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Chapter 4
Carbon & Alloy Steel - Forgings
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MECHANICAL PROPERTIES
OF CARBON STEEL FORGINGS
|
|
Tensile Strength |
Yield Strength |
|
|
Hardness |
|
| ASTM Gr/Cl |
ksi |
MPa |
ksi |
MPa |
% El |
% RA |
HB |
ft-lb (J) 2 Temp F (C)a |
| A 105 |
70 |
485 |
36 |
250 |
30 |
30 |
187 max |
--- |
| A 181 cl 60 |
60 |
415 |
30 |
205 |
22 |
35 |
|
--- |
| A 181 cl 70 |
70 |
485 |
36 |
250 |
18 |
24 |
|
--- |
| A 266 cl 1 |
60-85 |
415-585 |
30 |
205 |
23 |
38 |
121-170c |
--- |
| A 266 cl 2,
4 |
70-95 |
485-655 |
36 |
250 |
20 |
33 |
137-197c |
--- |
|
A 266 cl 3 |
75-100 |
515-690 |
37.5 |
260 |
19 |
30 |
156-207c |
--- |
| A 350 gr
LF1 |
60-85 |
415-585 |
30 |
205 |
25 |
38 |
197 max. |
13 (18) / 10 (14) @ -20 (-28.9) |
| A 350 LF2 |
70-95 |
485-655 |
36 |
250 |
22 |
30 |
197 max |
15 (20) / 12 (16) @ -50 (-45.6) |
|
A 694 gr F42 |
60 |
415 |
42 |
290 |
20 |
--- |
|
--- |
| A 694 gr
F46 |
60 |
415 |
46 |
315 |
20 |
--- |
|
--- |
| A 694 gr
F48 |
62 |
425 |
48 |
330 |
20 |
--- |
|
--- |
| A 694 gr
F50 |
64 |
440 |
50 |
345 |
20 |
--- |
|
--- |
| A 694 gr
F52 |
66 |
455 |
52 |
360 |
20 |
--- |
|
--- |
| A 694 gr
F56 |
68 |
470 |
56 |
385 |
20 |
--- |
|
--- |
| A 694 gr
F60 |
75 |
515 |
60 |
415 |
20 |
--- |
|
--- |
| A 694 gr
F65 |
77 |
530 |
65 |
450 |
20 |
--- |
|
--- |
| A 707 cl 1 |
60 |
415 |
42 |
290 |
22 |
40 |
149-207 |
30 (41) / 24 (33)b |
| A 707 cl 2 |
66 |
455 |
52 |
360 |
22 |
40 |
149-217 |
40 (54) / 32 (43)b |
| A 707 cl 3 |
75 |
515 |
60 |
415 |
20 |
40 |
156-235 |
50 (68) / 40 (54)b |
| A 707 cl 4 |
90 |
620 |
75 |
515 |
20 |
40 |
179-265 |
50 (68) /40 (54)b |
|
a. Energy value ft-lb (J) minimum value for two specimens and minimum
average of three specimens, followed by energy value ft-lb (J) |
|
minimum for single specimen; all specimens full size 10 mm X 10 mm. |
|
b. Impact test temperature for grade L1 is -20 F (-29 C) and for grade L2 is
-50 F (-46 C). |
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c. Supplementary requirement only, not in standard specification. |
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Single value are minimum, unless otherwise specified. |
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