steel - Nouvelle page 1 - Free
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MMPDS-01<br />
31 January 2003<br />
Table 2.3.1.0(g 2 ). Design Mechanical and Physical Properties of Low-Alloy Steels<br />
Alloy ..............<br />
4330V<br />
See <strong>steel</strong>s listed in Table 2.3.0.2 for the<br />
applicable strength levels<br />
Specification ........ AMS 6427 See Tables 2.3.1.0(a) and (b)<br />
Form...............<br />
Condition ...........<br />
Thickness or diameter,<br />
in. .................<br />
Basis...............<br />
# 2.5<br />
All wrought forms<br />
Quenched and tempered a<br />
d<br />
b<br />
c<br />
Mechanical Properties:<br />
F tu , ksi ............<br />
F ty , ksi ............<br />
F cy , ksi ............<br />
F su , ksi ............<br />
F bru , ksi:<br />
(e/D = 1.5)........<br />
(e/D = 2.0)........<br />
F bry , ksi:<br />
(e/D = 1.5)........<br />
(e/D = 2.0)........<br />
220<br />
185<br />
193<br />
132<br />
297<br />
385<br />
267<br />
294<br />
125<br />
100<br />
109<br />
75<br />
209<br />
251<br />
146<br />
175<br />
140<br />
120<br />
131<br />
84<br />
209<br />
273<br />
173<br />
203<br />
150<br />
132<br />
145<br />
90<br />
219<br />
287<br />
189<br />
218<br />
160<br />
142<br />
154<br />
96<br />
230<br />
300<br />
202<br />
231<br />
180<br />
163<br />
173<br />
108<br />
250<br />
326<br />
230<br />
256<br />
200<br />
176<br />
181<br />
120<br />
272<br />
355<br />
255<br />
280<br />
e, percent:<br />
L ...............<br />
LT ..............<br />
10<br />
5 a See Table 2.3.1.0(e)<br />
E, 10 3 ksi ..........<br />
E c , 10 3 ksi .........<br />
G, 10 3 ksi..........<br />
µ ................<br />
29.0<br />
29.0<br />
11.0<br />
0.32<br />
Physical Properties:<br />
ω, lb/in. 3 ..........<br />
C, K, and α ........<br />
0.283<br />
See Figure 2.3.1.0<br />
a Design values are applicable only to parts for which the indicated F tu has been substantiated by adequate quality control<br />
testing.<br />
b For F tu # 180 ksi, thickness # 0.50 in. for AISI 4130 and 8630; # 0.80 in. for AISI 8735, 4135, and 8740; # 1.00 in. for AISI<br />
4140; # 1.70 in. for AISI 4340, 4330V, 4335V, and Hy-Tuf [Quenched in molten salt at desired tempering temperature<br />
(martempering)]; # 2.50 in. for AISI 4340, 4330V, 4335V, and Hy-Tuf (Quenched in oil at a flow rate of 200 feet/min.); #<br />
3.50 in. for AISI 4340 (Quenched in water at a flow rate of 200 feet/min.); # 5.00 in. for D6AC (Quenched in oil at a flow<br />
rate of 200 feet/min.)<br />
c For F tu = 200 ksi AISI 4130, 8630, 4135, 8740 not available; thickness # 0.80 in. for AISI 8740; # 1.00 in. for AISI 4140; #<br />
1.70 in. for AISI 4340, 4330V, 4335V, and Hy-Tuf [Quenched in molten salt at desired tempering temperature<br />
(martempering)]; # 2.50 in. for AISI 4340, 4330V, 4335V, and Hy-Tuf (Quenched in oil at a flow rate of 200 feet/min.); #<br />
3.50 in. for AISI 4340 (Quenched in water at a flow rate of 200 feet/min.); # 5.00 in. for D6AC (Quenched in oil at a flow<br />
rate of 200 feet/min.)<br />
d There is no statistical basis (T 99 or T 90 ) or specification basis (S) to support the mechanical property values in this table. See<br />
Heat Treatment in Section 2.3.0.2.<br />
2-25
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