High Speed Steel T4 Bars

Mourad Metals, located in Tunis, Tunisia, has earned a solid reputation as a reliable manufacturer and supplier of top-notch tool steels, including High Speed Steel T4 Bars. Renowned for their precision and commitment to high-quality standards, Mourad Metals crafts T4 bars that boast an impressive surface finish, precise dimensions, and consistent uniformity, ensuring they perform reliably in tough machining and industrial settings. These bars are specifically engineered for use in cutting tools, drills, milling cutters, taps, and dies, where wear resistance, toughness, and heat resistance are crucial. With a strong emphasis on strength, hardness, and durability, Mourad Metals guarantees that its High Speed Steel T4 Bars provide dependable performance even in challenging conditions.

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High Speed Steel T4 Round Rods

T4 Alloy High Speed Steel Bright Bars

T4 Alloy High Speed Steel Bars

What is High Speed Steel T4 Bars ?

High Speed Steel T4 Bars are primarily made of iron, containing about 0.9% carbon, along with significant amounts of tungsten, chromium, vanadium, and molybdenum. This carefully balanced composition results in outstanding hardness, wear resistance, and red hardness, allowing T4 bars to maintain their mechanical properties even at high temperatures. In terms of mechanics, T4 bars deliver high tensile strength, toughness, and remarkable resistance to deformation, making them perfect for precision cutting, shaping, and machining tasks where durability and performance are essential.

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High Speed Steel T4 Bars Specifications

Standard : ASTM A600, ASME SA600
Dimensions : EN, DIN, JIS, ASTM, BS, ASME, AISI
Form : Round
Diameter : 2mm to 100mm depending on grades
Length : 100 mm to 10,000 mm
Surface Condition : Black, Grinded, Turned Bright, Machined Proof
Application : Lathe Tools, Milling Cutter, Cutter Blades, Boring Tools, Twist drills, Milling Knives, Reamers, Taps, Metalcutting saws, Screw Cutting Tools, File Cutter’s Chissels, Drills, Hobs, Drill Bits, Tread cutting tools etc

Chemical Compositions of High Speed Steel T4 Bars

ASTM A600	C		Mn		P	S	Si		Cr		V		W		Mo		Co
T4	0.70	0.80	0.10	0.40	0.03	0.03	0.20	0.40	3.75	4.50	0.80	1.20	17.50	19.00	0.40	1.00	4.25	5.75
DIN ISO 4957	C		Mn		P	S	Si		Cr		V		W		Mo		Co
S 18-1-2-5/1.3255	0.75	0.83	…	0.40	0.03	0.03	…	0.45	3.80	4.50	0.80	1.20	17.50	18.50	0.50	0.80	4.50	5.50
JIS G4403	C		Mn		P	S	Si		Cr		V		W		Mo		Co
SKH3	0.73	0.83	…	0.40	0.03	0.03	…	0.45	3.80	4.50	0.80	1.20	17.00	19.00	…	…	4.50	5.50

Mechanical Properties of High Speed Steel T4 Bars

Density [g/cm3]	8.70
Properties	Metric	Imperial
Modulus of elasticity	190-210 GPa	27557-30458 ksi
Poisson’s ratio	0.27-0.30	0.27-0.30

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Equivalent Grades of High Speed Steel T4 Bars

Country	USA	German	Japan
Standard	ASTM A600	DIN EN ISO 4957	JIS G4403
Grades	T4/T12004	S 18-1-2-5/1.3255	SKH3

Thermal Properties of High Speed Steel T4 Round Bars

Properties	Metric	Imperial
Thermal expansion co-efficient	11.9 µm/m°C	6.6 µin/in°F

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High Speed Steel T4 Bars Types

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Frequently Asked Questions (FAQ)

How Are High Speed Steel T4 Bars Sized?

High Speed Steel T4 bars are sized by diameter and length, typically ranging from 1/4" to 10" in diameter, with standard lengths of 12 to 20 feet, depending on manufacturer specifications.

How Are High Speed Steel T4 Bars and Rods Manufactured?

High Speed Steel T4 bars and rods are manufactured through alloying, melting, forging, and heat treatment processes, followed by precision machining to achieve desired hardness, strength, and dimensional accuracy for industrial use.

How Should High-speed Steel T4 Bars Be Stored?

High-speed steel T4 bars should be stored in a dry, clean environment, protected from moisture and corrosion. Store them on flat, secure surfaces to prevent deformation or damage.

High Speed Steel T4 Bars Uses

These High Speed Steel T4 Bars find extensive application in the production of cutting tools, drill bits, milling cutters, taps, reamers, and dies within the metalworking industry. Their exceptional wear resistance and ability to retain hardness at elevated temperatures make them ideal for heavy-duty machining, high-speed cutting, and precision tooling operations. Engineers and manufacturers trust T4 bars for creating durable, long-lasting components that ensure efficiency, reliability, and minimal tool replacement in demanding industrial and manufacturing environments.

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