SS 420 2B Finish Strip Supplier & Exporter

Stainless Steel 420 2B Finish Strip Supplier & Exporter

Cold rolled SS 420 2B finish strip coil stacked in warehouse stockyard

Technical Product Details

Material Grade Stainless Steel 420 (UNS S42000 / Werkstoff Nr. 1.4021)
Governing Specifications ASTM A240 / ASME SA240, AISI 420, JIS SUS 420, EN 10088-2, DIN, BS, IS, AMS
Surface Finishes Cold Rolled 2B (Smooth, Matte/Semi-Reflective), BA, No.4, HRAP
Manufacturing Scope High-Carbon Martensitic Cold Rolled Strips, Precision Slitting Coils, Cut-to-Length Strips
In-House Quality Verification 100% In-House PMI handheld spectro testing, Rockwell/Brinell Hardness Testing, Vernier Caliper & Micrometer dimensional checks, Ultrasonic Testing (UT)

SS 420 2B Finish Strip Overview

Looking for SS 420 2B Finish Strip for wear-resistant components, industrial cutlery, precision parts, or stamping applications? Grade 420 is a martensitic stainless steel with around 12% chromium and a higher carbon content, offering good strength, hardness, and wear resistance after heat treatment.

Whether you need the strip for stamping, blanking, forming, grinding, or precision fabrication, you can explore the available specifications, chemical composition, sizes, weight information, heat-treatment options, and custom slitting requirements below to find a suitable option for your application.

Nirvaan Overseas is an ISO, MSME, and GeM-certified SS 420 2B strip supplier in India and SS 420 2B finish strip exporter. Certified to ASTM A240 with PMI testing and EN 10204 3.1 MTCs, we export to Saudi Arabia, Qatar, Oman, Kuwait, Germany, Italy, Netherlands, Poland, Singapore, Malaysia, Vietnam, Indonesia, and the US.

Technical Specifications

Technical Parameter Specification Scope & Processing Capabilities
Governing Specifications ASTM A240 / ASME SA240, AISI 420, JIS SUS 420, Werkstoff 1.4021, EN 10088-2, IS, AMS
Grade Variant Stainless Steel 420 (UNS S42000 / Werkstoff 1.4021 / Jindal Authorized Make Available)
Form & Types Annealed Cold Rolled Strips, Precision Slitting Coils, Hardened & Tempered Strips, Shim Stock
Dimensional Scope Thickness: 0.1 mm to 4.0 mm | Width: 10 mm to 1250 mm | Length: Continuous Coil / Cut-to-Length
Surface Finish Cold Rolled 2B (Smooth, Matte/Semi-Reflective), BA, Polished, Bright Annealed
Edge Profiles Precision Slit Edge, Deburred Edge, Smooth Rounded Edge, Mill Edge
Value-Added Processing Custom Width Rotary Slitting, Tension Leveling, Edge Conditioning, Protective PE Film

Chemical Composition & Mechanical Properties

Chemical Composition

Element SS 420 (UNS S42000) Limits
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% Min – 14.00% Max

Mechanical Properties Across Tempering Temperatures

Condition Tensile Strength (MPa) Yield Strength (MPa) Elongation (%) Hardness (HB / HRC)
Annealed (Supply State) 655 MPa 345 MPa 25% 241 HB Max
Tempered @ 204°C (399°F) 1600 MPa 1360 MPa 12% 444 HB
Tempered @ 316°C (600°F) 1580 MPa 1365 MPa 14% 444 HB
Tempered @ 427°C (800°F) 1620 MPa 1420 MPa 10% 461 HB
Tempered @ 538°C (1000°F) 1305 MPa 1095 MPa 15% 375 HB
Tempered @ 593°C (1099°F) 1035 MPa 810 MPa 18% 302 HB
Tempered @ 650°C (1202°F) 895 MPa 680 MPa 20% 262 HB

