• 420 Stainless Steel Bar
  • 420 Stainless Steel Bar

420 Stainless Steel Bar

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Product Details

Angus Steel is a professional manufacturer, supplier and stockist of 420 stainless steel round bar, square bar, flat bar, hexagon bar and rod with large stock, good quality and competitive prices for sale in China.


Below is the specification we could offer:

Product420 Stainless Steel Bar
FinishPickling and Bright
SizeRound: Cold drawn: 1.0mm-30mm, Hot rolled: 14mm-130mm,Hot Forged: 130mm-1000mmSquare:10mmx10mm-150mmx150mmFlat: 10mmx5mm-200mmx10mmHex: S6mm-S60mm
LengthAs per client's requirement, max length: 12000mm
StandardASTM A276, ASTM A479
Grade420/SUS420J2/1.4021
Package:Standard export sea-worthy package.


Introduction

Grade 420 stainless steel is a high-carbon steel with a minimum chromium content of 12%. Like any other stainless steel, grade 420 can also be hardened through heat treatment. It offers good ductility in its annealed state and excellent corrosion resistance properties when the metal is polished, surface grounded or hardened. This grade has the highest hardness - 50HRC - among all the stainless steel grades with 12% chromium.

Stainless steel grades that are similar to grade 420 stainless steels include martensitic steels such as the other versions of grade 420, having vanadium, sulphur and molybdenum in their composition, and the grade 440 series. Non-standard grade 420C has carbon content that is little higher than that of grade 420.

Martensitic stainless steels are ones with high hardness and high carbon content. These steels are generally fabricated using methods that require hardening and tempering treatments. The operating conditions of martensitic steels are affected by loss of material’s strength at high temperatures, and decrease in ductility at negative temperatures.

Key Properties

The following properties are mentioned for bar products in ASTM A276. The specification may not necessarily be similar for other forms, such as forgings and plate.

Composition

The compositional ranges of grade 420 stainless steels are given in following table:

Table 1 - Compositional ranges of grade 420 stainless steels

GradeCMnSiPSCr
420min.max.0.15--1-1-0.040-0.0314.0



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