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DIN EU EN UNI ISO 16MnCr5 Round Bars UNE 16MnCr5 Rods
220.0 INR/Kilograms
Product Details:
- Material 16MnCr5 Alloy Steel
- Application Automotive parts, Gear components, Engineering applications
- Tolerance H8, H9, H10 or as specified
- Type Round Bar / Rods
- Processing Peeled, Polished, Centerless Ground
- Grade 16MnCr5
- Length Custom lengths available (commonly up to 6 meters or 12 meters)
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DIN EU EN UNI ISO 16MnCr5 Round Bars UNE 16MnCr5 Rods Price And Quantity
- 1 Kilograms
- 220.0 INR/Kilograms
DIN EU EN UNI ISO 16MnCr5 Round Bars UNE 16MnCr5 Rods Product Specifications
- DIN, EU, EN, UNI, ISO, UNE
- For carburizing and engineering machining
- Bright / Matt / Black
- 16mm - 300mm or customized
- Hot Rolled / Cold Drawn
- Custom lengths available (commonly up to 6 meters or 12 meters)
- 16MnCr5
- Peeled, Polished, Centerless Ground
- Automotive parts, Gear components, Engineering applications
- 16MnCr5 Alloy Steel
- Round Bar / Rods
- H8, H9, H10 or as specified
- Excellent-ideal for precision machining
- High (suitable for heavy duty and shock loading)
- 800 - 1000 MPa (approx, after heat treatment)
- Moderate, can be improved with surface treatments
- Carburizing, Quenching & Tempering possible
- Smooth, defect free after finishing
- 600 MPa (approx, condition dependent)
- 180-250 HB (as delivered)
- Annealed / Pre-Machined / Heat-treated (as required)
- Available on request
Product Description
The 16MnCr5 grade (Werkstoff number 1.7131) is one of the most widely used European alloy case-hardening (carburizing) steels. It is fully standardized across all major European national and international bodies, including DIN, EN, UNI, ISO, and UNE.
It is specifically formulated for components requiring a hard, wear-resistant surface skin combined with a tough, ductile core to withstand high shock loads and dynamic torsional stress.
Standard Cross-References
Whether specified under old national standards or modern unified European norms, the material remains identical:
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European Union (EN): EN 10084 (16MnCr5 / 1.7131)
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Germany (DIN): DIN 16MnCr5
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Italy (UNI): UNI 16MnCr5
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Spain (UNE): UNE 16MnCr5
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International (ISO): ISO 683-11 (16MnCr5)
Chemical Composition (%)
The combination of manganese ($Mn$) and chromium ($Cr$) provides excellent hardenability and uniform case depth, while the low carbon content ensures the core remains highly ductile.
| Element | Minimum (%) | Maximum (%) |
| Carbon (C) | 0.14 | 0.19 |
| Chromium (Cr) | 0.80 | 1.10 |
| Manganese (Mn) | 1.00 | 1.30 |
| Silicon (Si) | 0.40 | |
| Phosphorus (P) | 0.025 | |
| Sulfur (S) | 0.035 * |
*Controlled sulfur variants (e.g., 16MnCrS5 / 1.7139) are available with $S = 0.020 - 0.040%$ to specifically enhance high-speed machinability.
International Equivalents
If you are cross-referencing outside of the European standard framework, 16MnCr5 corresponds closely to:
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USA (AISI/SAE): 5115 or 5117
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Japan (JIS): SMnC420
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Russia (GOST): 15KhG or 18KhG
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United Kingdom (BS): 527M17
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China (GB): 20CrMn
Mechanical Properties (Typical Post-Heat Treatment)
After carburizing, quenching, and low-temperature tempering, the core and surface exhibit distinct properties.
Core Properties (Tested on standard $varnothing 11text{mm}$ reference test pieces)
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Tensile Strength ($R_m$): $880 - 1180text{ MPa}$
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Yield Strength ($R_e$): $ge 635text{ MPa}$
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Elongation ($A_5$): $ge 9%$
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Impact Energy ($KV$): $ge 41text{ J}$
Surface Properties
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Case-Hardened Surface Hardness: $58 - 62text{ HRC}$ (providing extreme wear and abrasion resistance)
Key Technical Features
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Excellent Carburizing Response: It develops a highly uniform, deep carbon-rich layer when treated in gas, plasma, or vacuum carburizing furnaces.