SS 202 2B Finish Strip Weight Calculator

Calculate the approximate weight of your SS 202 2B Finish Strip:

SS 420 2B cold rolled finish strip coil available in stockyard

Key Advantages of SS 420 2B Finish Strip

  • High Thermal Hardness: Heat treating through quenching and tempering elevates structural yield strength beyond 1400 MPa and hardness up to 50 HRC.
  • Exceptional Wear & Abrasion Resistance: High-carbon martensitic structure prevents surface galling, edge erosion, and premature mechanical wear in high-friction uses.
  • Optimum Soft Annealed Formability: Delivered in Condition A (annealed state), allowing easy cold stamping, fine blanking, bending, and punching before heat treatment.
  • Smooth 2B Surface Base: The cold-rolled 2B finish provides uniform thickness tolerances and a clean surface ideal for subsequent grinding, mirror polishing, or coating.
  • Cost-Effective Corrosion Defense: Contains 12–14% chromium, delivering adequate resistance to fresh water, steam, mild alkalis, organic acids, and atmospheric exposure when hardened.

Key Industrial Applications

  • Industrial Cutlery & Blade Manufacturing: Surgical scalpels, shear blades, food processing knives, and textile cutting equipment requiring high edge retention.
  • Precision Mechanical Engineering: Valve components, pump shafts, needle valves, friction plates, and heavy-duty wear rings.
  • Automotive & Aerospace Systems: Brake disc rotors, clutch plates, wiper arm components, fastener clips, and spring washers.
  • Measuring Instruments & Tools: Hand tools, scraper blades, depth gauges, micrometer frames, and precision feeler gauge stock.
  • Petrochemical & Energy Valves: Hardened valve trim, steam turbine blades, seat rings, and orifice plates exposed to high velocity flow.

Alloy Grade Selection Guide: SS 420 vs SS 304

Feature / Requirement SS 420 2B Finish Strip (UNS S42000) SS 304 2B Finish Strip (UNS S30400)
Primary Advantage High hardness & wear resistance achievable via heat treatment Superior general corrosion resistance & high ductility
Alloy Composition 12–14% Cr, 0.15% C max, Balance Fe 18–20% Cr, 8–10.5% Ni, Balance Fe
Corrosion Resistance Moderate (Best in hardened & polished surface state) High (Resists atmospheric rust & diverse mild chemicals)
Cost & Budget Highly economical martensitic grade (Nickel-free) Standard cost austenitic grade (Nickel-alloyed)
Yield Strength (0.2%) 345 MPa (Annealed) to 1420 MPa (Hardened @ 427°C) 205 MPa min (Non-hardenable by heat treatment)
Formability & Fabrication Excellent in annealed state; hardens upon thermal treatment Superior deep drawing and continuous stretch forming
Typical Selection Knives, blades, brake discs, valve trims, wear parts Kitchenware, chemical tanks, food machinery, architecture
In-Stock Availability Current Grade (Ready to Ship) View SS 304 Specs →

SS 420 2B Finish Strip

SS 420 2B Finish Strip contains 12–14% chromium and up to 0.15% carbon, forming a martensitic microstructure that hardens significantly through heat treatment. It is primarily specified for industrial cutting blades, wear-resistant valve parts, brake discs, and tools demanding extreme hardness.

SS 304 2B Finish Strip

SS 304 2B Finish Strip contains 18–20% chromium and 8–10.5% nickel, providing a stable austenitic structure with high ductility and strong atmospheric corrosion resistance. It is ideal for deep-drawn kitchenware, food processing equipment, and general structural fabrication where heat-treat hardening is not required.

