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BS 527M17 Alloy Steel Bar 527M17 Round Bars 527M17 Rods
295.0 INR/Kilograms
Product Details:
- Finish Bright, Peeled, Polished, Black, Turned
- Technique Hot Rolled / Cold Drawn
- Application Engineering, construction, automotive, machinery parts
- Standard BS 527M17
- Processing Rolled / Drawn / Peeled / Ground
- Length Cut to Size / Standard Lengths Available
- Tolerance H8, H9 or as required
- Click to view more
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BS 527M17 Alloy Steel Bar 527M17 Round Bars 527M17 Rods Price And Quantity
- 1 Kilograms
- 295.0 INR/Kilograms
BS 527M17 Alloy Steel Bar 527M17 Round Bars 527M17 Rods Product Specifications
- Alloy Steel (BS 527M17)
- 527M17
- Round Bar, Rod
- 5 mm to 250 mm or as specified
- Gears, shafts, axles, studs, and high-stress components
- Rolled / Drawn / Peeled / Ground
- Cut to Size / Standard Lengths Available
- H8, H9 or as required
- BS 527M17
- Engineering, construction, automotive, machinery parts
- Hot Rolled / Cold Drawn
- Bright, Peeled, Polished, Black, Turned
- Moderate (may require further treatment for extreme conditions)
- Straightened, free from surface defects
- Readily available in various sizes
- Bundled with protective cover, seaworthy packing
- Round, Hexagonal, Square (on request)
- Cold finished / Hot rolled / Turned & polished
- 160-220 HB (typical, as supplied)
- Annealed, Hardened & Tempered, Normalized (as per requirement)
- As per customer requirement
- Yes, on request
- Good (sulphur content improves machinability)
- Fair to Good, with proper procedure
Product Description
BS 527M17 (historically referenced under BS 970) is a low-alloy, manganese-chromium case-hardening (carburizing) steel. It is formulated to achieve a high surface hardness after carburizing, while maintaining a durable, impact-resistant core.
Round bars and rods made of 527M17 are heavily relied on in general engineering, precision machining, and heavy manufacturing for parts subjected to high friction, shock, and localized stress.
Technical Specifications & Cross-References
In global material sourcing, BS 527M17 overlaps deeply with the standard manganese-chromium chemistry family. The most common equivalent international designations include:
| Standard | Designation / Grade |
| British Standard (BS 970) | 527M17 / 590M17 |
| European (EN / DIN / WNr) | 16MnCr5 / 1.7131 |
| AISI / SAE (USA) | 5115 |
| AFNOR (France) | 16MC5 |
| JIS (Japan) | SCr415 |
Chemical Composition
The material utilizes a lean addition of chromium and a robust concentration of manganese to achieve predictable depth of hardening (hardenability) during heat treatment.
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Carbon (C): 0.14% 0.19% (low base carbon ensures core remains tough and non-brittle after quenching)
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Manganese (Mn): 1.00% 1.30%
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Chromium (Cr): 0.80% 1.10%
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Silicon (Si): max. 0.40%
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Phosphorus (P): max. 0.025%
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Sulfur (S): max. 0.035%
Key Mechanical Properties & Supply Conditions
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Supply State: Typically stocked and delivered in the As-Rolled, Normalized, or Soft Annealed condition (usually max. 207 HBW) to minimize tool wear during initial machining, turning, or gear cutting.
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Core Strength Post-Heat Treatment: Once carburized, quenched, and tempered, it develops a high core tensile strength (typically 7001000 MPa depending on the ruling section size) and excellent fatigue strength.
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Ruling Section Limitations: It has low-to-medium core hardenability, making it ideal for small-to-medium component cross-sections (typically up to 40 mm50 mm thickness) where consistent core properties are required.
Core Applications
Because 527M17 provides a highly wear-resistant "case" with a fracture-resistant core, its round bars and rods are heavily favored for:
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Power Transmission: Medium-stressed gears, pinions, splined shafts, and gearboxes.
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Fasteners & Hardware: High-strength structural pins, heavy-duty bolts, gudgeon pins, and specialized bushings.
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Mechanical Components: Camshafts, joints, and universal linkages exposed to abrasive sliding wear.
Versatile Shapes and Surface Finishes
BS 527M17 alloy steel bars can be ordered in round, hexagonal, or square cross-sections, allowing engineers to select the best fit for their design. Surface options such as cold finished, hot rolled, peeled, ground, and polished finishes, ensure optimal compatibility with your production requirements and standards.
Heat Treatment and Hardness Range
These bars come with heat treatment choices such as annealed, normalized, or hardened & tempered, repaying flexibility for different mechanical properties. Typical hardness lies between 160-220 HB, making them suitable for applications demanding both strength and toughness.
Excellent Machinability and Processing Options
The added sulphur content improves machinability, ensuring efficient turning, drilling, and threading. Multiple processing methods-rolling, drawing, peeling, grinding-enable close tolerance (H8, H9, or as required) and custom length or diameter as per project specifications.
FAQ's of BS 527M17 Alloy Steel Bar 527M17 Round Bars 527M17 Rods:
Q: How does the BS 527M17 Alloy Steel Bar benefit high-stress component applications?
A: The 527M17 Alloy Steel Bar offers a balanced combination of strength, toughness, and machinability, with a typical hardness of 160-220 HB and various heat treatment options, making it ideal for gears, shafts, axles, and other parts subjected to high mechanical stress.Q: What surface conditions and finishes are available for BS 527M17 bars and rods?
A: You can choose from cold finished, hot rolled, turned & polished, bright, peeled, or even black finishes, depending on your application's requirements. This variety helps meet both functional and aesthetic needs in engineered components.Q: What is the standard process for supplying and packaging BS 527M17 round bars?
A: Bars are delivered straightened, free from surface defects, and bundled with protective cover in seaworthy packaging to ensure safe transportation and compliance with export standards.Q: When should I consider further corrosion protection for BS 527M17 alloy steel?
A: Since the steel provides moderate corrosion resistance, additional surface treatments such as coatings may be required for extreme or highly corrosive environments to prolong the lifespan and maintain integrity.Q: Where can I get custom sizes or specialized processing for BS 527M17 bars?
A: Custom diameters (from 5 mm to 250 mm), lengths, shapes, and specific processing (ground, peeled, drawn, etc.) are available on request through dedicated suppliers, manufacturers, and dealers across India.Q: What is the machinability and weldability of BS 527M17 steel rods?
A: Thanks to the enhanced sulphur content, machinability is good, facilitating easy shaping and finishing. Weldability is rated fair to good, with proper procedures and precautions recommended for best results.Q: How is the hardness and tolerance of BS 527M17 alloy steel controlled during production?
A: Hardness is maintained within a typical range of 160-220 HB through appropriate heat treatment processes, while tolerances such as H8 or H9 are controlled according to customer or project specifications.Tell us about your requirement
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