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ASTM A148 A148M for High
Strength Steel Castings for Structural Industry
ASTM A148 is the specification for
carbon steel, alloy steel, and stainless steel castings, the grades
include 550-270, 80-40, 550-345, 80-50, 620-415, 90-60, 725-585,
105-85, 795-655, 115-95, 895-795, 130-115, 930-860, 135-125,
1305-930, 150-135, 1105-1000, 160-145, 1140-1035, 165-150 etc.
The grades of steel castings are covered and shall conform to the
required chemical composition for sulfur and phosphorus. A tension
test shall be performed and shall conform to the required tensile
strength, yield point, and elongation. The notch bar impact
properties shall also be determined by testing one set of three
Charpy V-notch impact specimens.
|
Steel Grade |
Old Steel Grade |
Chemical Components
(%) |
Physical Properties
(Min) |
|
P ≤ |
S ≤ |
σb /MPa |
σs / Mpa |
δ (%) |
ψ (%) |
|
550-270 |
80-40 |
0.05 |
0.06 |
550 |
275 |
18 |
30 |
|
550-345 |
80-50 |
0.05 |
0.06 |
550 |
345 |
12 |
35 |
|
620-415 |
90-60 |
0.05 |
0.06 |
620 |
415 |
20 |
40 |
|
725-585 |
105-85 |
0.05 |
0.06 |
725 |
585 |
17 |
35 |
|
795-655 |
115-95 |
0.05 |
0.06 |
795 |
655 |
14 |
30 |
|
895-795 |
130-115 |
0.05 |
0.06 |
895 |
795 |
11 |
25 |
|
930-860 |
135-125 |
0.05 |
0.06 |
930 |
860 |
9 |
22 |
|
1305-930 |
150-135 |
0.05 |
0.06 |
1035 |
930 |
7 |
18 |
|
1105-1000 |
160-145 |
0.05 |
0.06 |
1105 |
1000 |
6 |
12 |
|
1140-1035 |
165-150 |
0.020 |
0.020 |
1140 |
1035 |
5 |
20 |
|
1140-1035L |
165-150L |
0.020 |
0.020 |
1140 |
1035 |
5 |
20 |
|
1450-1240 |
210-180 |
0.020 |
0.020 |
1450 |
1240 |
4 |
15 |
|
1450-1240L |
210-180L |
0.020 |
0.020 |
1450 |
1240 |
4 |
15 |
|
1795-1450 |
260-210 |
0.020 |
0.020 |
1795 |
1450 |
3 |
6 |
|
1795-1450L |
260-210L |
0.020 |
0.020 |
1795 |
1450 |
3 |
6 |
Dandong Foundry supplied various cast
steel casting parts in this standards. This is a very common
standard for Chinese steel foundries. The production process
including sand casting, and precision casting processes, such as
lost wax investment casting, and silica sol investment casting
process.
 
 
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