Global Supply & Export Network

Nirvaan Overseas supplies certified material with complete export documentation to key international markets for marine, chemical, and energy projects:

🇮🇳 India

  • India Flag Mumbai
  • India Flag Pune
  • India Flag Chennai
  • India Flag Faridabad

Middle East

  • Saudi Arabia Flag Saudi Arabia
  • Qatar Flag Qatar
  • Oman Flag Oman
  • Kuwait Flag Kuwait

Europe

  • Germany Flag Germany
  • Italy Flag Italy
  • Netherlands Flag Netherlands
  • Poland Flag Poland

Asia Pacific

  • Singapore Flag Singapore
  • Malaysia Flag Malaysia
  • Vietnam Flag Vietnam
  • Indonesia Flag Indonesia

🇺🇸 United States

  • United States Flag Michigan
  • United States Flag Illinois
  • United States Flag Texas

Quality Assurance & Inspection

Every order dispatched from our ISO-certified processing facilities undergoes strict quality verification by experienced QA inspectors:

Inspection Stage Testing & Compliance Standard
Dimensional Checks Calibrated Micrometer & Vernier Caliper verification for exact strip thickness, slit width, and camber tolerances.
PMI & Chemical Testing 100% In-House XRF Spectro testing to verify exact grade heat chemistry before dispatch.
NDT & Defect Checks Ultrasonic Testing (UT) and optical surface inspection to guarantee zero edge burrs, cracks, or laminations.
MTC & Lab Reports Full EN 10204 3.1 / 3.2 MTC issued alongside NABL-accredited laboratory test reports.
Third-Party Inspection Fully open for pre-dispatch TPI by SGS, TUV, Bureau Veritas, DNV, or Lloyds.

Quality Assurance & Inspection

Every shipment dispatched from our processing facilities undergoes strict quality verification by experienced QA inspectors:

Inspection Stage Testing & Compliance Standard
Dimensional Checks Calibrated Micrometer & Vernier Caliper verification for exact strip thickness, slit width, and edge camber.
PMI & Chemical Testing 100% In-House XRF Spectro testing to verify exact heat chemistry and chromium content compliance before dispatch.
Hardness Verification Rockwell (HRC) and Brinell (HB) batch testing to confirm soft annealed state (Condition A) or custom hardened specs.
NDT & Surface Inspection Ultrasonic Testing (UT) and optical surface checks to guarantee zero burrs, cracks, micro-pits, or laminations.
MTC & Lab Reports Full EN 10204 3.1 / 3.2 MTC issued alongside NABL-accredited laboratory test certificates.
Third-Party Inspection Open for pre-dispatch TPI by SGS, TUV, Bureau Veritas, DNV, or Lloyds.

Frequently Asked Questions

Q: Is SS 420 2B strip hardenable by heat treatment?

A: Yes, Grade 420 is a martensitic alloy that reaches hardness up to 50 HRC when quenched from 980–1035°C and tempered.

Q: Is this product supplied in annealed condition?

A: Yes, we supply Grade 420 2B strip in soft annealed Condition A (max 241 HB) so you can easily blank, stamp, or bend parts prior to hardening.

Q: Why choose SS 420 2B strip for cutlery and blade applications?

A: Its high carbon content allows the strip to maintain a sharp cutting edge and resist surface abrasion after proper hardening and polishing.

Q: What does a 2B finish mean on SS 420 strip?

A: A 2B finish is a cold-rolled, heat-treated, and pickling finish with a light pass, resulting in a smooth, matte to semi-reflective surface.

Q: Which major countries do you export to?

A: We regularly export to Saudi Arabia, Qatar, Oman, Kuwait, Germany, Italy, Netherlands, Poland, Singapore, Malaysia, Vietnam, Indonesia, and the United States.

Request a Quote for SS 420 2B Finish Strip

Looking for an authentic SS 420 2B strip supplier in India or a global SS 420 2B finish strip exporter? Partner with our ISO-certified, MSME, and GeM-registered team at Nirvaan Overseas for factory-direct rates, custom coil slitting, EN 10204 3.1 certification, and quick worldwide dispatch. If you have any questions about the products or services, send us an email at

  • Email: sales@nirvaanoverseas.com

  • Phone / WhatsApp: +91 77386 88058