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Chrome Moly DIN 1.6522 Alloy Steel Bars
110.0 INR/Kilograms
Product Details:
- Processing Annealed, Normalized, Quenched & Tempered
- Specific Use Machinery Parts, Automotive Shafts, Engineering Structures
- Grade 1.6522 (16NiCrMo12)
- Standard DIN 1.6522
- Diameter 6mm to 300mm
- Type Alloy Steel Bars
- Length Custom Lengths as Required
- Click to view more
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Chrome Moly DIN 1.6522 Alloy Steel Bars Price And Quantity
- 1 Kilograms
- 110.0 INR/Kilograms
Chrome Moly DIN 1.6522 Alloy Steel Bars Product Specifications
- Custom Lengths as Required
- Alloy Steel Bars
- 1.6522 (16NiCrMo12)
- Machinery Parts, Automotive Shafts, Engineering Structures
- 6mm to 300mm
- Annealed, Normalized, Quenched & Tempered
- Bright / Black / Peeled / Ground
- Chrome Moly DIN 1.6522 Alloy Steel
- DIN 1.6522
- H9, H10, or as Specified
- Hot Rolled / Cold Drawn
- Engineering, Automotive Components, Shafts, Gears, Forgings
- EN 10204 3.1 / 3.2
- 160-240 HBW (as per Delivery Condition)
- As Rolled, Heat Treated
- 35J (Min.) at -20C
- Min. 900 MPa (depends on condition)
- Bars, Rods, Forged Bars, Cut-to-Length Bars
- Bundles with Plastic Wrapping or as per requirement
- C: 0.14-0.20%, Si: 0.10-0.40%, Mn: 0.40-0.70%, Cr: 0.40-0.70%, Mo: 0.15-0.25%, Ni: 3.00-3.50%
- Min. 700 MPa (depends on condition)
- Round, Square, Flat, Hexagonal
- Polished, Pickled, Sand Blasted
Product Description
DIN 1.6522 (chemical designation 20MnNiCrMo3-2 or 20NiCrMo2) is a specialized, low-carbon alloy steel. While it contains chromium and molybdenum, it is technically an advanced Nickel-Chromium-Molybdenum (Ni-Cr-Mo) triple-alloy steel closely related to the popular 1.6523 (AISI 8620) grade.
Unlike high-tensile through-hardening bars, 1.6522 is primarily engineered as a case-hardening (carburizing) steel or a high-toughness steel for extreme-duty fatigue applications, such as welded round link chains and high-wear machinery components.
Global Equivalents
Because 1.6522 sits right next to the classic "8620 family" on the metallurgy spectrum, it cross-references closely with:
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USA (AISI/SAE): AISI 8620 / 8620H (Very close variant)
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Germany (DIN / WNr): 20MnNiCrMo3-2 / 20NiCrMo2 / 1.6522
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Europe (EN): 20NiCrMo2-2 (1.6523) or 20NiCrMo2F
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France (AFNOR): 20NCD2
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Japan (JIS): SNCM220
Chemical Composition (Typical %)
The lower carbon content (around 0.20%) is intentional; it keeps the core of the bar highly ductile and weldable, while the Cr, Ni, and Mo elements maximize hardenability during case carburizing.
| Carbon (C) | Manganese (Mn) | Nickel (Ni) | Chromium (Cr) | Molybdenum (Mo) | Silicon (Si) |
| 0.17% 0.23% | 0.60% 1.00% | 0.40% 0.70% | 0.35% 0.70% | 0.15% 0.25% | 0.40% |
Core Mechanical Properties (Typical Heat-Treated State)
When case-hardened (carburized, quenched, and tempered), a 1.6522 alloy bar achieves a dual-nature profile: a hard, wear-resistant outer skin with an incredibly shock-absorbing core.
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Core Tensile Strength: 660 1160 MPa (highly dependent on section size and heat treatment)
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Core Yield Point: 470 560 MPa
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Elongation ($A_5$): 9% 12%
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Surface Hardness (Post-Carburization & Temper): Typically 58 62 HRC
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Maximum Supplied Brinell Hardness (Soft Annealed): 210230 HBW (for optimal machining before hardening)
Distinct Engineering Characteristics
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Superior Weldability: Thanks to its low carbon threshold and optimized chemistry, it can be welded reliably (e.g., forming high-strength heavy chain links) without the intense cracking risks associated with higher-carbon equivalents like 4140 or 4340.
