High Speed Steel T15 Bars

Isis Metals, a top Manila-based manufacturer and supplier, is known for its ability to provide high-quality metal products engineered for industrial performance and precision. Among its top-of-the-line products, High-Speed Steel (HSS) T15 Bars are notable for their superior hardness, abrasion resistance, and heat resistance. Being made from tungsten–molybdenum-based alloys, these bars provide excellent performance even under high-temperature conditions, thus being the best choices for precision tooling and high-speed machining. Commonly utilized in the manufacturing of cutting tools, drill bits, and heavy machinery, Isis Metals’ T15 Bars guarantee stability, dependability, and solidity—fulfilling the strict requirements of industries like aerospace, automotive, and manufacturing with unwavering excellence.

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What is High Speed Steel T15 Bars ?
High Speed Steel T15 Bars Specifications
Chemical Compositions of High Speed Steel T15 Bars
Mechanical Properties of High Speed Steel T15 Bars
Equivalent Grades of High Speed Steel T15 Bars
Heat Treating of High Speed Steel T15 Round Bars
High Speed Steel T15 Bars Types
Frequently Asked Questions (FAQ)
High Speed Steel T15 Bars Uses
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What is High Speed Steel T15 Bars ?

High-Speed Steel T15 Bars consist of around 12% Tungsten (W), 4% Chromium (Cr), 1.8% Vanadium (V), 0.5% Molybdenum (Mo), and 0.8% Carbon (C), and traces of Manganese (Mn) and Silicon (Si). This composition provides T15 steel exceptional hardness, excellent heat resistance, and greater wear resistance. Mechanically, it provides a Rockwell hardness of 62–66 HRC, tensile strength of up to 2800 MPa, and good resistance to thermal fatigue. These properties make T15 a suitable tool material for demanding high-speed machining operations that need strength, accuracy, and long tool life under sever operating conditions.

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High Speed Steel T15 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 T15 Bars

ASTM A600	C	Si	Mn	Cr	Mo	P	S	V	W	Co
T15	1.50～1.60	0.15～0.40	0.15～0.40	3.75～5.00	≤1.00	≤0.030	≤0.030	4.50～5.25	11.75～13.0	4.75～5.25
DIN W-Nr	C	Si	Mn	Cr	Mo	P	S	V	W	Co
1.3202	1.30～1.45	≤0.45	≤0.40	3.80～4.50	0.70～1.00	≤0.030	≤0.030	3.50～4.00	11.50～12.50	4.50～5.00
GB/T	C	Si	Mn	Cr	Mo	P	S	V	W	Co
W12Cr4V5Co5	1.50～1.60	0.15～0.40	0.15～0.40	3.75～5.00	＜1.00	≤0.030	≤0.030	4.50～5.25	11.75～13.00	4.75～5.25
BS	C	Si	Mn	Cr	Mo	P	S	V	W	Co
BT15	1.40～1.60	≤0.40	≤0.40	4.25～5.00	≤1.00	≤0.030	≤0.030	4.75～5.25	12.0～13.0	4.50～5.50
JIS	C	Si	Mn	Cr	Mo	P	S	V	W	Co
SKH10	1.45～1.60	≤0.45	≤0.40	3.80～4.50	–	≤0.030	≤0.030	4.20～5.20	11.50～13.50	4.20～5.20

Mechanical Properties of High Speed Steel T15 Bars

Density	0.296 lb/in3 (8193 kg/m3)
Modulus Of Elasticity	30 x 106 psi (207 GPa)
Machinability	40-45% of a 1% carbon steel
Specific Gravity	8.19

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Equivalent Grades of High Speed Steel T15 Bars

AISI/ASTM	Werkstoff	EN/DIN	BS	JIS/KS
T15	1.3202	S12-1-4-5	BT15	SKH10

Heat Treating of High Speed Steel T15 Round Bars

Annealing	Preheat	Austenitizing	Quench	Tempering
Temp °F	Temp °F	Temp °F	Medium	Temp °F
1550/1600	1500/1550	2200/2250	Salt/Oil/Atm	1025/1050

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High Speed Steel T15 Bars Types

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Frequently Asked Questions (FAQ)

How Are High Speed Steel T15 Bars Sized?

High-Speed Steel T15 bars are sized by their diameter and length, typically ranging from small diameters for precision tools to larger sizes for heavy-duty applications, tailored to customer specifications.

Are High Speed Steel T15 Bars Recyclable?

Yes, High-Speed Steel T15 bars are recyclable. They can be melted down and repurposed into new products, making them an environmentally friendly option for sustainable manufacturing and reducing material waste.

How Should High-speed Steel T15 Bars Be Stored?

High-speed Steel T15 bars should be stored in a dry, cool environment, away from moisture and extreme temperatures. They should be kept on racks or pallets to prevent rust and damage.

High Speed Steel T15 Bars Uses

HSS T15 Bars find widespread application in various industries to develop high-performance machining and cutting tools that need to withstand intense heat and wear and tear. They are generally used in the production of drills, reamers, taps, milling cutters, saw blades, and broaches, wherein sharpness and hardness at higher speeds need to be maintained. T15’s superior red-hardness and toughness allow it to be applied in cold-working tools and high-pressure machining processes. Its superior performance at high temperatures also finds it a material of choice in aerospace, automotive, and metalworking industries, where accuracy, durability, and extended service life are paramount to high-efficiency manufacturing and consistent tooling performance.

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