Manufacturer, Supplier & Exporter of 20MnCr5 Round Bar
20MnCr5 Round Bar is a high-quality case-hardening alloy steel widely used for engineering components that require a hard, wear-resistant surface and a tough core. Riddhi Siddhi Impex, a reputed steel manufacturer and supplier in India, offers premium-grade 20MnCr5 round bars suitable for demanding industrial and automotive applications. Known for its excellent mechanical properties, machinability, and consistent chemical composition, 20MnCr5 is preferred for gears, pinions, shafts, and other high-load components..
As a leading 20MnCr5 Round Bar domestic supplier, Riddhi Siddhi Impex ensures that all products meet international quality standards and customer-specific requirements. The bars are manufactured using precise metallurgical processes and are subjected to stringent quality control checks, including dimensional accuracy, hardness testing, and chemical composition verification. This guarantees uniformity, reliability, and superior performance for critical applications..
One of the key advantages of 20MnCr5 Round Bar is its case-hardening capability. Through carburizing followed by quenching and tempering, the material develops a hard surface to resist wear while maintaining a ductile and tough core. This property makes it ideal for manufacturing high-strength components that operate under heavy stress, impact, or fatigue conditions. Riddhi Siddhi Impex supplies 20MnCr5 in annealed, normalized, or quenched & tempered conditions according to project requirements..
20MnCr5 is widely used in industries such as automotive, aerospace, industrial machinery, and manufacturing of heavy equipment. Its wear resistance and fatigue strength make it ideal for gears, cams, crankshafts, shafts, axles, and sprockets. Riddhi Siddhi Impex maintains a ready stock of standard diameters and lengths, ensuring uninterrupted supply to OEMs, fabricators, and machine shops across India..
In addition to supplying raw bars, Riddhi Siddhi Impex offers value-added services like precision cutting, turning, grinding, and surface finishing. These services reduce machining time, minimize material wastage, and improve the efficiency of component manufacturing. Clients can also request customized lengths, diameters, and tolerances to suit specific engineering applications..
20MnCr5 Round Bar — Specification & Datasheet (Riddhi Siddhi Impex)
Specification — 20MnCr5 Round Bar
| Property | Details / Typical |
|---|---|
| Product name | 20MnCr5 Round Bar (Case Hardening Alloy Steel) |
| Manufacturer / Supplier | Riddhi Siddhi Impex |
| Common designation | 20MnCr5 / EN 10084 |
| Equivalent grades | SCM420 (JIS), 20Cr5 (DIN) |
| Form | Hot Rolled, Forged, Bright Turned & Ground |
| Delivery conditions | Annealed, Normalized, or Quenched & Tempered |
| Size range | 10 mm – 300 mm diameter (custom sizes available) |
| Length | 3 m, 6 m, or cut-to-length |
| Typical applications | Gears, pinions, shafts, axles, rollers, camshafts, and other wear-resistant components |
| Traceability | Mill Test Certificate (MTC) available as per EN 10204 2.2 / 3.1 |
Chemical Composition (wt.%) — Typical
| Element | Typical content (%) |
|---|---|
| Carbon (C) | 0.17 – 0.22 |
| Manganese (Mn) | 1.00 – 1.30 |
| Silicon (Si) | ≤ 0.40 |
| Chromium (Cr) | 1.00 – 1.30 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.035 |
| Iron (Fe) | Balance |
Mechanical Properties — Typical
| Condition | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness |
|---|---|---|---|---|
| Annealed | 500 – 600 | ≈ 350 – 400 | 14 – 18 | ≈ 180 – 220 HB |
| Normalized | 600 – 750 | ≈ 400 – 500 | 12 – 16 | ≈ 200 – 250 HB |
| Case Hardened | Surface: 58 – 62 HRC, Core: 250 – 300 HB | Core: 500 – 600 | 8 – 12 | High surface hardness with tough core |
Dimension Chart — Common Sizes & Approx. Weights
| Diameter (mm) | Area (mm²) | Approx. Weight (kg/m) |
|---|---|---|
| 10 | 78.54 | 0.62 |
| 12 | 113.10 | 0.89 |
| 16 | 201.06 | 1.58 |
| 20 | 314.16 | 2.47 |
| 25 | 490.87 | 3.86 |
| 32 | 804.25 | 6.31 |
| 40 | 1256.64 | 9.86 |
| 50 | 1963.50 | 15.39 |
| 80 | 5026.55 | 39.44 |
| 100 | 7853.98 | 61.58 |
Equivalent Grades
| Standard / Region | Equivalent Grade |
|---|---|
| DIN / EN | 20MnCr5 / 1.7147 |
| JIS | SCM420 |
| AISI / SAE | Approx. SAE 5120 / 5122 |
Equivalent Standards
| Standard | Description |
|---|---|
| EN 10084 | Case-hardening steel for gears, shafts, pinions, and wear-resistant components |
| DIN 17211 | German standard for low-carbon case-hardening alloy steel |
Other Types / Finishes
| Type | Description |
|---|---|
| Hot Rolled / Black | Economical form for general engineering components |
| Bright Turned & Ground | Precision diameter and smooth surface for high accuracy applications |
| Forged Bars | Improved strength and grain flow for critical machinery components |
| Surface Treatments | Nitriding, induction hardening, shot peening, grinding |
| Custom Sizes | Cut-to-length, diameter-specific, and tolerance-controlled options |
The company has a nationwide distribution network, supplying 20MnCr5 Round Bars to major Indian cities, including Mumbai, Delhi, Bengaluru (Bangalore), Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, Nagpur, Indore, Bhopal, Jaipur, Kanpur, Lucknow, Agra, Varanasi, Amritsar, Chandigarh, Mysuru (Mysore), Udaipur, Jodhpur, Visakhapatnam, Coimbatore, Madurai, Kochi, Thiruvananthapuram, Mangalore, Nashik, Kolhapur, Chandrapur, Akola, Vilayat, Somnath, Dahej, Narmada, Ankleshwar, Navsari, Valsad, Rajpipla. This ensures prompt delivery and availability even for urgent bulk orders..
Frequently Asked Questions (FAQs)
- Q1: What are the common applications of 20MnCr5 Round Bar?
- A1: It is widely used for manufacturing gears, shafts, pinions, axles, rollers, camshafts, and other case-hardened components.
- Q2: Can Riddhi Siddhi Impex supply 20MnCr5 in custom sizes and heat-treated conditions?
- A2: Yes, custom diameters, lengths, and heat treatments including annealed, normalized, and quenched & tempered are available on request.
- Q3: What certifications are provided with 20MnCr5 Round Bar?
- A3: All bars are supplied with Mill Test Certificates (MTC) as per EN 10204 2.2 / 3.1. Optional third-party inspection reports can also be arranged.
- Q4: Is 20MnCr5 suitable for high-wear applications?
- A4: Yes, it offers a hard surface and tough core after case hardening, making it ideal for high-stress and high-wear applications.
Cities we have supplied our products to
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