High Speed Steel T4 Bars

Al Summan Metals, a leading manufacturer and supplier based in Dubai, UAE, is recognized for producing high-quality High Speed Steel T4 (HSS T4) Bars. These bars are valued for their exceptional hardness, wear resistance, and toughness. Engineered with precision, they are capable of managing high-speed cutting, drilling, and machining operations, while retaining their performance even under elevated temperatures. Al Summan Metals is dedicated to strict quality control, guaranteeing dimensional accuracy and compliance with international standards, producing HSS T4 Bars that provide dependable, durable performance for tool and die manufacturing, metalworking, and industrial machinery applications.

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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 High Speed Steel T4 Bars consists of carbon, tungsten, chromium, vanadium, and molybdenum, all combined in precisely measured ratios. This distinctive alloying blend provides them with remarkable hardness retention under high temperatures, superb wear resistance, and notable toughness, rendering them ideal for challenging cutting applications. Regarding mechanics, HSS T4 Bars deliver a tensile strength of about 1,100–1,200 MPa and hardness values that reach up to 64 HRC, guaranteeing they can endure heavy loads and high-speed operations without warping.

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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 based on the 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 and more

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 measured by diameter and length, generally spanning from 1/4" to 10" in diameter, with typical lengths of 12 to 20 feet, based on manufacturer specifications.

How Are High Speed Steel T4 Bars and Rods Manufactured?

High Speed Steel T4 bars and rods are produced via alloying, melting, forging, and heat treatment operations, followed by precision machining to reach the required hardness, strength, and dimensional accuracy for industrial applications.

How Should High-speed Steel T4 Bars Be Stored?

High-speed steel T4 bars must be kept in a clean, dry area, shielded from humidity and rust. Place them on level, stable surfaces to avoid warping or harm.

High Speed Steel T4 Bars Uses

These High Speed Steel T4 Bars find broad use across industries that require precision and high-performance tooling. They’re ideal for producing drills, taps, reamers, milling cutters, lathe tools, and a range of other cutting instruments. On top of that, they serve a vital function in tool and die making, metal forming, and precision engineering, where longevity and wear resistance are critical. Thanks to their outstanding machinability, thermal stability, and toughness, HSS T4 Bars from Al Summan Metals deliver dependable performance in demanding industrial and manufacturing environments.

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