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MMPDS-01 31 January 2003 Table 2.3.0.2. Maximum Round Diameters for Low-Alloy Steel Bars (Through Hardening to at Least 90 Percent Martensite at Center) Maximum Diameter of Round or Equivalent Round, in. a F tu , ksi 0.5 0.8 1.0 1.7 2.5 3.5 5.0 270 & 280 . . . . . . . . . . . . . . . . . . 300M c 260 . . . . . . . . . AISI 4340 b AISI 4340 c AISI 4340 d . . . 220 . . . . . . . . . AMS Grades b,e AMS Grades c,e D6AC b D6AC c 200 . . . AISI 8740 AISI 4140 AISI 4340 b AMS Grades b,e AISI 4340 c AMS Grades c,e AISI 4340 d D6AC c #180 AISI 4130 and 8630 AISI 8735 4135 and 8740 AISI 4140 AISI 4340 b AMS Grades b,e AISI 4340 c AMS Grades c,e AISI 4340 d D6AC b D6AC c a This table indicates the maximum diameters to which these steels may be through hardened consistently by quenching as indicated. Any steels in this table may be used at diameters less than those indicated. The use of steels at diameters greater than those indicated should be based on hardenability data for specific heats of steel. b Quenched in molten salt at desired tempering temperature (“martempering”). c Quenched in oil at a flow rate of 200 feet per minute. d Quenched in water at a flow rate of 200 feet per minute. e 4330V, 4335V, and Hy-Tuf. 2-12
MMPDS-01 31 January 2003 Figure 2.3.0.2. Correlation between significant dimensions of common shapes other than round, and the diameters of round bars. 2-13
Page 1 and 2: MMPDS-01 31 January 2003 CHAPTER 2
Page 3 and 4: MMPDS-01 31 January 2003 and above
Page 5 and 6: MMPDS-01 31 January 2003 2.1.2.1.4
Page 7 and 8: MMPDS-01 31 January 2003 2.2.0.3 En
Page 9 and 10: MMPDS-01 31 January 2003 9 α, - Be
Page 11: MMPDS-01 31 January 2003 Heat Treat
Page 15 and 16: MMPDS-01 31 January 2003 2.3.1 SPEC
Page 17 and 18: MMPDS-01 31 January 2003 Table 2.3.
Page 27 and 28: MMPDS-01 31 January 2003 200 180 St
Page 29 and 30: MMPDS-01 31 January 2003 120 110 E
Page 31 and 32: MMPDS-01 31 January 2003 Figure 2.3
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Page 39 and 40: MMPDS-01 31 January 2003 200 200-ks
Page 43 and 44: MMPDS-01 31 January 2003 300 B = 2
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MMPDS-01 31 January 2003 Figure 2.3
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MMPDS-01 31 January 2003 Figure 2.3
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MMPDS-01 31 January 2003 Table 2.4.
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MMPDS-01 31 January 2003 100 Streng
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. MMPDS-01 31 January 2003 100 80 P
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MMPDS-01 31 January 2003 100 80 F s
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MMPDS-01 31 January 2003 2.4.3 9Ni-
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MMPDS-01 31 January 2003 9 8 α - B
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MMPDS-01 31 January 2003 6WUHQJWK
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MMPDS-01 31 January 2003 200 180 Mo
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MMPDS-01 31 January 2003 /RQJLWXGL
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MMPDS-01 31 January 2003 6KRUW WUD
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