Similar grades: SKD11, DIN1.2379.
Shape: Round, Flat, Square.
Size range: Round 80-600mm, Flat thickness:40-350mm, width:100-1000mm, length:2m-6m
Steelmaking Process: EF, EF/EAF+LF+VD, EF/EAF+ESR
Delivery condition: Annealed
Surface condition:Black, Peeled, Rough Machined, Ground
Features:1:Competitive price
2 Immediate delivery
3.Premium quality
4.Reliable service
Chemical composition :
| Type |
C |
Mn |
S |
P |
Si |
Cr |
V |
| UNS:T30402 |
Min |
Max |
Min |
Max |
Max |
Max |
Min |
Max |
Min |
Max |
Min |
Max |
| D2 |
1.40 |
1.60 |
0.10 |
0.60 |
0.03 |
0.30 |
0.10 |
0.60 |
11.00 |
13.00 |
0.50 |
1.10 |
The chemical composition thus deter-mined shall not vary from the limits specied in ASTM61-2008
D2 tool steel Materials and Manufacture:ELECTRIC ARC AND VACUUMDEGASSING
D2 tool steel Hardness requirement: 255 HB
In accordance with the latest issue of Test Methods and Denitions A370
D2 tool steel Macrostructure:
In accordance with the latest issue of PracticeA561, free of excessive porosity, segregation, slag, dirt or other nonmetallic inclusions ,pipe, checks, cracks, and other injurious defects.
D2 tool steel Decarburization:
In accordance with the latest issue of Guide E3
Free of scale and decarburization.
D2 tool steel Permissible Variations for Dimensions:
| Thickness(mm) |
Width(mm) |
thickness tolerance(mm) |
width tolerance(mm) |
| 8-90 |
30-610 |
+1.0/-0.0 |
+5.0/-0.0 |
According to different shape with the ASTM681-2008
D2 tool steel Ultrasonic Quality
Material shall be ultrasonic ally tested at appropriate stages of the manufacture to ensure the quality, when and as agreed upon between seller and purchaser.
D2 tool steel Cleanliness: with the latest issue of Test Methods E45. The permissible limits shall be agreed upon between seller and purchaser.
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