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Controlled Grain Growth: It responds beautifully to fine-grain processing treatments, ensuring that components don't become brittle under heavy, repetitive shock loads.
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Case Depth Uniformity: The trace molybdenum and nickel combination ensures a reliable, predictable depth of hardness (case depth) when gas- or vacuum-carburized.
Typical Applications
DIN 1.6522 round and flat bars are highly sought after for components subjected to intense surface friction, high pressures, and dynamic shock:
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Mining & Lifting: Heavy-duty welded round link hoisting and conveyor chains.
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Automotive & Heavy Equipment: High-speed drive pinions, planetary gear wheels, spline shafts, and universal joints.
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Machinery Spares: High-wear pins, bushings, cam rollers, and heavy-duty clamping hardware that requires a glass-hard surface but a shatter-proof center.
Versatile Alloy Steel for Advanced Engineering
Chrome Moly DIN 1.6522 Alloy Steel Bars are ideal for critical components such as automotive shafts, machinery parts, gears, and forgings. Their robust mechanical properties and customizable delivery condition make them suitable for both heavy-duty and precision engineering applications. These bars are engineered for durability and consistent performance in demanding environments.
Precision Manufacturing and Multiple Forms
Our alloy steel bars are produced in various forms-bars, rods, forged bars, and cut-to-length bars-catering to a spectrum of industry needs. With hot rolled or cold drawn techniques and multiple surface finish options, we maintain tight dimensional tolerances (H9, H10, or as specified), ensuring optimal fit and function in your projects.
Quality Assurance and Certifications
All deliveries are thoroughly tested and certified according to EN 10204 3.1 or 3.2 standards. Full chemical composition and mechanical properties are documented, providing confidence in material quality and traceability. Careful bundling and packaging secure your shipment, with the option to customize packing as required.
FAQ's of Chrome Moly DIN 1.6522 Alloy Steel Bars:
Q: How are Chrome Moly DIN 1.6522 Alloy Steel Bars processed to ensure high strength and durability?
A: These bars undergo various processing methods such as annealing, normalizing, and quenching & tempering. The selected process depends on the required delivery condition, ensuring the bars achieve a minimum yield strength of 700 MPa and tensile strength of 900 MPa, with enhanced impact resistance at -20C.Q: What applications benefit most from using DIN 1.6522 Alloy Steel Bars?
A: DIN 1.6522 Alloy Steel Bars are extensively used in the engineering and automotive sectors. They are ideal for manufacturing shafts, gears, forgings, and other high-strength machinery components due to their superior mechanical properties and customizable forms.Q: When is it advisable to choose a specific surface condition or finish for these bars?
A: The choice of surface condition (polished, pickled, sand blasted, bright, black, peeled, or ground) depends on the final application. For example, polished or ground finishes are preferred for visible or precision-fit parts, while pickled or sand blasted surfaces are chosen for subsequent coating or fabrication processes.Q: Where are Chrome Moly DIN 1.6522 Alloy Steel Bars manufactured and supplied from?
A: These alloy steel bars are produced and supplied by reputable dealers, manufacturers, exporters, and suppliers throughout India, ensuring efficient delivery and technical support for both domestic and international clients.Q: What test certifications are provided with each batch of alloy steel bars?
A: Each batch is supplied with EN 10204 3.1 or 3.2 test certificates, which confirm the material's chemical composition and mechanical properties. This documentation ensures compliance with industry standards and provides full traceability for quality assurance.Q: How can the length, tolerance, and packing of these bars be customized?
A: Bars can be ordered in any custom length as required, with tight tolerances of H9, H10, or as specified by the customer. Packing is typically in bundles with plastic wrapping, but special packing options are available upon request to suit unique transport or storage needs.Q: What are the key benefits of choosing 1.6522 (16NiCrMo12) alloy steel bars for your project?
A: Key benefits include high strength, good toughness even at low temperatures, excellent machinability, and adaptability to various surface finishes and forms. They offer reliability and performance for automotive, engineering, and machinery applications that demand robust and precise materials.Tell us about your requirement
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