Hot Work Tool Steel 1.2888 Chemical Composition
Type:Plate/Round bar/Flat bar
Delivery condition: Annealed black surface/Turned bright surface
Products Description
1.2888 High-temperature and high-speed die steel, which has high strength, high temperature resistance and good wear resistance. 1.2888 High-temperature and high-speed die steel is mainly used for nozzle head, nozzle body, infusion tube, etc. of aluminum die-casting, magnesium alloy, copper die-casting molds.Extreme retention of hardness, suitable for all applications where particular resistance to high temperature wear and melt of metal is required.
Heat Treatment
1.2888 Quenching temperature: 1100-1150 ° Common tempering temperature: 600-750 ° Tempering hardening value/MPa 500 ° - 55 600 - 54 650 - 53 (surface hardness after surface hardening)
Physical properties (average values) at ambient temperature
Modulus of elasticity [103 x N/mm2]: 215
Density [g/cm3]: 8.08
Soft Annealing
Heat to 760-840℃, cool slowly in furnace. Time is 4-6 hours. This will produce a maximum Brinell hardness of 320.
Stress Relieving
Stress relieving to remove machining stresses should be carried out by heating to 600-650℃, holding for 1-2 hours at heat, followed by air cooling. This operation is performed to reduce distortion during heat treatment.
Hardening
Harden from a temperature of 1100-1150℃ followed by air, oil quenching or vacuum quenching. Hardness after quenching is about 52 HRC.
Products parameters
| Brand Name | Ravne No. | Mat. No. | DIN | EN | AISI |
| UTOPCO3 | 866 | 1.2888 | X20CoCrWMo10-9 | - | - |
1.2888 Chemical Composition %
| C | Si | Mn | Cr | W | Co |
| 0.20 | 0.25 | 0.50 | 9.50 | 5.50 | 10.0 |
Coefficient of Linear Thermal Expansion 10-6℃-1
| 20-100℃ | 20-200℃ | 20-300℃ | 20-400℃ | 20-500℃ | 20-600℃ | 20-700℃ |
| 12.1 | 12.1 | 12.4 | 12.9 | 13.5 | 14.0 |
14.1 |
Tempering Temperature (℃) vs. Hardness (HRC)
| 500℃ | 550℃ | 6000℃ | 650℃ | 700℃ | 750℃ |
| 56 | 56 | 55.5 | 54 | 48 |
42.3 |
Product Picture
Our factory
Steel Making
Ingot Production
Forged Bars
Machinary
Soft Annealing
Heat to 800-840℃, cool slowly in furnace. This will produce a maximum Brinell hardness of 250.
Stress Relieving
Stress relieving to remove machining stresses should be carried out by heating to 650℃, holding for one hour at heat, followed by air cooling. This operation is performed to reduce distortion during heat treatment.
Hardening
Harden from a temperature of 1020-1060℃ followed by oil, air or warm bath quenching. Hardness after quenching is 49-53 HRC.
Tempering
Tempering temperature: 600-750℃, to increase hardness, temper 2 or 3 times.
Applications
Extrusion tools for copper, copper alloys and steel, including special dies, die casting tools of all kind for brass, goosenecks and chambers for magnesium die casting, extrusion tools for steel. Nop water cooling.
Packing & Delivery
Packing & Delivery
-
The inner size of container is below:
-- 20ft GP: 5.8m(length) x 2.13m(width) x 2.18m(high)
-- 40ft GP: 11.8m(length) x 2.13m(width) x 2.18m(high)
-- 40ft HG: 11.8m(length) x 2.13m(width) x 2.72m(high)
Our Service
1. We are a specialized manufacturer. Competitive price and quality from our own factory .
2. Best service with 24 hour`s reply .
3. Flexible payment with T/T,L/C , etc .
4. Smooth production ability(1000tons/month).
5. Quick delivery and standard exporting package
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