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EDRO #3 Prehardened Mold Quality P20 Alloy Steel

Category Metal , Ferrous Metal , Alloy Steel , Chrome-moly Steel
Manufacturer EDRO
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF EDRO #3 Prehardened Mold Quality P20 Alloy Steel.pdf
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Material Notes:
EDRO #3™ is a vacuum-degassed, ladle refined, Cr-Ni-Mo- alloyed steel which is supplied in the hardened and tempered condition. EDRO #3™ is manufactured to consistently high quality standards with a very low sulfur content, giving a steel with the following characteristics: excellent polishing and photo-etching properties, good machinability, high purity and good homogeneity, and uniform hardness in all dimensions. Applications: injection molds for thermo-plastics, extrusion dies for thermo-plastics, blow molds, forming tools, press-brake dies, structural components, shaftsInformation provided by EDRO
Physical Properties Metric English Comments
Density 7.67 g/cc

@Temperature 399 °C
0.277 lb/in³

@Temperature 750 °F
Hardened and tempered to 310 HB
7.75 g/cc

@Temperature 199 °C
0.280 lb/in³

@Temperature 390 °F
Hardened and tempered to 310 HB
7.81 g/cc

@Temperature 20.0 °C
0.282 lb/in³

@Temperature 68.0 °F
Hardened and tempered to 310 HB
Mechanical Properties Metric English Comments
Hardness, Brinell 277 - 332
277 - 332
as supplied
340

@Treatment Temp. 650 °C
340

@Treatment Temp. 1200 °F
Tempered for 2 hr
380

@Treatment Temp. 600 °C
380

@Treatment Temp. 1110 °F
Tempered for 2 hr
Hardness, Rockwell C 45

@Treatment Temp. 500 °C
45

@Treatment Temp. 932 °F
Tempered for 2 hr
47

@Treatment Temp. 400 °C
47

@Treatment Temp. 752 °F
Tempered for 2 hr
49

@Treatment Temp. 300 °C
49

@Treatment Temp. 572 °F
Tempered for 2 hr
52

@Treatment Temp. 180 °C
52

@Treatment Temp. 356 °F
Tempered for 2 hr
52

@Treatment Temp. 200 °C
52

@Treatment Temp. 392 °F
Tempered for 2 hr
55

@Treatment Temp. 300 °C
55

@Treatment Temp. 572 °F
Hardened for 2 hr, then Tempered
59

@Treatment Temp. 200 °C
59

@Treatment Temp. 392 °F
Hardened for 2 hr, then Tempered
60

@Treatment Temp. 180 °C
60

@Treatment Temp. 356 °F
Hardened for 2 hr, then Tempered
Hardness, Vickers 650

@Treatment Temp. 525 °C
650

@Treatment Temp. 977 °F
Nitriding in ammonia gas
700

@Treatment Temp. 570 °C
700

@Treatment Temp. 1060 °F
Tufftriding (Tenifer process)
Tensile Strength, Ultimate 793 MPa

@Temperature 399 °C
115000 psi

@Temperature 750 °F
Round bar 1" diameter, 310 HB
951 MPa

@Temperature 199 °C
138000 psi

@Temperature 390 °F
Round bar 1" diameter, 310 HB
1010 MPa

@Temperature 20.0 °C
146000 psi

@Temperature 68.0 °F
Round bar 1" diameter, 310 HB
Tensile Strength, Yield 627 MPa

@Temperature 399 °C
91000 psi

@Temperature 750 °F
Round bar 1" diameter, 310 HB
752 MPa

@Temperature 199 °C
109000 psi

@Temperature 390 °F
Round bar 1" diameter, 310 HB
800 MPa

@Temperature 20.0 °C
116000 psi

@Temperature 68.0 °F
Round bar 1" diameter, 310 HB
Elongation at Yield 20 %

@Temperature 20.0 °C
20 %

@Temperature 68.0 °F
in 2"
22 %

@Temperature 199 °C
22 %

@Temperature 390 °F
in 2"
25 %

@Temperature 399 °C
25 %

@Temperature 750 °F
in 2"
Reduction of Area 60 %

@Temperature 20.0 °C
60 %

@Temperature 68.0 °F
63 %

@Temperature 199 °C
63 %

@Temperature 390 °F
65 %

@Temperature 399 °C
65 %

@Temperature 750 °F
Modulus of Elasticity 185 GPa

@Temperature 399 °C
26800 ksi

@Temperature 750 °F
200 GPa

@Temperature 199 °C
29000 ksi

@Temperature 390 °F
205 GPa

@Temperature 20.0 °C
29700 ksi

@Temperature 68.0 °F
Charpy Impact 50.2 J

@Temperature 20.0 °C
37.0 ft-lb

@Temperature 68.0 °F
Round bar 1" diameter, 310 HB
55.6 J

@Temperature 199 °C
41.0 ft-lb

@Temperature 390 °F
Round bar 1" diameter, 310 HB
65.1 J

@Temperature 399 °C
48.0 ft-lb

@Temperature 750 °F
Round bar 1" diameter, 310 HB
Thermal Properties Metric English Comments
CTE, linear 12.6 µm/m-°C

@Temperature 20.0 - 199 °C
7.00 µin/in-°F

@Temperature 68.0 - 390 °F
13.5 µm/m-°C

@Temperature 20.0 - 399 °C
7.50 µin/in-°F

@Temperature 68.0 - 750 °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 199 °C
205 BTU-in/hr-ft²-°F

@Temperature 390 °F
31.1 W/m-K

@Temperature 399 °C
216 BTU-in/hr-ft²-°F

@Temperature 750 °F
Component Elements Properties Metric English Comments
Carbon, C 0.31 %
0.31 %
Chromium, Cr 1.2 %
1.2 %
Iron, Fe 96.122 %
96.122 %
As Balance
Manganese, Mn 0.75 %
0.75 %
Molybdenum, Mo 0.41 %
0.41 %
Nickel, Ni 0.80 %
0.80 %
Silicon, Si 0.40 %
0.40 %
Sulfur, S 0.0080 %
0.0080 %
Descriptive Properties Value Comments
Color Code Orange
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