|
ASTM A27 / A27M-2000
for Steel Casting
American
ASTM standard and UNS system of carbon cast steel suitable for general purpose.
This standard is useful for
designers and steel foundries to
inspect and control the physical
properties and chemical components
for
steel castings.
a. Steel number and chemical analysis of carbon cast steel
|
Steel number |
C |
Si |
Mn |
P
≤ |
S
≤ |
|
ASTM |
UNS |
|
Grade N1 |
J02500 |
≤0.25 |
≤0.80 |
≤0.75 |
0.05 |
0.06 |
|
Grade N2 |
J03500 |
≤0.35 |
≤0.80 |
≤0.60 |
0.05 |
0.06 |
|
Grade U-205(60-30) |
J02500 |
≤0.25 |
≤0.80 |
≤0.75 |
0.05 |
0.06 |
|
Grade 415-205(60-30) |
J03000 |
≤0.30 |
≤0.80 |
≤0.60 |
0.05 |
0.06 |
|
Grade 450-240(63-35) |
J03001 |
≤0.30 |
≤0.80 |
≤0.70 |
0.05 |
0.06 |
|
Grade 485-250(70-35) |
J03501 |
≤0.35 |
≤0.80 |
≤0.70 |
0.05 |
0.06 |
|
Grade 485-275(70-40) |
J02501 |
≤0.25 |
≤0.80 |
≤1.20 |
0.05 |
0.06 |
b. Mechanical properties of carbon cast steel
|
Steel number |
Mechanical properties (no less than) |
|
ASTM |
UNS |
σb
/MPa |
σs
/ Mpa |
δ
(%) |
ψ
(%) |
|
Grade U-205(60-30) |
J02500 |
415 |
205 |
22 |
30 |
|
Grade 415-205(60-30) |
J03000 |
415 |
205 |
24 |
35 |
|
Grade 450-240(63-35) |
J03001 |
450 |
240 |
24 |
35 |
|
Grade 485-250(70-35) |
J03501 |
485 |
250 |
22 |
30 |
|
Grade 485-275(70-40) |
J02501 |
485 |
275 |
22 |
30 |
Home |
More Articles |
