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Bohler-Uddeholm BÖHLER M303 EXTRA Plastic Mold Steel

Category Metal , Ferrous Metal , Tool Steel , Mold Steel
Manufacturer Bohler-Uddeholm
Trade Name BÖHLER
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Bohler-Uddeholm BÖHLER M303 EXTRA Plastic Mold Steel.pdf
Price EMAIL US    sales@lookpolymers.com
Material Notes:
BOHLER M303 EXTRA is a stainless martensitic chromium steel, offering excellent toughness, corrosion and wear resistance. It is characterized by improved machinability and polishability. BOHLER M303 EXTRA was developed for improved homogeneity over DIN 1.2316 by reducing delta ferrite in the matrix, ensuring excellent usage properties.ApplicationsMolds for chemically aggressive plasticsMolds for household appliancesVinyl Extrusion toolsMolds for fittings
Physical Properties Metric English Comments
Density 7.70 g/cc
0.278 lb/in³
7.60 g/cc

@Temperature 400 °C
 0.275 lb/in³

@Temperature 752 °F
7.60 g/cc

@Temperature 500 °C
 0.275 lb/in³

@Temperature 932 °F
7.60 g/cc

@Temperature 600 °C
 0.275 lb/in³

@Temperature 1110 °F
7.70 g/cc

@Temperature 100 °C
 0.278 lb/in³

@Temperature 212 °F
7.70 g/cc

@Temperature 200 °C
 0.278 lb/in³

@Temperature 392 °F
7.70 g/cc

@Temperature 300 °C
 0.278 lb/in³

@Temperature 572 °F
Mechanical Properties Metric English Comments
Hardness, Brinell 290 - 330
290 - 330
as supplied; hardened and tempered
Hardness, Rockwell C 53
53
hardening at 1020°C; without tempering
Modulus of Elasticity 168 GPa

@Temperature 600 °C
 24400 ksi

@Temperature 1110 °F
181 GPa

@Temperature 500 °C
 26300 ksi

@Temperature 932 °F
191 GPa

@Temperature 400 °C
 27700 ksi

@Temperature 752 °F
200 GPa

@Temperature 300 °C
 29000 ksi

@Temperature 572 °F
207 GPa

@Temperature 200 °C
 30000 ksi

@Temperature 392 °F
214 GPa

@Temperature 100 °C
 31000 ksi

@Temperature 212 °F
218 GPa

@Temperature 20.0 °C
 31600 ksi

@Temperature 68.0 °F
Thermal Properties Metric English Comments
CTE, linear 10.5 µm/m-°C

@Temperature 20.0 - 100 °C
 5.83 µin/in-°F

@Temperature 68.0 - 212 °F
10.8 µm/m-°C

@Temperature 20.0 - 200 °C
 6.00 µin/in-°F

@Temperature 68.0 - 392 °F
11.1 µm/m-°C

@Temperature 20.0 - 300 °C
 6.17 µin/in-°F

@Temperature 68.0 - 572 °F
11.4 µm/m-°C

@Temperature 20.0 - 400 °C
 6.33 µin/in-°F

@Temperature 68.0 - 752 °F
11.7 µm/m-°C

@Temperature 20.0 - 500 °C
 6.50 µin/in-°F

@Temperature 68.0 - 932 °F
12.1 µm/m-°C

@Temperature 20.0 - 600 °C
 6.72 µin/in-°F

@Temperature 68.0 - 1110 °F
Specific Heat Capacity 0.460 J/g-°C

@Temperature 20.0 °C
 0.110 BTU/lb-°F

@Temperature 68.0 °F
0.484 J/g-°C

@Temperature 100 °C
 0.116 BTU/lb-°F

@Temperature 212 °F
0.529 J/g-°C

@Temperature 200 °C
 0.126 BTU/lb-°F

@Temperature 392 °F
0.564 J/g-°C

@Temperature 300 °C
 0.135 BTU/lb-°F

@Temperature 572 °F
0.615 J/g-°C

@Temperature 400 °C
 0.147 BTU/lb-°F

@Temperature 752 °F
0.694 J/g-°C

@Temperature 500 °C
 0.166 BTU/lb-°F

@Temperature 932 °F
0.795 J/g-°C

@Temperature 600 °C
 0.190 BTU/lb-°F

@Temperature 1110 °F
Component Elements Properties Metric English Comments
Carbon, C 0.27 %
0.27 %
Chromium, Cr 14.5 %
14.5 %
Iron, Fe 82.4 %
82.4 %
As Balance
Manganese, Mn 0.65 %
0.65 %
Molybdenum, Mo 1.0 %
1.0 %
Nickel, Ni 0.85 %
0.85 %
Silicon, Si 0.30 %
0.30 %
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