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Assab Steels 618 Plastic Mold Material
| Category | Metal , Ferrous Metal , Alloy Steel , Chrome-moly Steel |
| Manufacturer | Assab Steels |
| Trade Name | |
| Port | Ningbo port,China |
| Trade Terms | FOB, CFR, CIF |
| Payment Terms | L/C, T/T, Western Union |
| Download PDF | Assab Steels 618 Plastic Mold Material.pdf  |
| Price | EMAIL US sales@lookpolymers.com |
Material Notes:
ASSAB 618 is a vacuum-degassed Cr-Ni-Mo-alloy steel which is supplied in the hardened and tempered condition. ASSAB 618 is manufactured to consistently high quality standards with a controlled sulfur content (max. 0.015%) giving a steel with the following characteristics: Good polishing and photo-etching propertiesGood machinabilityHigh purity and good homogeneityUniform hardness in all dimensionsApplications: Injection moulds for thermoplasticsExtrusion dies for thermoplasticsBlow mouldsForming tools, press-brake dies (possibly flame hardened or nitrided)Machine or structural components, shafts.AISI P20 modified, W.-Nr. 1.2738
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 7.81 g/cc | 0.282 lb/in³ | |
| 7.75 g/cc @Temperature 200 °C |
0.280 lb/in³ @Temperature 392 °F |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Hardness, Brinell | 290 - 330 | 290 - 330 | hardness supplied. |
| 325 | 325 | tempering at 600°C | |
| 450 | 450 | tempering at 400°C | |
| 500 | 500 | tempering at 200°C | |
| Tensile Strength, Ultimate | 979 MPa @Thickness 25.4 mm, Temperature 200 °C |
142000 psi @Thickness 1.00 in, Temperature 392 °F |
R<sub>m</sub>. Bar. 310 HB |
| 1080 MPa @Diameter 25.4 mm |
156000 psi @Diameter 1.00 in |
R<sub>m</sub>. Bar. 310 HB | |
| Tensile Strength, Yield | 827 MPa @Diameter 25.4 mm |
120000 psi @Diameter 1.00 in |
R<sub>p</sub>0.2. bar. 310 HB |
| 986 MPa @Diameter 25.4 mm |
143000 psi @Diameter 1.00 in |
R<sub>p</sub>0.2. bar. 310 HB | |
| Elongation at Break | 14 % @Thickness 25.4 mm |
14 % @Thickness 1.00 in |
bar; 310 HB |
| 15 % @Thickness 25.4 mm, Temperature 200 °C |
15 % @Thickness 1.00 in, Temperature 392 °F |
bar; 310 HB | |
| Reduction of Area | 49 % @Thickness 25.4 mm, Temperature 20.0 °C |
49 % @Thickness 1.00 in, Temperature 68.0 °F |
bar; 310 HB |
| 51 % @Thickness 25.4 mm, Temperature 200 °C |
51 % @Thickness 1.00 in, Temperature 392 °F |
bar; 310 HB | |
| Modulus of Elasticity | 205 GPa | 29700 ksi | |
| 200 GPa @Temperature 200 °C |
29000 ksi @Temperature 392 °F |
||
| Impact Test | 25.0 J @Diameter 25.4 mm, Temperature 20.0 °C |
18.4 ft-lb @Diameter 1.00 in, Temperature 68.0 °F |
310 HB |
| 42.0 J @Diameter 25.4 mm, Temperature 100 °C |
31.0 ft-lb @Diameter 1.00 in, Temperature 212 °F |
bar. 310 HB. | |
| 50.0 J @Diameter 25.4 mm, Temperature 150 °C |
36.9 ft-lb @Diameter 1.00 in, Temperature 302 °F |
310 HB. |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| CTE, linear | 12.7 µm/m-°C @Temperature 20.0 - 200 °C |
7.06 µin/in-°F @Temperature 68.0 - 392 °F |
|
| Specific Heat Capacity | 0.460 J/g-°C @Temperature 20.0 °C |
0.110 BTU/lb-°F @Temperature 68.0 °F |
|
| Thermal Conductivity | 29.1 W/m-K @Temperature 20.0 °C |
202 BTU-in/hr-ft²-°F @Temperature 68.0 °F |
|
| 29.5 W/m-K @Temperature 200 °C |
205 BTU-in/hr-ft²-°F @Temperature 392 °F |
| Component Elements Properties | Metric | English | Comments |
|---|---|---|---|
| Carbon, C | 0.37 % | 0.37 % | |
| Chromium, Cr | 2.0 % | 2.0 % | |
| Iron, Fe | 94.73 % | 94.73 % | |
| Manganese, Mn | 1.4 % | 1.4 % | |
| Molybdenum, Mo | 0.20 % | 0.20 % | |
| Nickel, Ni | 1.0 % | 1.0 % | |
| Silicon, Si | 0.30 % | 0.30 % |
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