Buderus Special Steel 2709 l Buderus Special Steel 2709
Buderus Special Steel 2709 l Buderus Special Steel 2709
Buderus Special Steel 2709 l Buderus Special Steel 2709
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
l <strong>Buderus</strong> <strong>Special</strong> <strong>Steel</strong> <strong>2709</strong><br />
C Si Mn P S Cr Ni Mo Co Ti<br />
Typical analysis 0.03 18.0 5.00 9.50 1.00<br />
Chemical composition � � � � � � 17.0– 4.50– 8.50– 0.80–<br />
as per SEL<br />
0.03 0.10 0.15 0.010 0.010 0.25 19.0 5.20 10.00 1.20<br />
Register of European<br />
<strong>Steel</strong>s (SEL)<br />
X 3 NiCoMoTi 18-9-5<br />
AFNOR Z 2 NKD 18-09<br />
AISI Maraging 300<br />
Figures in % by mass<br />
Characteristics<br />
High tensile special maraging steel.<br />
Very high longitudinal and transverse toughness, good compressive strength, extremely simple heat<br />
treatment, minimal distortion, very good polishability, nitridable.<br />
Applications<br />
Die-casting moulds, especially inserts, cores and ejectors.<br />
Plastic injection moulds; part inserts.<br />
Delivered condition<br />
Solution annealed to approx. 300 HB<br />
Physical properties (reference values)<br />
Thermal expansion<br />
coeffi cient (10 –6 /K)<br />
Thermal conductivity<br />
(W/mK)<br />
Young’s modulus<br />
(GPa)<br />
20–100 °C<br />
10.0<br />
20 °C<br />
12.0<br />
20 °C<br />
198<br />
20–250 °C<br />
16.0<br />
250 °C<br />
15.0<br />
250 °C<br />
180<br />
20–500 °C<br />
17.3<br />
500 °C<br />
19.0<br />
500 °C<br />
160<br />
<strong>Buderus</strong> Edelstahl GmbH l <strong>Steel</strong> Bar Sales l <strong>Buderus</strong>straße 25 l D-35576 Wetzlar<br />
Telephone +49 (0) 64 41-374 2468 l Fax +49 (0) 64 41-374 2784 l info@buderus-steel.com l www.buderus-steel.com<br />
<strong>Buderus</strong> <strong>Special</strong> <strong>Steel</strong> <strong>2709</strong>
l <strong>2709</strong><br />
Heat treatment<br />
Soft annealing Temperature: 850 °C<br />
Solution annealing Duration: 1 hour per 50 mm wall thickness<br />
Cooling: Furnace<br />
Precipitation hardening Temperature: 480 °C<br />
Duration: 4 hours<br />
Working hardness 50–54 HRC<br />
Age hardening curve<br />
Hardness in HRC<br />
62<br />
60<br />
58<br />
56<br />
54<br />
52<br />
50<br />
48<br />
46<br />
44<br />
42<br />
40<br />
38<br />
36<br />
34<br />
32<br />
Average values on samples dia. 25 x 50 mm long<br />
HB converted from HRC<br />
0 100 200 300 400 500 600 700 800 303<br />
(461)<br />
436<br />
413<br />
392<br />
373<br />
354<br />
337<br />
319<br />
Tempering temperature in °C<br />
HB<br />
Legal notice. <strong>Buderus</strong> Edelstahl GmbH has taken every possible care in compiling this information; the data is nevertheless subject to intervening changes. <strong>Buderus</strong> Edelstahl GmbH disclaims all liability and any warranty as regards the accuracy, currency,<br />
correctness and completeness of the information provided. The information provided is merely descriptive and indicative in nature, and binding only when expressly agreed as undertakings in a contract made with <strong>Buderus</strong> Edelstahl GmbH. <strong>Buderus</strong> Edelstahl<br />
GmbH moreover reserves the right to make changes at any time without prior notice. <strong>Buderus</strong> Edelstahl GmbH disclaims all liability for loss or damage of any kind, including consequential loss, arising in connection with use of the information provided.<br />
This publication supersedes all previous ones. © <strong>Buderus</strong> Edelstahl GmbH, Wetzlar, 07/2010
Change language