"Mehta Metal Industries", founded in 1978 by Babulal Mehta, is one of India's oldest and most trusted suppliers of high-quality stainless steel products.

SS 420 / 1.4021 Flat Bars Supplier & Exporter

SS 420 / 1.4021 Stainless Steel Flat Bars

SS 420 / 1.4021 Flat Bars Overview

Mehta Metal Industries is an SS 420 / 1.4021 Flat Bars Manufacturer in India, Supplier and Exporter, supplying martensitic stainless steel for cutting tools, surgical instruments, pump shafts and valve components. Its 12–14% chromium and higher carbon content allow it to develop high hardness, strength and wear resistance through hardening and tempering.

We offer Stainless Steel 420 Flat Bars in different sizes and heat-treatment conditions, subject to availability. Contact us for pricing, Material Test Certificates (MTC) and inspection documentation.

Specifications of SS 420 Flat Bars

Specification Details
Product Name SS 420 Stainless Steel Flat Bars
Grade Designation 420 / UNS S42000 / 1.4021
EN Grade Name X20Cr13
Material Type Martensitic Chromium Stainless Steel
Applicable Standards ASTM A276 / EN 10088-3
Thickness 2–150 mm
Width 10–500 mm
Length Standard or cut length, subject to availability
Heat Treatment Annealed, Hardened and Tempered
Finish Hot Rolled, Black, Pickled, Machined or Ground, subject to availability

Equivalent Grades of SS 420 / 1.4021

Standard Werkstoff Nr. UNS JIS EN Grade BS
SS 420 1.4021 S42000 SUS 420J1 X20Cr13 420S29

Chemical & Mechanical Properties

Chemical Composition of SS 420 Flat Bars (%)

Element Symbol Composition
Carbon C 0.15 Max
Manganese Mn 1.00 Max
Silicon Si 1.00 Max
Phosphorus P 0.040 Max
Sulfur S 0.030 Max
Chromium Cr 12.00–14.00

Mechanical Properties of SS 420 Flat Bars

Tempering Temperature Tensile Strength (MPa) Yield Strength 0.2% Proof (MPa) Elongation (% in 50 mm) Brinell Hardness (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

SS 420 Flat Bar Weight Calculator

Mehta Metal Industries

Material Grade: SS 420 / 1.4021 | Density: 7.74 g/cm³

Width (mm) 10 – 500
Thickness (mm) 2 – 150
Length per piece (M)
Standard lengths up to 7 M.
Quantity (pieces)
3D Interactive Flat Bar Preview 🖱️ Drag to rotate view

Width:  |  Thickness:  |  Length:

Estimated Total Weight

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Per Metre

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Types of SS 420 / 1.4021 Flat Bars

01

Hot Rolled SS 420 Flat Bars

Used for manufacturing industrial knife blanks, shear blades and heavy-duty cutting components.

02

Black SS 420 Flat Bars

Used as raw material for producing pump shafts, valve stems and machine components requiring further machining.

03

Pickled SS 420 Flat Bars

Suitable for manufacturing cutlery blanks, surgical instrument parts and fabricated components where surface scale removal is required.

04

Machined SS 420 Flat Bars

Used for precision valve parts, needle valves, pump components and hardened machine fittings.

05

Ground SS 420 Flat Bars

Used for precision cutting tools, guide components and mould parts requiring smoother surfaces and closer dimensional control.

Countries We Supply and Export SS 420 / 1.4021 Flat Bars

India

India

Europe

Germany
United Kingdom
France
Italy
Netherlands
Belgium
Spain
Poland
Austria
Sweden
Finland
Czechia
Portugal
Romania

North America

United States
Canada
Mexico
Guatemala
Belize
Honduras
El Salvador
Nicaragua
Costa Rica
Panama

Applications and Industries

SS 420 Flat Bars are used for components that require hardenable stainless steel, cutting performance and resistance to mechanical wear.

  • Cutlery Manufacturing: Used for knife blades, kitchen cutlery, scissors and cutting tools.
  • Medical Equipment: Used for surgical instruments, dental tools and reusable medical components.
  • Automotive Engineering: Used for shafts, gears, fasteners and selected mechanical components.
  • Plastic Moulding: Used for mould inserts, tooling components and wear-resistant machine parts.
  • Food Processing: Used for cutting blades, processing knives and equipment components.
  • Industrial Machinery: Used for shear blades, guide parts, machine shafts and precision fittings.

Quality Assurance

Mehta Metal Industries checks material grade, dimensions and surface finish against the agreed order specifications.

  • Grade Verification: Material grade and applicable standard are checked against purchase requirements.
  • Test Documentation: Material Test Certificates (MTCs) can be provided with the supply.
  • Size Checks: Thickness, width and length are inspected against specified dimensions.
  • Heat Treatment Verification: The supplied condition is checked against the agreed order requirements.
  • Quality Certifications: ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018, within their respective certified scopes.
  • Export Preparation: Packaging and shipping documents are arranged according to destination and order requirements.

Frequently Asked Questions

  • 1. Are SS 420 and 1.4021 Flat Bars equivalent?
    Yes. AISI 420, UNS S42000 and EN 1.4021 are commonly associated with this martensitic stainless steel grade. Verify the material certificate before substitution.
  • 2. What are SS 420 Flat Bars used for?
    They are used for knife blades, surgical instruments, pump shafts, valve components, shear blades and industrial tooling.
  • 3. Can SS 420 Flat Bars be hardened?
    Yes. SS 420 can be hardened through heat treatment involving quenching and tempering. The final hardness depends on the heat-treatment process and section size.
  • 4. Can you supply SS 420 / 1.4021 Flat Bars to the USA and Canada?
    Buyers in the USA and Canada can enquire about SS 420 Flat Bars based on their dimensions, heat-treatment condition, certification and shipping requirements.
  • 5. Can you export Stainless Steel 420 Flat Bars to European countries?
    Enquiries are welcome from Germany, France, Italy, Spain, Poland, the Netherlands, Belgium, Austria and other European countries, subject to supply and shipment feasibility.

Request a Quote for SS 420 Flat Bars

Looking for an SS 420 / 1.4021 Flat Bars Manufacturer in India, Supplier or Exporter? Contact Mehta Metal Industries with your required dimensions, quantity, heat-treatment condition, finish and documentation requirements for a quotation.