1.2329, 46CrSiMoV7, Hot Work Tool Steel
General
1.2329 is a chromium-nickel-molybdenum-vanadium alloyed hot work tool steel which is characterized by:
- Good toughness
- Good resistance to high thermal stresses
- Good stability in hardening
- Good through-hardening properties
| Typical
analysis % |
C
0.45 |
Si
0.7 |
Mn
0.8 |
Cr
1.8 |
Ni
0.5 |
Mo
0.3 |
V
0.2 |
| Standard
specification |
W.-Nr. 1.2329, DIN 46 CrSiMoV7 | ||||||
| Delivery
condition |
Soft annealed to max. 250 HB. | ||||||
| Colour code | Red/black | ||||||
We can provide more services:
1、Hardening and tempering
2、Vacuum heat treatment
3、Polished bright surface
4、Milling bright surface
5、CNC machine
6、Deep drilling
7、Cut into small pieces
8、Make it closer to the mold
Welcome to inquiry price from drawing
Applications
1.2329 is ideally suited for support parts for extrusion tooling, e.g. wedge blocks and bolsters.
Properties
Hardened and tempered to hardness 40 HRC. Data at room and elevated temperatures.
| Temperature | 20°C
(68°F) |
200°C (390°F) | 400°C
(750°F) |
| Density
kg/m3 lbs/in3 |
7 780 0.281 |
7 730 0.279 |
7 670 0.277 |
| Coefficient of
thermal expansion per °C from 20°C per °F from 68°F |
– – |
12.9 x 10–6 7.1 x 10–6 |
13.6 x 10–6 7.5 x 10–6 |
| Modulus of elasticity
N/mm2 psi |
205 000 29.7 x 106 |
195 000 28.3 x 106 |
180 000 26.1 x 106 |
| Thermal conductivity*
W/m°C Btu in(ft2h°F) |
30 211 |
31 218 |
30 211 |
Heat treatment
Soft annealing
Protect the steel and heat through to 780°C (1435°F). Then cool in the furnace at 15°C
(25°F) per hour to 650°C (1200°F),then freely in air.
Stress relieving
After rough machining the tool should be
heated through to 650°C (1200°F), holding time 2 hours. Cool slowly to 500°C (930°F), then freely in air.
Hardening
Pre-heating temperature: 600–700°C (1110– 1290°F).
Austenitizing temperature: 880–920°C (1615– 1690°F) normally 900°C (1650°F).
Soaking time 30 minutes. Soaking time = time at hardening temperature after the tool is fully heated through.
Protect the part against decarburization and oxidation during hardening.
Quenching media
- Air blast/vacuum
- Martempering bath. Temperature 200–250°C (390–480°F) for max. 15 minutes, then
cooling in air
- Warm oil
Note:Temper the tool as soon as its tempera- ture reaches 50–70°C (120–160°F).
