GOST 15KH Alloy Steel Bar 15KH Round Bars 15KH Rods

GOST 15KH Alloy Steel Bar 15KH Round Bars 15KH Rods

Name: GOST 15KH Alloy Steel Bar 15KH Round Bars 15KH Rods
Brand: JAYANT IMPEX
Price: 150.0 INR
Availability: InStock

150.0 INR/Kilograms

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Product Details:

Tolerance H9-H11
Technique Hot Rolled
Application Engineering, Automobile, Machinery Manufacturing
Length 2000-6000 mm
Material Alloy Steel (GOST 15KH)
Standard GOST
Diameter 10 mm to 300 mm
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GOST 15KH Alloy Steel Bar 15KH Round Bars 15KH Rods Price And Quantity

Price 150.0 INR/Kilograms
Minimum Order Quantity 1 Kilograms

GOST 15KH Alloy Steel Bar 15KH Round Bars 15KH Rods Product Specifications

Tolerance H9-H11
Technique Hot Rolled
Application Engineering, Automobile, Machinery Manufacturing
Length 2000-6000 mm
Specific Use Shafts, Fasteners, Automotive Components
Type Round Bar, Rod
Grade 15KH
Material Alloy Steel (GOST 15KH)
Standard GOST
Diameter 10 mm to 300 mm
Finish Smooth, Polished
Processing Rolled, Annealed

Supply Condition Annealed / As Rolled
Heat Treatment Available upon request
Surface Condition Bright, Black
Density 7.85 g/cm3
Hardness Max 217 HB
Alloying Elements Chromium (Cr), Carbon (C)
Packaging Standard Sea-worthy Packing

Product Description

GOST 15KH (Cyrillic designation: 15) is a classic structural low-carbon case-hardening (carburizing) alloy steel specified under the Russian GOST 4543 standard.

Similar to the European grades 17Cr3 and 16MnCr5, 15KH relies on a low carbon profile paired with a precise addition of chromium. It is engineered to undergo thermochemical case hardening, creating an ultra-hard, wear-resistant outer shell while retaining a resilient, ductile, shock-absorbing inner core.

Here is the technical profile for GOST 15KH alloy bars, round bars, and rods:

Chemical Composition (%)

The simple, efficient chemistry utilizes chromium primarily for grain refinement, uniform case depth development, and improved surface wear characteristics during the carburizing process.

Element	Min (%)	Max (%)
Carbon (C)	0.12	0.18
Chromium (Cr)	0.70	1.00
Manganese (Mn)	0.40	0.70
Silicon (Si)	0.17	0.37
Nickel (Ni)		0.30 (Max)
Copper (Cu)		0.30 (Max)
Phosphorus (P)		0.035 (Max)
Sulfur (S)		0.035 (Max)

International Cross-Reference & Equivalents

If you are cross-referencing global material lists for procurement, GOST 15KH is comparable to these alternative international designations:

European Standard: 17Cr3 / 1.7016 or 15Cr3 / 1.7015 (EN 10084)
USA / AISI (SAE): AISI 5015 (Closest chemistry match)
Japanese Standard:JIS SCr415 / SCr415H
Chinese Standard: GB 15Cr
British Standard: BS 523M15

Mechanical Properties (Typical Core Values after Q+T)

After components are machined, gas or pack carburized, quenched, and low-temperature tempered, the structural core exhibits highly reliable mechanical properties:

Tensile Strength ( $R_m$ ): $ge 690 text{ MPa}$
Yield Strength ( $R_e$ ): $ge 490 text{ MPa}$
Elongation ( $A_5$ ): $ge 12%$
Reduction of Area ( $psi$ ): $ge 45%$
Typical Annealed Hardness: $le 179 text{ HB}$ (Brinell), ensuring fast, low-friction rough machining and drilling.

