AISI T15 High Speed Steel Round Bar Flat Forged and Rolled

• Type: Round
• Standard: AISI, ASTM, DIN, JIS, GB, BS
• Composition: Stainless Steel Scrap
• Technique: Hot Rolled
• Shape: Bar
• Surface Treatment: Black/Milled/Machined
• Model NO.: round bar
• Special Use: High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel
• Application: Tool Steel Bar
• Transport Package: Wooden
• Specification: 6-400mm
• Trademark: Smooth
• Origin: China
• HS Code: 7214100000
• Production Capacity: 5000 Ton/Year

Product Description

T15 high speed steel
T15 is a high-speed tool steel known for its exceptional wear resistance, hardness, and heat resistance at elevated temperatures. It belongs to the tungsten-based high-speed steel group and is commonly used in cutting tools, milling cutters, and machining applications where high temperatures and abrasive wear are prevalent.

T15 high speed steel equivalent and tool steel chemical composition:(%)

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

Properties:

1. Exceptional Wear Resistance: T15 steel offers outstanding wear resistance, making it suitable for cutting, milling, and drilling applications where abrasive wear is a concern.
2. High Hardness: It exhibits high hardness even at elevated temperatures, enabling it to maintain cutting edge sharpness and dimensional stability during machining operations.
3. Excellent Heat Resistance: T15 steel retains its hardness and strength at high temperatures, allowing it to withstand the thermal stresses encountered during high-speed machining.
4. Good Toughness: Despite its high hardness, T15 steel retains good toughness, which helps prevent chipping and fracture during cutting and machining processes.
5. High Red Hardness: It possesses high red hardness, meaning it can maintain its hardness and cutting ability even at elevated temperatures, reducing tool wear and extending tool life.
6. Fine Grain Structure: T15 steel is characterized by a fine grain structure, contributing to its excellent toughness, wear resistance, and machinability.

Heat Treatment:
T15 steel undergoes a series of heat treatment processes to achieve its desired mechanical properties:

• Annealing: Heat to 850-900°C, followed by slow cooling in the furnace to relieve internal stresses and refine the grain structure.
• Hardening: Heat to 1190-1230°C, followed by oil quenching to achieve maximum hardness.
• Tempering: Temper at 540-565°C to improve toughness and reduce brittleness while maintaining high hardness.

Surface Treatment:
Surface treatments such as coating with TiN (Titanium Nitride) or TiAlN (Titanium Aluminum Nitride) can further enhance the wear resistance and lubricity of T15 steel cutting tools, extending tool life and improving machining performance.

Applications:
T15 steel is commonly used in the manufacturing of:

1. High-speed cutting tools such as drills, taps, reamers, and end mills for machining hardened steels, stainless steels, and high-temperature alloys.
2. Milling cutters for milling operations in aerospace, automotive, and mold and die industries.
3. Cutting inserts and blades for metalworking and woodworking applications requiring high wear resistance and cutting performance.

Quality Assurance:
T15 steel is produced and processed according to industry standards such as ASTM A600 and ISO 4957, ensuring consistent quality, dimensional accuracy, and performance in various applications.

Environmental Considerations:
In the production and processing of T15 steel, environmental considerations such as energy efficiency, waste management, and emissions control should be addressed to minimize environmental impact and promote sustainability in the industry.