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SS 2127 Alloy Steel Bar 2127 Round Bars 2127 Rods
188.0 INR/Kilograms
Product Details:
- Tolerance h8, h9, h10 or as required
- Grade 2127
- Finish Bright, Black, Polished
- Application Construction, Engineering, Automotive, Machinery
- Material SS 2127 Alloy Steel
- Length 2m to 6m or as required
- Type Round Bar, Rod
- Click to view more
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SS 2127 Alloy Steel Bar 2127 Round Bars 2127 Rods Price And Quantity
- 1 Kilograms
- 188.0 INR/Kilograms
SS 2127 Alloy Steel Bar 2127 Round Bars 2127 Rods Product Specifications
- h8, h9, h10 or as required
- Bright, Black, Polished
- 2127
- Construction, Engineering, Automotive, Machinery
- 2m to 6m or as required
- SS 2127 Alloy Steel
- Round Bar, Rod
- Shafts, Gears, Machine Parts
- Hot Rolled / Cold Drawn
- 6mm to 300mm
- ASTM, AISI, DIN, EN, GB, JIS
- Forged, Peeled, Turned
- Moderate
- Smooth, Free from Scale
- Min 590 MPa
- Min 415 MPa
- 150-220 HB
- Annealed / Normalized / Quenched & Tempered
- Good
- Min 15% in 50mm
- 7.85 g/cm3
Product Description
SS 2127 (often listed in historical inventories as SS 142127) is a vintage Swedish standard (Mekanfrbundet / SIS) low-alloy, low-carbon manganese-chromium engineering steel specifically optimized for case hardening (carburizing).
In the European standard framework, SS 2127 corresponds directly to 16MnCr5 (Werkstoffnummer 1.7131) or its sulfur-controlled resulfurized version 16MnCrS5 (1.7139). It is a highly dependable material for round bars, rods, and shafts that require an exceptionally hard, wear-resistant surface profile alongside a highly ductile, shock-absorbing core.
Technical Specifications & Chemical Composition
The balanced addition of Manganese (Mn) and Chromium (Cr) provides this grade with uniform core hardenability in small-to-medium cross-sections, while its low carbon base guarantees a reliable, predictable response during gas or vacuum carburization.
Chemical Composition (Weight % per SS 142127 / 16MnCr5)
| Element | Carbon (C) | Silicon (Si) | Manganese (Mn) | Phosphorus (P) | Sulfur (S)* | Chromium (Cr) |
| Min | 0.14% | 0.15% | 1.00% | 0.020% | 0.80% | |
| Max | 0.19% | 0.40% | 1.30% | 0.025% | 0.035% | 1.10% |
*Note: Variants supplied specifically under the 16MnCrS5 equivalent track sulfur levels strictly between 0.020% and 0.040% to intentionally elevate chips-breaking behavior during high-speed CNC machining lines.
Mechanical Properties (Typical Core Values Post-Heat Treatment)
Before surface enrichment, the core properties of SS 2127 bars prevent the cracking or cave-in of brittle surface cases when exposed to heavy localized pounding or point-loads.
Mechanical Benchmarks (Tested on $le$ 16 mm Treated Sections)
| Property | Value |
| Tensile Strength ($R_m$) | 800 1100 MPa |
| Yield Strength ($R_{p0.2}$) | $ge$ 440 MPa |
| Elongation ($A_5$) | $ge$ 10% |
| Impact Energy (ISO-V) | $ge$ 41 J |
| Annealed Delivery Hardness | $le$ 207 HBW (Soft-annealed for machining ease) |
| Final Case Surface Hardness | 58 62 HRC |
Global Cross-Reference Equivalents
Because the older Swedish standard "SS" identifiers have largely been harmonized under global sourcing networks, you can reliably cross-specify SS 2127 against these modern equivalent materials:
-
Europe (EN / DIN): 16MnCr5 (1.7131) or 16MnCrS5 (1.7139)
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USA (AISI/SAE): AISI 5115 / SAE 5117
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China (GB/T): 15CrMn / 20CrMnTi
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United Kingdom (BS): 527M20 / 590M17
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Japan (JIS): SMnC420 / SNC415
Thermal Processing & Carburizing Parameters
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Forging / Hot Rolling: 1150 850C
-
Normalizing: 870 900C (Air cooled)
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Soft Annealing (+A): 650 - 700C (Slow furnace cool to maximize tool life)
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Carburizing Cycle: 880-980C (Atmosphere enriched with carbon gas)
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Core Refining Hardening: 860C -900C (Oil or polymer quench)
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Case Refining Hardening: 780C -820C (Oil quench to capture surface martensite)
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Low-Stress Tempering: 150-200C (Minimum 1 hour to stabilize the matrix without shedding HRC)
Primary Structural Applications of SS 2127 Bars
SS 2127 round bars excel in mass-production environments where components face constant surface sliding wear, structural fatigue, or high tooth-contact pressures:
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Power Transmission Components: Small-to-medium spur gears, helical gears, spline shafts, and pinions.
