
Wear resistance tool steel & High Speed Steel Flat Bars
(1.3355/SKH2/T1)
Smelting Method
Non-Vacuum Induction Furnace + LF + ESR
Feature
T1 is belong to tungsten high speed steel,T1 is a good carbide former used in high speed steels and hot forming tool steels. It is a steel gray metal that increases temperature and red hardness, prevents gain growth and improves toughness of steels.
Chemical Composition Table (%)
Item | C | Si | Mn | S | P | W | Cr | V |
Min | 0.73 | 0.20 | 0.10 | 17.20 | 3.80 | 1.00 | ||
Max | 0.83 | 0.40 | 0.40 | 0.030 | 0.030 | 18.70 | 4.50 | 1.20 |
Physical Property
Thermal Conductivity at °C | 20 | 350 | 700 |
W/(m*K) | 32.8 | 23.5 | 25.5 |
Density (g/cm3) | 8.70 | 8.67 | 8.60 |
Heat Treatment Instruction
Treatment | Temperature Range | Cooling/Quenching | Notes |
Forging | 1700-2100° F | Slow. | Cool slowly in dry sand or in other insulating media. |
Annealing | 1600-1650° F | Cool slowly at a rate of 35° F per hour to 1000° F. | For best results, insulating media is desirable. Hold at temperature for 2 hours. |
Stress Relieving | 1100-1300° F | Cool slowly | Stress relieve after rough machining |
Preheating | 1500-1550° F | Preheat time in furnace is ¾ Hr. per inch of thickness. Heating up to temperature as slow as possible. | |
Hardening | 2325-2375° F (furnace) 2275-2350° F (salt bath) | Quench in air or warm oil. To minimize quenching strains, quench in salt at 1000° F | For maximum wear resistance, harden at 2375° F. For maximum toughness and high hardness, harden at 2275° F. |
Tempering | (See Chart) | Double tempering is recommended. The usual tempering time is 2+2 hours. Recommended temperature is 1000-1075° F for cutting tools. 1100-1200° F for shock tools |
Picture Show:
Our main products:
STANDARD/GRADE | Flat Bar Size(mm) | Round bar Size(mm) | Technics | ||||||
DIN | AISM | JIS | GB(China) | Thickness | Width | Length | Diameter | Length | |
1.121 | SAE1050 | S50C | 50# | 10-450 | 155-2200 | 2000-12000 | Forged, Hot Rolled | ||
1.2311 | P20 | PDS-3 | 3Cr2Mo | 10-460 | 155-2200 | 2000-10000 | 20-200 | 2000-6000 | |
1.2738 | P20+Ni | - | 3Cr2NiMnMo | 21-300 | 155-2200 | 2000-8000 | 20-200 | 2000-6000 | |
1.2379 | D2 | SKD10 | SKD10 | 10-200 | 155-810 | 2000-6000 | 14-80 | 3000-6000 | |
1.2080 | D3 | SKD1 | 3Cr2Mo | 10-200 | 155-810 | 2000-6000 | 20-200 | 3000-6000 | |
1.2083 | 420 | - | 4Cr13 | 10-500 | 155-1200 | 2000-6000 | 12-300 | 3000-6000 | |
1.2344 | H13 | SKD61 | 4Cr5MoSiV1 | 10-500 | 155-1600 | 2000-6000 | 16-400 | 3000-6000 | |
1.2510 | O1 | SKS3 | 9CrWMn | 10-200 | 155-810 | 2000-6000 | 20-200 | 3000-6000 | |
1.7225 | SAE4140 | SCM440 | 42CrMo | 10-280 | 155-2200 | 2000-6000 | 16-450 | 3000-6000 |
About Us
Guangzhou Changfeng Steel Co., Ltd. is a professional special steel company, which specializing in
this line in China since 2005. Our main products are Plastic Mould
Steel, Hot Work Mould Steel, Cold Work Mould Steel, Alloy
Structural Steel, Tool Steel, Stainless Steel, Carbon Steel and
Forged Block.
Guangzhou Changfeng Steel Co., LTD
Guangzhou ChangFeng Steel Co., Ltd. is a professional special steel company, which specialized in exporting mould steel products based in China.With twenty years experience in special steel industry, our main products are Plastic Mould Steel, Hot Work Mould Steel, Cold Work Mould Steel, Alloy Structural Steel, Tool Steel, Stainless Steel, Carbon Steel and Forged Block.
To ensure provide high quality products to customers, we have close cooperation with many Chinese first class special steel enterprises, including Baosteel Group, Dongbei Special Steel, Changcheng Special Steel, Hongsheng Heavy Industry, Xingcheng Special Steel, Daye Special Steel. We have thousand tons of stock materials in our own factory and also can provide processing services to customers. We are full of export experience for many years, the product covers America, Germany, France, Italy, Turkey, Singapore, Thailand, Malaysia, Vietnam, Taiwan, and Middle-East.
After years of development, the company has established a complete quality management and export service system. We have a group of experienced and competent elites and is capable of offering the best service to clients. Our company equips with large-sized Vertical saw machines, Horizontal saw machines, Milling machines, Grinding machines and other advanced equipments to provide customers with cutting and other processing services. All the products should be inspected the metallographic analysis, hardness, ultrasonic flaw detection and other strict inspection processes, which meet the standards of DIN, AISI, JIS and GB to ensure their function and quality.
Our company keeps the principle of “sincerely cooperation, endless striving for perfection”. We desire to establish the long-term mutual beneficial and win-win relationship with clients all over the world.