40KH13 Stainless Steel Supplier, Manufacturer & Exporter in India
Russian Metals is a leading supplier, manufacturer, and exporter of premium-quality 40KH13 Stainless Steel, 40Х13 Stainless Steel, and martensitic stainless steel products. Our high-performance chromium stainless steel materials are widely used in industrial, engineering, automotive, and tool manufacturing applications.
Product Overview of 40KH13 Stainless Steel
40KH13 Stainless Steel is a high-carbon martensitic stainless steel known for its excellent hardness, wear resistance, and corrosion resistance. It is widely used in machine components, cutting tools, valves, shafts, and industrial equipment requiring high strength and durability.
Also known as AISI 420 stainless steel, SS 420 stainless steel, and EN 1.4031 stainless steel, this chromium stainless steel grade provides excellent performance after heat treatment and hardening. Russian Metals supplies premium 40KH13 steel products suitable for heavy-duty engineering and industrial applications.
- High-carbon martensitic stainless steel
- Excellent hardness and wear resistance
- Good corrosion resistance
- Superior heat treatment capability
- AISI 420 / EN 1.4031 equivalent
What is 40KH13 Stainless Steel?
40KH13 Steel (40Х13 Stainless Steel) is a Russian martensitic stainless steel grade containing high carbon and chromium content. It is designed for applications requiring superior hardness, wear resistance, and corrosion resistance after heat treatment.
This corrosion resistant martensitic steel is widely used in industrial machinery, cutting tools, medical instruments, and engineering components.
- High hardness after heat treatment
- Excellent wear resistance
- Good corrosion resistance
- Strong mechanical properties
- Reliable structural stability
- Excellent machining performance
Why 40KH13 Stainless Steel Performs in Tooling Applications
This high-strength stainless steel provides excellent hardness and toughness for industrial applications, offers improved corrosion resistance due to chromium content, is ideal for cutting tools and high-friction applications, provides superior hardness and durability as a high carbon chromium steel, performs efficiently after quenching and tempering, and is suitable for industrial environments exposed to moisture and chemicals.
- Annealing/Softening: ~740–800°C, controlled cool — best machinability
- Hardening (Quench): Austenitize ~980–1050°C; air/oil quench
- Tempering: Choose temperature for desired hardness/toughness balance; double tempering recommended
- Tensile strength: ~590–810 MPa (bars) • Elongation: ~10–14%
- Brinell hardness: ~143–229 HB (annealed) → up to ~460–550 HB after Q&T
40KH13 Stainless Steel Supply Range
Russian Metals supplies 40KH13 Martensitic Stainless Steel in multiple forms for industrial, engineering, automotive, and tool manufacturing applications.
Variants of 40KH13 Stainless Steel
Russian Metals supplies multiple variants and customized dimensions of 40KH13 stainless steel products
Advantages of 40KH13 Stainless Steel
Engineered for tooling and industrial applications where hardness, wear resistance, and corrosion resistance are critical.
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Excellent hardness providing high hardness after heat treatment
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Superior wear resistance ideal for cutting tools and mechanical components
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Good corrosion resistance suitable for industrial environments with moisture exposure
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Strong mechanical properties ensuring durability and reliability in engineering applications
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Long service life reducing maintenance cost and improving operational efficiency
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Excellent machining performance for precision manufacturing
Where 40KH13 Stainless Steel Is Used
From cutting tools to industrial machinery, 40KH13 stainless steel delivers reliable performance.
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Industrial machinery and cutting tools
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Valves, pumps, shafts, and gear components
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Automotive engineering and medical instruments
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Aerospace components and mechanical engineering systems
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Oil and gas equipment and industrial fasteners
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High-strength structural parts
Technical Specifications of 40KH13 Stainless Steel
Complete technical reference for engineers, buyers, and quality assurance teams.
Product Specifications of 40KH13 Stainless Steel
Product details, available forms, usage areas, and supply information.
| Specification | Details |
|---|---|
| Product Name | 40KH13 Stainless Steel (40Х13, AISI 420, SS 420) |
| Brand | Russian Metals |
| Material Type | Stainless Steel / Martensitic Stainless Steel |
| Grade | 40KH13, 40Х13, AISI 420, SS 420, UNS S42000, EN 1.4031 |
| Steel Classification | Martensitic stainless steel / High carbon chromium stainless steel |
| Available Forms | Round bar, rod, plate, sheet, pipe, tube, forged bar, billet, seamless pipe, flat bar |
| Common Usage | Industrial machinery, cutting tools, valves, pumps, shafts, automotive engineering |
| Surface Finish | Bright, polished, mill finish as required |
| Shape Options | Round, flat, forged, custom components |
| Size Options | Custom sizes available as per requirement |
| Heat Treatment Condition | Annealed / Hardened / Tempered / Quenched and tempered |
| Standard | GOST / ASTM 420 / International stainless steel standards |
| Supply Type | Supplier, manufacturer, exporter and stockist |
| Price | 40KH13 stainless steel price available on request |
| Customization | Available as per drawings, dimensions and application needs |
Chemical & Mechanical Properties of 40KH13 Stainless Steel (40Х13)
Certified composition and performance metrics for 40KH13 martensitic stainless steel according to GOST and international standards.