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Automotive Control Links: Piston gudgeon pins, universal joint journals, steering worms, and clutch hubs.
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Tooling & Mechanical Engineering: Guide bushings, cam lobes, friction rollers, and sub-assembly indexing shafts.
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Pneumatic / Hydraulic Tools: Wear blocks, internal valve pistons, and impact rods.
Weldability Advisory: As with all dedicated carburizing/case-hardening grades, welding structural joints using SS 2127 is broadly discouraged. Carburized zones will form localized brittle cracking zones near the heat-affected boundaries. If welding is absolute, it must be performed on the raw base metal prior to any case-hardening operations, accompanied by strict pre-heating protocols.
Engineered for Strength and Precision
SS 2127 Alloy Steel Bars and Rods are designed to withstand rigorous operational conditions, delivering outstanding mechanical properties such as high yield and tensile strength. Precision manufacturing ensures tight tolerances (h8, h9, h10) matched to diverse engineering standards, providing reliability in every application from automotive to construction.
Versatile Treatments and Finishes
These alloy steel bars are available annealed, normalized, or quenched & tempered, offering tailored solutions for various mechanical and structural requirements. With bright, black, and polished finishes, and processes like forging, peeling, and turning, each piece meets exact specifications for critical components like shafts, gears, and machine parts.
FAQ's of SS 2127 Alloy Steel Bar 2127 Round Bars 2127 Rods:
Q: How are SS 2127 Alloy Steel Bars typically processed to achieve their mechanical properties?
A: SS 2127 Alloy Steel Bars undergo heat treatments such as annealing, normalizing, or quenching and tempering. These processes enhance their strength, ductility, and toughness, ensuring that the bars meet high performance requirements for industrial applications.Q: What are the main advantages of using SS 2127 Alloy Steel Bars in construction and engineering?
A: The primary benefits include high yield and tensile strength, good machinability, and precise tolerance control. Their moderate corrosion resistance and customizable lengths and diameters make them suitable for structural, automotive, and machinery applications.Q: When should I opt for a specific surface finish like bright, black, or polished for SS 2127 bars?
A: The choice of finish depends on the application-bright and polished finishes are ideal for parts requiring smooth aesthetics and reduced friction (like shafts or gears), while black finishes are often used for general engineering purposes where appearance is less critical.Q: Where can SS 2127 Alloy Steel Bars be sourced in India?
A: SS 2127 Alloy Steel Bars are widely available from dealers, exporters, fabricators, manufacturers, producers, retailers, suppliers, and traders across India. Many suppliers offer customization and value-added services to meet specific project needs.Q: What processing techniques can be applied to SS 2127 Alloy Steel Bars for custom requirements?
A: These bars may be hot rolled, cold drawn, forged, peeled, or turned based on precise tolerance and surface needs. This ensures flexibility in meeting unique dimensional and mechanical requirements for specialized machine parts.Q: How does the moderate corrosion resistance of SS 2127 Alloy Steel impact its usage?
A: The moderate corrosion resistance makes it suitable for indoor or semi-protected environments, but additional surface treatment or coatings may be needed for exposure to harsh or corrosive conditions, especially in outdoor or chemical-prone settings.Tell us about your requirement
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