ST45 Medium Carbon Steel Supplier, Manufacturer & Exporter in India
Russian Metals is a leading supplier, manufacturer, and exporter of ST45 Steel (Ст45 Steel), a widely used medium carbon steel grade. This heat treatable carbon steel is extensively used in mechanical engineering, structural fabrication, and industrial manufacturing.
Product Overview of ST45 Steel
ST45 Steel (Ст45 Steel) is a medium carbon structural steel widely used in engineering and mechanical applications. It is equivalent to AISI 1045 and C45 steel in international standards.
This heat treatable carbon steel provides high strength, good wear resistance, and excellent machinability, making it suitable for shafts, gears, and machine components. Russian Metals supplies high-quality ST45 structural steel for industrial and engineering applications worldwide.
- Medium carbon structural steel
- Heat treatable for improved strength
- Good wear resistance and machinability
- High strength material
- AISI 1045 / C45 equivalent
What is ST45 Steel?
ST45 Steel (Ст45 Steel) is a Russian medium carbon steel grade used in structural and mechanical engineering applications. It contains higher carbon content than low carbon steels, giving it improved strength and hardness after heat treatment.
This structural carbon steel ST45 is widely used in machine parts, automotive components, and heavy engineering structures.
- Medium carbon content
- High strength after heat treatment
- Good machinability
- Wear resistance
- Excellent structural performance
- Wide industrial applications
Why ST45 Steel Performs in Engineering Applications
This medium carbon steel grade provides higher strength than low carbon steels, can be hardened and tempered for improved performance as a heat treatable steel, is ideal for mechanical and structural applications as a structural carbon steel, is suitable for precision engineering components due to good machinability, and is used in load-bearing and industrial components as a high strength material.
ST45 Steel Supply Range
Russian Metals supplies ST45 Medium Carbon Steel in multiple forms for mechanical engineering, structural fabrication, and industrial applications.
Variants of ST45 Steel
Russian Metals supplies multiple variants and customized dimensions of ST45 steel products
Advantages of ST45 Steel
Engineered for mechanical engineering where high strength, heat treatability, and machinability are critical.
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High strength steel suitable for load-bearing mechanical parts
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Heat treatable material where strength can be improved through heat treatment
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Good wear resistance ideal for moving machine components
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Wide industrial usage in automotive and engineering sectors
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Cost efficient engineering steel providing strong performance at economical cost
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Excellent machinability for precision engineering components
Where ST45 Steel Is Used
From machine shafts to automotive components, ST45 steel delivers reliable engineering performance.
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Machine shafts and gears
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Automotive components and industrial machinery
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Engineering structures and heavy equipment parts
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Structural fabrication and forged components
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Construction machinery and mechanical engineering parts
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General industrial applications
Technical Specifications of ST45 Steel
Complete technical reference for engineers, buyers, and quality assurance teams.
Product Specifications of ST45 Steel
Product details, available forms, usage areas, and supply information.
| Specification | Details |
|---|---|
| Product Name | ST45 Steel (Ст45 Steel, Medium carbon steel ST45) |
| Brand | Russian Metals |
| Material Type | Carbon Steel / Medium Carbon Steel |
| Grade | ST45, Ст45, AISI 1045, C45, DIN C45, EN C45 |
| Steel Classification | Medium carbon steel / Structural carbon steel / Heat treatable carbon steel |
| Available Forms | Round bar, rod, plate, sheet, pipe, tube, flat bar, forged bar, billet, steel shaft |
| Common Usage | Machine shafts, gears, automotive components, industrial machinery, structural fabrication |
| Surface Finish | Bright, mill finish as required |
| Shape Options | Round, flat, plate, sheet, forged, shaft components |
| Size Options | Custom sizes available as per requirement |
| Heat Treatment Condition | Quenched and tempered / Normalized / Annealed |
| Standard | GOST / Russian medium carbon steel standards |
| Supply Type | Supplier, manufacturer, exporter and stockist |
| Price | ST45 steel price available on request |
| Customization | Available as per drawings, dimensions and application needs |
Chemical & Mechanical Properties of ST45 Steel
Certified composition and performance metrics for ST45 medium carbon structural steel according to GOST and international standards.
Characteristics of ST45 Steel
| Property | Value |
|---|---|
| Grade | ST45 (Ст45) - Medium Carbon Structural Steel |
| Classification | Heat treatable carbon steel / Engineering steel grade ST45 |
| Designation | Mechanical and industrial engineering steel |
ST45 Chemical Composition
| C (Max) | Si (Max) | Mn (Min) | P (Max) | S (Max) | Fe |
|---|---|---|---|---|---|
| ≤0.21 | ≤0.35 | ≥0.40 | ≤0.025 | ≤0.025 | Balance |
ST45 Mechanical Properties
Density: ~7.85 g/cm³ | Hardness: ~120–180 HB | Weldability: Good — recommended to use appropriate filler and preheating for high-temp welds.
| Delivery Condition | Tensile Strength (Rm) (MPa) | Yield Strength (ReH) (MPa) | Elongation (A%) |
|---|---|---|---|
| BK (Cold Finished/Hard) | 580 | — | 5% |
| BKW (Cold Finished/Soft) | 520 | — | 8% |
| BKS (Stress Relieved) | 520 | 375 | 12% |
| GBK (Annealed) | 390 | 255 | 21% |
| NBK (Normalized) | 440–570 | 255 | 21% |
Control & Diagnostics of ST45 Steel
Every batch is tested to meet international and GOST industry standards.
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Chemical composition analysis
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Mechanical property testing
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Heat treatment verification
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Hardness testing
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Ultrasonic inspection (if required)
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Dimensional accuracy checks
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Surface quality inspection
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Full GOST compliance certification
Each product is inspected to ensure compliance with industrial and GOST quality standards.
Trusted Partner for ST45 Steel
Premium quality medium carbon steel materials with global supply capability from India.
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Trusted medium carbon steel supplier specialized in ST45 and other engineering steel grades
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Wide product range in bars, plates, sheets, pipes, tubes, and forged products
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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 engineering industries
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Custom manufacturing support for custom sizes and shaft components
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Reliable supply chain with fast and consistent delivery for industrial requirements
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Strong technical engineering expertise
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Fast global delivery from India
Order ST45 Steel from Russian Metals
Russian Metals is your trusted supplier of ST45 Steel (Ст45 Steel), medium carbon structural steel, and heat treatable engineering steel. We provide high-quality materials suitable for mechanical, automotive, and industrial applications.
* ST45 (Ст45) - Medium carbon structural steel: chemical composition, mechanical properties, equivalent grades (AISI 1045, C45, DIN C45, EN C45), and applications for machine shafts, gears, automotive components, industrial machinery, and structural fabrication.
Contact Russian Metals today to order premium ST45 round bars, plates, sheets, pipes, tubes, flat bars, forged bars, billets, and medium carbon steel products for your engineering requirements.