Characteristics of 40KH13 Stainless Steel
| Property | Value |
|---|---|
| Grade | 40KH13 (40Х13) - Martensitic Stainless Steel |
| Classification | High carbon chromium stainless steel / AISI 420 equivalent |
| Designation | Wear resistant stainless steel for industrial applications |
Typical Chemical Composition (Wt. %) — Buyer Guidance
Indicative; actual heat certificate prevails.
| C Min | C Max | Cr Min | Cr Max | Si Max | Mn Max | Ni Max | P Max | S Max | Fe |
|---|---|---|---|---|---|---|---|---|---|
| 0.36 | 0.45 | 12.0 | 14.0 | 0.80 | 0.80 | 0.60 | 0.030 | 0.025 | Balance |
Temperature of Critical Points for Grade 40KH13 (40Х13)
| Ac1 (°C) | Ar1 (°C) |
|---|---|
| 800 | 780 |
Mechanical Properties at 20°C for Grade 40KH13 (40Х13)
| Assortment | Dimension (mm) | Direct. | σB (MPa) | σT (MPa) | δ5 (%) | ψ (%) | KCU (kJ/m²) | Heat treatment |
|---|---|---|---|---|---|---|---|---|
| Sheet, GOST 5582-75 | - | - | 550 | - | 15 | - | - | Annealing 740 - 800°C |
| Bar, GOST 18907-73 | - | - | 590-810 | - | 10 | - | - | - |
| Wire, GOST 18143-72 | - | - | 640-880 | - | 10-14 | - | - | - |
Brinell Hardness for 40KH13 (40Х13)
| Condition / Standard | HB 10⁻¹ (MPa) |
|---|---|
| Quenching, tempering | 460 - 550 |
| Annealing, Bar GOST 5949-75 | 143 - 229 |
Physical Properties for Grade 40KH13 (40Х13)
| T (°C) | E × 10⁻⁵ (MPa) | α × 10⁶ (1/°C) | λ (W/m·°C) | ρ (kg/m³) | C (J/kg·°C) | R × 10⁹ (Ω·m) |
|---|---|---|---|---|---|---|
| 20 | 2.18 | - | 25 | 7650 | 461 | 590 |
| 100 | 2.14 | 10.8 | 26 | 7630 | 482 | 650 |
| 200 | 2.06 | 11.9 | 27.2 | 7600 | 523 | 710 |
| 300 | 1.98 | 12.3 | 28.3 | 7570 | 565 | 790 |
| 400 | 1.88 | 13 | 29.1 | 7540 | 607 | 860 |
| 500 | 1.76 | 13.6 | 29.1 | 7510 | 674 | 940 |
| 600 | 1.63 | 13.5 | 29.1 | 7480 | 775 | 1000 |
| 700 | 1.48 | 13.8 | 28.3 | 7450 | 988 | 1120 |
| 800 | 1.4 | 14.6 | 27.9 | 7420 | 825 | 1180 |
| 900 | - | - | 28.5 | - | 691 | 1160 |
Equivalent Steels for Grade 40KH13 (40Х13)
Indicated both exact and nearest equivalents
| Germany DIN, WNr | Japan JIS | China GB | Bulgaria BDS | Hungary MSZ | Romania STAS |
|---|---|---|---|---|---|
| Germany DIN, WNr | Japan JIS | China GB | Bulgaria BDS | Hungary MSZ | Romania STAS |
| 1.4031 1.4034 X38Cr13 X39Cr13 X40Cr13 X42Cr13 X46CM3 X46Cr13 | SUS420J2 | X40Cr14 Z33C13 Z38C13M Z40C13 Z40C14 Z44C14 Z50C14 | 420S45 X39Cr13 | 1.4031 1.4034 X39Cr13 X40Cr13 X41Cr13 | X40Cr14 X41Cr13KU X46Cr13 |
Control & Diagnostics of 40KH13 Stainless Steel
Every batch is tested to meet international and GOST industry standards.
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Chemical composition testing
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Mechanical property analysis
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Hardness testing
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Corrosion resistance testing
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Ultrasonic inspection
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Heat treatment verification
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Dimensional accuracy checks
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Material traceability certification
Each product is inspected to ensure compliance with industrial and GOST quality standards.
Trusted Partner for 40KH13 Stainless Steel
Premium quality martensitic stainless steel materials with global supply capability from India.
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Trusted stainless steel supplier for industrial and engineering sectors
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Wide product range in bars, rods, plates, sheets, pipes, tubes, billets, and forged products
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Certified quality standards manufactured as per GOST and international specifications
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Competitive pricing for cost-effective industrial stainless steel solutions
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Custom manufacturing support for custom sizes and precision components
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Reliable global supply with fast and consistent delivery
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Strong technical engineering expertise
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Fast global delivery from India
Order 40KH13 Stainless Steel from Russian Metals
Russian Metals is your trusted supplier of 40KH13 Stainless Steel, 40Х13 Stainless Steel, and SS 420 stainless steel products. We deliver high-performance martensitic stainless steel with excellent hardness, wear resistance, and corrosion resistance for industrial and engineering applications.
* 40KH13 (40Х13, AISI 420, UNS S42000, EN 1.4031) - High-carbon martensitic stainless steel: chemical composition, mechanical properties, physical properties, critical points, and equivalent grades for cutting tools, valves, shafts, industrial machinery, and engineering applications.
Contact Russian Metals today to order premium 40KH13 round bars, plates, sheets, rods, pipes, tubes, seamless pipes, billets, and industrial stainless steel products for your project requirements.