Typical Applications

Because it limits heat-treat distortion and maximizes cost efficiency for smaller to medium-sized components, 15KH round bars and rods are widely used for parts exposed to high friction and cyclical contact stresses:

Machinery & Gearboxes: Small-diameter gears, spline shafts, pinions, and planetary gear carriers.
Automotive Mechanisms: Piston pins, steering knuckles, selector shafts, link pins, and universal joint spiders.
Industrial Tooling & Hardware: Guide pillars, high-wear bushings, mechanical indexing pins, toggle arms, and specialized structural fasteners.

Processing & Fabrication Characteristics

Supply Profiles: Available as hot-rolled black bar, forged shafts, or precision cold-drawn bright rod.
Excellent Weldability: In its raw supply state (prior to thermochemical case-hardening), 15KH can be welded without limitations or preheating requirements. However, once it has been carburized and hardened, welding is strongly discouraged due to the risk of surface cracking.
Heat Treatment Benchmark: Carburization is typically conducted between $880^circtext{C}$ and $950^circtext{C}$ . This is followed by a secondary case quenching at $770^circtext{C} - 820^circtext{C}$ into water or oil, completed with a low-temperature stress-relief temper around $180^circtext{C}$ to lock in maximum surface hardness ( $58-62text{ HRC}$ ).

Superior Alloy Composition for Demanding Applications

GOST 15KH Alloy Steel Bars are precisely crafted from alloy steel rich in chromium and carbon. These alloying elements provide enhanced resistance to wear and corrosion, making the bars particularly suitable for engineering, automotive, and heavy machinery sectors. Each bar undergoes rigorous quality checks and is available with smooth, polished finishes, delivering both mechanical performance and visual appeal.

Customized Processing and Surface Conditions

Choose from bright or black surface conditions, depending on your operational needs. Whether supplied annealed or as rolled, each rod and bar can be tailored via various heat treatment options upon request. The processing techniques ensure tightly controlled tolerances (H9-H11), uniform mechanical properties, and superior finish quality, ready for immediate integration into your production lines.

Reliable Packaging and Versatile Applications

Every shipment of GOST 15KH bars and rods is delivered in standard sea-worthy packaging to ensure integrity during transit. With a broad spectrum of sizes and finishes, these bars are widely used for shafts, fasteners, and automotive components in India and internationally. As a trusted supplier, manufacturer, and exporter, we ensure our products meet industry standards and diverse engineering requirements.

FAQ's of GOST 15KH Alloy Steel Bar 15KH Round Bars 15KH Rods:

Q: How are GOST 15KH Alloy Steel Bars typically processed and supplied?

A: 15KH Alloy Steel Bars are processed using hot rolling techniques and can be supplied either annealed or as rolled. Upon request, additional heat treatments are available to meet specific mechanical property requirements. Surface finishes include bright and black, with tolerance levels of H9-H11 for precise sizing.

Q: What are the main applications of 15KH Round Bars and Rods?

A: These bars and rods are widely used in engineering, automobile manufacturing, and machinery production. Specific applications include shafts, fasteners, and automotive components, where durability, strength, and reliable performance are essential.

Q: When is heat treatment recommended for these alloy steel rods?

A: Heat treatment is recommended when specific mechanical properties, such as increased hardness or improved toughness, are required. Customers can request heat treatment services based on their unique application needs and operating environments.

Q: Where are GOST 15KH bars commonly used in India?

A: GOST 15KH Alloy Steel Bars are commonly utilized by engineering firms, auto manufacturers, and machinery fabricators throughout India. As versatile components, they serve in various sectors that demand high-quality alloy steel products.

Q: What are the benefits of choosing 15KH rods with a smooth, polished finish?

A: Opting for rods with a smooth, polished finish minimizes surface irregularities, enhances corrosion resistance, and improves the visual appeal of the final product. This finish also facilitates better fitment in assemblies and reduces friction during operation.

Q: How is the packaging for GOST 15KH steel bars ensured for export?

A: All bars and rods are packed in standard sea-worthy packaging, safeguarding them from moisture, contamination, and mechanical damage during transportation. This ensures the material reaches its destination in optimal condition, ready for immediate use.

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