

444

19

427

1620

1420

10

461

#

538

1305

1095

15

375

#

593

1035

810

18

302

22

650

895

680

20

262

42

* Annealed tensile properties are typical for Condition A of ASTM A276; annealed hardness is the specified maximum.
# Tempering of this steel should be avoided in the range 425-600°C


Physical Properties


Grade Density (kg/m3) Elastic Modulus (GPa) Mean Coefficient of thermal Expansion (m/m/0C) thermal Conductivity (W/m.K) Specific Heat 0-1000C (J/kg.K) Electrical Resistivity (n.m)
0-1000C 0-3150C 0-5380C at 1000C at 5000C

420

7800

200

10.3

10.8

11.7

24.9

-

460

550


TYPES OF STAINLESS STEEL 420 ROUND BARS & RODS


•   Stainless Steel 420 Bars
•   Stainless Steel 420 Hexagon Bars
•   Stainless Steel 420 Cold Drawn Bars
•   Stainless Steel 420 Threaded Rods
•   Stainless Steel 420 Hollow Bar
•   Stainless Steel 420 Polish Bars
•   AISI 420 Round Rod

•   Stainless Steel 420 Rods
•   Stainless Steel 420 Forged Round Bars
•   Stainless Steel 420 Square Bars
•   Stainless Steel 420 Threaded Bars
•   Stainless Steel 420 Spring Steel Bars
•   Stainless Steel 420 Black Bars
•   AISI 420 Bars


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