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) |
Table of Contents
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 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 |
| 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 |
| 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 |
Calculate the approximate weight of your SS 202 2B Finish Strip:
| 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 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 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.
Nirvaan Overseas supplies certified material with complete export documentation to key international markets for marine, chemical, and energy projects:
Saudi Arabia
Oman
Kuwait
Germany
Italy
Netherlands
Poland
Singapore
Malaysia
Vietnam
Indonesia
Michigan
Illinois
Texas
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. |
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. |
A: Yes, Grade 420 is a martensitic alloy that reaches hardness up to 50 HRC when quenched from 980–1035°C and tempered.
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.
A: Its high carbon content allows the strip to maintain a sharp cutting edge and resist surface abrasion after proper hardening and polishing.
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.
A: We regularly export to Saudi Arabia, Qatar, Oman, Kuwait, Germany, Italy, Netherlands, Poland, Singapore, Malaysia, Vietnam, Indonesia, and the United States.
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