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Dimensional Stability: It responds well to direct quenching or double hardening cycles with manageable distortion profiles, making it highly valued for precision components.
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Superb Machinability: In the annealed ($+A$) or treated to ferrite-pearlite structure ($+FP$) states, it offers excellent chip breakability and minimal tool wear during gear cutting and turning.
Typical Applications
16MnCr5 round bars and rods are essential components in power transmission systems, automotive engineering, and heavy clamping hardware:
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Gearboxes & Drivetrains: Spur gears, helical gears, pinion shafts, synchronizer hubs, and splined drive shafts.
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Engine & Steering Components: Camshafts, universal joint journals, steering worms, and piston gudgeon pins.
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Industrial Hardware: High-wear guide bushings, specialized clamping pins, and heavy-duty structural toggle linkages.
Available Supply Forms
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Surface Finishes: Black hot-rolled, bright cold-drawn (for tight tolerances), centerless turned, or ground finish.
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Delivery Conditions: * $+A$: Soft annealed (maximum soft state for easy cold forming/machining)
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$+TH$: Treated to hardness range
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$+FP$: Treated to ferrite-pearlite structure (optimized for uniform machinability)
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$+N$: Normalized
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Precision Engineering with 16MnCr5 Alloy Steel
16MnCr5 round bars and rods offer outstanding machinability and versatility, making them highly sought after in automotive and mechanical engineering. Their excellent strength and impact resistance, even under heavy duty and shock load conditions, ensure reliability in critical components, while customizable sizes cater to specific project requirements.
Superior Surface Quality and Customization Options
These round bars are supplied in various finishes such as bright, matt, or black, and undergo processes like peeling, polishing, or centerless grinding to achieve defect-free surfaces. Customers can specify diameters, lengths, and tolerances, ensuring each product is tailored precisely to application needs.
FAQ's of DIN EU EN UNI ISO 16MnCr5 Round Bars UNE 16MnCr5 Rods:
Q: How are DIN EU EN UNI ISO 16MnCr5 Round Bars and UNE 16MnCr5 Rods typically processed?
A: These bars and rods can be processed through hot rolling or cold drawing techniques. Post-production, they may undergo procedures such as peeling, polishing, and centerless grinding, which result in smooth, defect-free surfaces and improved dimensional precision.Q: What are the primary advantages of using 16MnCr5 round bars in automotive and engineering applications?
A: 16MnCr5 round bars deliver a combination of high impact strength, yield strength around 600 MPa, and excellent machinability, making them ideal for gears, shafts, and automotive parts that require both durability and precise machining.Q: When should heat treatment like carburizing, quenching, and tempering be applied to these rods?
A: Heat treatments such as carburizing, quenching, and tempering are recommended when higher surface hardness and core toughness are required, particularly in components exposed to wear, impact, or heavy loading conditions.Q: Where can DIN EU EN UNI ISO 16MnCr5 round bars and rods be sourced in India?
A: These steel products are widely available through various channels, including manufacturers, suppliers, exporters, dealers, retailers, and fabricators across India, ensuring accessibility for industrial and engineering needs.Q: What customization options are available for these alloy steel rods?
A: Customers can request custom diameters (from 16mm to 300mm), lengths (commonly up to 6 or 12 meters), as well as specific tolerances (H8, H9, H10), surface finishes, and delivery conditions like annealed, pre-machined, or heat-treated states.Q: How does the corrosion resistance of 16MnCr5 alloy steel rods compare to other materials?
A: Although 16MnCr5 provides moderate corrosion resistance, this property can be significantly improved through various surface treatments, making the alloy adaptable for more corrosive environments if needed.Q: What is the benefit of choosing pre-machined or pre-finished round bars for precision engineering?
A: Selecting pre-machined or pre-finished bars reduces additional processing time and effort. This ensures uniform dimensional accuracy, quicker production cycles, and allows immediate use for high-precision components, thereby increasing overall efficiency.Tell us about your requirement
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