ST65G High Carbon Spring Steel Supplier, Manufacturer & Exporter in India
Russian Metals is a leading supplier, manufacturer, and exporter of ST65G Steel (Ст65Г Steel), a high carbon spring steel grade widely used in industrial, automotive, and mechanical applications. This heat treated steel is known for its excellent elasticity, hardness, and wear resistance.
Product Overview of ST65G Steel
ST65G Steel (Ст65Г Steel) is a high carbon spring steel used in applications requiring high strength, elasticity, and wear resistance. It is widely used in springs, mechanical components, and high-stress engineering parts.
This heat treated steel ST65G provides excellent fatigue strength, hardness, and durability, making it suitable for demanding industrial environments. Russian Metals supplies premium quality ST65G spring steel for engineering and manufacturing sectors.
- High carbon spring steel
- Excellent elasticity and spring properties
- High wear resistance and fatigue strength
- Heat treatable for improved hardness
- DIN 65Mn / AISI 1065 comparable
What is ST65G Steel?
ST65G Steel (Ст65Г Steel) is a high carbon spring steel grade used for manufacturing springs and high-strength mechanical components. It offers excellent elasticity and hardness after heat treatment.
This structural spring steel is widely used in automotive parts, industrial machinery, and heavy-duty applications.
- High carbon content
- Excellent spring properties
- High wear resistance
- Strong fatigue resistance
- Heat treatable performance
- Wide industrial applications
Why ST65G Steel Performs in Spring Applications
This high carbon spring steel is designed for high elasticity and strength, offers improved hardness and durability after heat treatment as a heat treated steel, is suitable for high friction and stress applications as a wear resistant steel, provides excellent load-bearing performance as a high strength carbon steel, and is used in mechanical and automotive springs as an industrial spring steel grade.
ST65G Steel Supply Range
Russian Metals supplies ST65G High Carbon Spring Steel in multiple forms for industrial, automotive, and mechanical applications.
Variants of ST65G Steel
Russian Metals supplies multiple variants and customized dimensions of ST65G spring steel products
Advantages of ST65G Steel
Engineered for spring and high-stress applications where elasticity, wear resistance, and fatigue strength are critical.
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Excellent spring performance ideal for high elasticity applications
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High strength material suitable for heavy load conditions
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Wear resistant steel providing long service life under friction
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Heat treatable steel where performance can be enhanced through treatment
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Industrial reliability widely used in mechanical engineering
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Strong fatigue resistance for demanding applications
Where ST65G Steel Is Used
From industrial springs to railway components, ST65G steel delivers reliable spring performance.
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Industrial springs and automotive suspension parts
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Mechanical components and heavy machinery parts
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Engineering structures and agricultural machinery
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Railway components and high-stress industrial tools
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Wear resistant parts and manufacturing industries
Technical Specifications of ST65G Steel
Complete technical reference for engineers, buyers, and quality assurance teams.
Product Specifications of ST65G Steel
Product details, available forms, usage areas, and supply information.
| Specification | Details |
|---|---|
| Product Name | ST65G Steel (Ст65Г Steel, High carbon spring steel ST65G) |
| Brand | Russian Metals |
| Material Type | Carbon Steel / High Carbon Spring Steel |
| Grade | ST65G, Ст65Г, DIN 65Mn (approx), AISI 1065 (approx) |
| Steel Classification | High carbon spring steel / Heat treatable steel / Wear resistant steel |
| Available Forms | Round bar, rod, plate, sheet, wire, spring strip, flat bar, forged bar, billet, coil |
| Common Usage | Industrial springs, automotive suspension parts, mechanical components, heavy machinery, railway components |
| Surface Finish | Bright, mill finish, as required |
| Shape Options | Round, flat, strip, wire, coil, forged components |
| Size Options | Custom sizes available as per requirement |
| Heat Treatment Condition | Quenched and tempered / Oil hardened / Normalized |
| Standard | GOST / Russian spring steel standards |
| Supply Type | Supplier, manufacturer, exporter and stockist |
| Price | ST65G steel price available on request |
| Customization | Available as per drawings, dimensions and application needs |
Chemical & Mechanical Properties of ST65G Steel (Ст65Г)
Certified composition and performance metrics for ST65G high carbon spring steel according to GOST and international standards.
