Payment & Shipping Terms:
|Test:||SGS/Ut 100%/Element Testing||Ut Standard:||Sep 1921-84 Class 3 C/C To D/D|
|Tolerance:||0/+1.0mm(turned) -0/+5.0mm(black),0/+1mm||Special Use:||Cutting Tools, Measuring Tools, Wear Resistant Steel|
|Size:||6-200*155-810*3000-6000mm And Dia 15-200||HS Code:||722540|
carbon tool steel,
tool steel flat bar
Alloy steel cold work steel din1.2379 AISI D2 Cr12Mo1V1 MOV tool steel plate
Hot rolled alloy steel cold work steel D2 Steel Bar for tooling and die
DC53, 1.2990, GS-821, ASSAB 88, SLD-MAGIC, AISI D2, W.-Nr. 1.2379
Chemical Composition (%)
|Size of Steel grade 1.2379 mechanical properties|
|Round bar||Diameter(mm)||Length (mm)|
|Plate||Thickness(mm)||Width (mm)||Length (mm)|
|The specification can be customized.|
|Heating temperature/ºC||Cooling way||Hardness (HRC)||Tempering temperature
|First preheating||Second preheating||Last heating|
Heat the 1.2379 tool steel slowly and uniformly to 700°C then more rapidly to 900-1040°C. After forging cool down slowly.
As supplied 1.2379 is in the annealed and machineable condition. Re-annealing will only be necessary if the steel has been forged or hardened by the toolmaker. To anneal, heat slowly and uniformly to 900°C. Soak for three to four hours and allow to cool in the furnace to room temperature. Re-heat to 800-1040°C and again soak for three to four hours. Allow to cool in the furnace to room temperature.
If tools are heavily machined, ground or otherwise subjected to cold work, the relief of internal strains is advisable before hardening to minimise the possibility of distortion. Stress relieving should be done after rough machining. To stress relieve, heat the 1.2379 steel component to 600-650°C. Soak well and cool in the furnace or in air. The tools may then be finish machined before hardening.
It is preferable to heat the tools in a controlled atmosphere. If this is not possible, pack hardening is recommended. A reducing atmosphere is desirable. Pre heat the 1.2379 tool steel component to 750-800°C. and allow to soak at this temperature. The tool temperature should then be brought up to 1000-1040°C for air cooling, or 980°C for oil quenching. Soak thoroughly at the temperature for thirty minutes per 25mm of ruling section, then cool or quench accordingly. It is important not to exceed 1020°C when heating for hardening.
Double tempering of is recommended. The tempering should be done with the least possible delay after hardening, preferably when the tools are still hand warm. Select a suitable tempering temperature, bearing in mind the service requirements. Heat slowly and uniformly. When the 1.2379 component has reached the desired temperature, soak for at least sixty minutes. The second tempering should be a repetition of the first.
Cold Work Alloy Tool Steel for Cutters D2 SKD11 1.2379 round & flat bar
A,High wear resistance and toughness.
B,Alternative to oil harding tool steel.
C, Offer a measure of corrosio resistance when polished.
A,Used for making various high precision,long-life cold work mould.
B,Cold heading die, thermosetting resin molding mold, senior gauge, etc.
C,Deep drawing forming die, cold extrusion dies.
Q1: What do you do for the control of the quality?
A1: Before loading into the container, our products will all be inspected by ultrasonic inspection. Quality Grade conforms to SEP 1921-84 E/e, D/d, C/c as per customer's request.
Q2:: What are your hot-selling products ?
A2: S50C / P20 / D2 / 1.2379 / H13 / 1.2344 / CR12MOV / 4140 /EN19 EN24 EN31, abundant stock for both plates and rounds. Competitive prices and short lead-time.
Q: Can we visit your company and factory?
A: Yes, warmly welcome! We can book the hotel for you before you come to China and arrange our driver to our airport to pick you up when you come.
Contact Person: Echo