Material Name: Carbon Tool Steel
Grade: T10A
Standard: GB / T 1298-1986
● Features and application:
The steel strength and high wear resistance than T8 and T9, but the hot hardness is low, not high hardenability and hardening deformation. Suitable for the manufacture of cutting conditions are poor, higher wear resistance, and is not a sudden and severe vibrations, requires a certain toughness and a sharp knife-edge tools, such as turning, planing, drilling, cutting machine, precision and low profile simple measuring tools (such as card board, etc.), can be used without a large impact on the wear-resistant parts.
● Chemical Composition: C: 0.95 ~ 1.04
Si Si: ≤ 0.35
Manganese Mn: ≤ 0.40
Sulfur S: ≤ 0.020
Phosphorus P: ≤ 0.030
Chromium Cr: promised to the residual content of ≤ 0.25, ≤ 0.10 (when manufacturing lead bath quench wire)
Ni: to promise the residual content of ≤ 0.20, ≤ 0.12 (when manufacturing lead bath quench wire)
Copper Cu: agreed to the residual content of ≤ 0.30, ≤ 0.20 (when manufacturing lead bath quench wire)
Note: The promise of residual content of Cr Ni Cu ≤ 0.40 (when manufacturing lead bath quench wire)
● Mechanical Properties:
Hardness: Annealed, ≤ 197HB, indentation diameter ≥ 4.30mm; quenching, ≥ 62HRC
● Heat treatment and microstructure specifications:
Heat treatment specifications: sample quenching 760 ~ 780 ℃, water-cooled.
● Delivery status: the status of delivery of steel to annealing. By mutual agreement, may not annealed state delivery.
T10A steel properties
Common low-hardenability cold die steel, high carbon tool steel, the advantage of good processability, low price, easy to source, but poor hardenability, quenching deformation, because the steel contains less alloy elements, tempering resistance is low, so low carrying capacity. Although high hardness and wear resistance, but a small section of the workpiece lack of toughness, large cross-section section of billet mesh carbide residual tendency.
After globalization, the minimum heating temperature of 740 ℃, the best isothermal temperature of 690 ℃ -720 ℃, there flake carbide heating temperature 780 ℃, heat softening temperature of 250 ℃, hardening depth of water quenching 15-18mm, 5 oil quenching -7mm.
The steel in the annealed condition for roughing, and then quenching and tempering high hardness, and then finishing. To obtain high wear resistance and mirror polishing. For low-carbon martensitic low-temperature quenching, the galaxy has a high abrasion strength and toughness, prevent and reduce the deformation and cracking phenomena
T10A typical application examples:
1 dies for the production of general, bulk <100 000, the material was washed for soft-state low-carbon steel, material thickness less than 1mm.
2 for the manufacture of cold drawn, drawing die, wear tolerance at work, you can go through high-temperature tempering, then conventional quenching, self-shrinkage recovery thick.
3 for the manufacture of cutting thickness of 11mm thick steel plate in the long blade, the implementation of shell hardening, the fatigue and his wife high and low chipping tendency for longer than 7 times higher 9CrWMn steel.
4 soft silicon steel for punching the holes.
5 can be used to make material thickness less than 3mm punch die punch, die, inserts, do punch hardness hardness when used 58-62HRC; do die are used hardness 60-64HRC.
6 can be used to make general bending punch, die, inserts, hardness, use 56-60HRC.
7 Creating a general drawing die punch, die, inserts, when asked to do the punch hardness selected 58-62HRC; do die are used hardness 60-64HRC.
8 for the manufacture of aluminum cold extrusion die in the die used when hardness 62-64HRC.
9 Die for a variety of small and medium volume production, and the need to apply in the shell-hardened condition of the overall style cold heading die, punching tools.
10 for the cold punch (punch), light load, the next size, hardness 58-60HRC; for cold heading die hex nut, hardness 48-52HRC.
11 use of the steel used to make a simple drawing and stamping die mold.