Characteristics of ST65G Steel
| Property | Value |
|---|---|
| Grade | ST65G (Ст65Г) - High Carbon Spring Steel |
| Classification | Wear resistant steel / Heat treatable steel ST65G |
| Designation | Industrial spring steel for mechanical applications |
Chemical Composition in % for Grade 65G (65Г)
| C | Si | Mn | Ni | S | P | Cr | Cu |
|---|---|---|---|---|---|---|---|
| 0.62 - 0.7 | 0.17 - 0.37 | 0.9 - 1.2 | max 0.25 | max 0.035 | max 0.035 | max 0.25 | max 0.2 |
Chemical Composition (Typical Range)
| C | Si | Mn | P | S | Cr | Cu |
|---|---|---|---|---|---|---|
| 0.62 – 0.70% | 0.17 – 0.37% | 0.90 – 1.20% | ≤ 0.035% | ≤ 0.035% | ≤ 0.25% | ≤ 0.20% |
Temperature of Critical Points for Grade 65G (65Г)
| Ac1 (°C) | Ac3 / Acm (°C) | Ar3 / Arcm (°C) | Ar1 (°C) | Mn = 270 |
|---|---|---|---|---|
| 721 | 745 | 720 | 670 | 270 |
Mechanical Properties at 20°C for Grade 65G (65Г)
| Assortment | Dimension (mm) | Direct. | σB (MPa) | σT (MPa) | δ5 (%) | ψ (%) | KCU (kJ/m²) | Heat treatment |
|---|---|---|---|---|---|---|---|---|
| Rolled stock, GOST 14959-79 | - | - | 980 | 785 | 8 | 30 | - | Quenching and drawing |
| Sheet trick, GOST 1577-93 | - | - | 740 | - | 12 | - | - | - |
| Band cold-worked, GOST 2283-79 | - | - | 740-1180 | - | - | - | - | - |
| Band annealed, GOST 2283-79 | - | - | 640-740 | - | 10-15 | - | - | - |
Brinell Hardness for 65G (65Г)
| Condition / Standard | HB 10⁻¹ (MPa) |
|---|---|
| Without heat treatment, GOST 14959 | 285 |
| Heat treatment, Rolled stock GOST 14959-79 | 241 |
| Annealing, Sheet trick GOST 1577-93 | 229 |
Technological Properties for Grade 65G (65Г)
| Property | Value |
|---|---|
| Weldability | is not used |
| Flakes | weakly predisposed |
| Temper brittleness | predisposed |
Physical Properties for Grade 65G (65Г)
| 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 | 2.15 | - | 37 | 7850 | - | - |
| 100 | 2.13 | 11.8 | 36 | 7830 | 490 | - |
| 200 | 2.07 | 12.6 | 35 | 7800 | 510 | - |
| 300 | 2 | 13.2 | 34 | - | 525 | - |
| 400 | 1.8 | 13.6 | 32 | 7730 | 560 | - |
| 500 | 1.7 | 14.1 | 31 | - | 575 | - |
| 600 | 1.54 | 14.6 | 30 | - | 590 | - |
| 700 | 1.36 | 14.5 | 29 | - | 625 | - |
| 800 | 1.28 | 11.8 | 28 | - | 705 | - |
Types of Delivery for Grade 65G (65Г)
| Code | Description |
|---|---|
| B05 | Welding and cutting of metals., Soldering, riveting |
| В22 | Graded and shaped rolling |
| B23 | Sheets and Strips |
| B32 | Graded and shaped rolling |
| B33 | Sheets and Strips |
| B34 | Ribbons |
| В71 | Low-carbon steel wire |
| В72 | Medium-high and high-carbon steel wire |
Control & Diagnostics of ST65G 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 verification
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Hardness testing
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Heat treatment validation
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Fatigue resistance testing
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Dimensional inspection
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Surface quality analysis
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Full GOST compliance certification
Each product is inspected to ensure compliance with industrial and GOST quality standards.
Trusted Partner for ST65G Steel
Premium quality spring steel materials with global supply capability from India.
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Trusted spring steel supplier specialized in Russian high carbon spring steels
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Wide product range in bars, wires, sheets, strips, and forged components
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GOST certified quality manufactured as per Russian and international standards
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Competitive pricing for cost-effective solutions for industrial applications
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Custom manufacturing support for custom sizes and spring components
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Reliable supply chain with fast delivery for global engineering industries
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Strong technical engineering expertise
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Fast global delivery from India
Order ST65G Steel from Russian Metals
Russian Metals is your trusted supplier of ST65G Steel (Ст65Г Steel), high carbon spring steel, and wear resistant steel products. We deliver premium quality materials suitable for springs, mechanical parts, and industrial applications.
* ST65G (Ст65Г) - High carbon spring steel: chemical composition, mechanical properties, physical properties, critical points, and equivalent grades (DIN 65Mn, AISI 1065) for industrial springs, automotive suspension parts, mechanical components, heavy machinery, and railway applications.
Contact Russian Metals today to order premium ST65G round bars, plates, sheets, wires, spring strips, flat bars, forged bars, billets, and spring steel products for your engineering requirements.