High Speed Steel T4 Bars

Nestled in the industrial heart of Safat, Kuwait, Nimish Metal has built a solid reputation as a trusted supplier and manufacturer, providing industry with top-tier materials. We take particular pride in our High-Speed Steel T4 Bars, which represent the pinnacle of durability and performance. These bars are engineered for professionals who refuse to compromise, designed to excel in the most demanding cutting and machining applications where both precision and longevity are non-negotiable. When your work demands the best, our T4 bars deliver.

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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 ?

The composition of our High-Speed Steel T4 Bars is a sophisticated blend, featuring a significant amount of tungsten, along with chromium, vanadium, and cobalt. This specific formula gives the steel exceptional red-hardness, meaning it retains its hardness and strength even at very high temperatures. Mechanically, this translates into superior wear resistance and an impressive ability to withstand heavy loads and high-speed operations without deforming or breaking down prematurely.

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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

The primary use for these bars is in the manufacture of cutting tools, where performance is everything. They are expertly fashioned into drills, taps, milling cutters, and other tools that must maintain a sharp edge under intense, high-speed conditions. Beyond cutting tools, their durability makes them an excellent choice for high-performance machine components like precision bearings and wear-resistant parts, especially where heat buildup is a constant challenge and failure is simply not an option.

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