High Speed Steel T4 Bars

Aung Metals, a prominent manufacturer and supplier located in Naypyidaw, Myanmar, is known for crafting top-notch High Speed Steel T4 (HSS T4) Bars. These bars are celebrated for their remarkable hardness, wear resistance, and toughness. Designed with precision, they can handle high-speed cutting, drilling, and machining tasks, all while maintaining their performance even in elevated temperatures. Aung Metals is committed to rigorous quality control, ensuring dimensional accuracy and adherence to international standards, which results in HSS T4 Bars that deliver reliable, long-lasting 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 includes carbon, tungsten, chromium, vanadium, and molybdenum, all blended in carefully measured proportions. This unique alloying mix grants them exceptional hardness retention at high temperatures, outstanding wear resistance, and impressive toughness, making them perfect for demanding cutting tasks. In terms of mechanics, HSS T4 Bars boast a tensile strength of around 1,100–1,200 MPa and hardness levels reaching up to 64 HRC, ensuring they can withstand heavy loads and high-speed operations without deforming.

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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 are extensively utilized in industries that demand precision and high-performance tooling. They’re perfect for creating drills, taps, reamers, milling cutters, lathe tools, and various other cutting instruments. Additionally, they play a crucial role in tool and die making, metal forming, and precision engineering, where durability and wear resistance are essential. With their excellent machinability, thermal stability, and toughness, HSS T4 Bars from Aung Metals offer reliable performance in challenging industrial and manufacturing settings.

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