Carbon Steel EN-31 R-100 Bars

When it comes to high-quality Carbon Steel EN-31 R-100 Bars, Rupal Metals stands out as a trusted manufacturer and supplier based in Delhi, India. This high-carbon chromium steel grade is celebrated for its remarkable hardness, wear resistance, and impressive tensile strength. We offer EN-31 R-100 bars in a variety of diameters and lengths, all crafted to meet rigorous industry standards. These bars find their place in automotive, bearing, tool, and general engineering sectors, where a superior surface finish and abrasion resistance are essential. With our EN-31 bars, you can count on optimal performance for heavy-duty and high-precision applications.

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Carbon Steel EN-31 R-100 Round Bars

Carbon Steel EN-31 R-100 Hex Bars

Carbon Steel EN-31 R-100 Series Rods

What is Carbon Steel EN-31 R-100 Series Bars ?

Carbon Steel EN-31 R-100 typically features a carbon content ranging from 0.90% to 1.20%, along with 1.00% to 1.60% chromium, and small amounts of manganese, silicon, and trace elements like sulfur and phosphorus. This alloy boasts a high tensile strength of up to 750–1000 MPa and can achieve excellent hardness levels of up to 60 HRC after heat treatment. Known for its outstanding wear resistance and good toughness, EN-31 R-100 maintains its surface integrity even under high stress. It responds exceptionally well to hardening and tempering, making it perfect for components that face high friction and repetitive mechanical loading.

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Carbon Steel EN-31 R-100 Bars Specifications

Grades	EN 8, EN 19, EN 24, EN 31
Dimensions	EN, DIN, JIS, ASTM, BS, ASME, AISI
Carbon Steel EN Series Round Bars	3.0 – 50.8 mm, Over 50.8 – 300mm
Carbon Steel EN Series Rectangular Bars	6.35 x 12.7mm,6.35 x 25.4mm,12.7 x 25.4mm
Carbon Steel EN Series Hex Bars	AF5.8mm–17mm
Carbon Steel EN Series Square Bars	AF2mm – 14mm, AF6.35mm,9.5mm,12.7mm, 15.98mm,19.0mm, 25.4mm
Carbon Steel EN Series Flat Bars	1/2” to 10” in thickness range of 2mm to 150mm
Length	1 to 6 Meters, Custom Cut Lengths
Finish	Bright, Polish & Black
Form	Round, Square, Hex (A/F), Rectangle, Wire (Coil Form), Wire-mesh, Billet, Ingot, Forging Etc.

Chemical Compositions of Carbon Steel EN-31 R-100 Bars

Carbon	0.95 / 1.10
Manganese	0.40 / 0.70
Silicon	0.10 / 0.35
Sulfur	Max 0.050
Phosphorus	Max 0.040
Chromium	1.20 – 1.60

Mechanical Properties of Carbon Steel EN-31 R-100 Bars

NAME OF MATERIAL	COMPOSITION IN % OF WEIGHT		THERMAL CONDUCTIVITY W/M-K	DENSITY KG/M^3	MELTING POINT
	C	Mn Si Cr S P Mg
En-31 IS-103 Crl	1.5	0.52 0.22 1.3 0.05 0.05 –	46.6	7810	1540

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Carbon Steel EN-31 R-100 Bars Types

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Equivalent Grades Carbon Steel EN-31 R-100 Bars

BRITISH BS 970:1991	535A99
BRITISH BS 970:1955	EN31
GERMAN DIN	100CR6
FRENCH AFNOR	100C6
SWEDISH SS	2258
AMERICAN SAE / AISI	52100

Frequently Asked Questions (FAQ)

What are the key features of Carbon Steel EN-31 R-100 Bars and Rods?

They offer high hardness, excellent wear resistance, and durability, making them ideal for heavy-duty and high-performance applications.

What industries use EN-31 R-100 Bars and Rods?

They are commonly used in automotive, engineering, and tooling industries for components like gears, shafts, dies, and cutting tools.

Can EN-31 R-100 Bars and Rods be customized?

Yes, we provide EN-31 R-100 Bars and Rods in various sizes and specifications tailored to meet specific application requirements.

Carbon Steel EN-31 R-100 Bars Uses

At Rupal Metals, our Carbon Steel EN-31 R-100 Bars are extensively utilized across various industries, including automotive, tooling, bearing, gear, and precision engineering. Common applications encompass roller bearings, ball bearings, spindles, punches, dies, shafts, and gears that require high hardness and wear resistance. Thanks to the alloy’s excellent response to heat treatment and surface hardening, it’s ideal for high-load and high-wear components that demand precision and durability. Rupal Metals ensures that our EN-31 R-100 bars maintain consistent metallurgical quality, delivering the reliability you need for your projects.

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