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Estimated Mechanical Properties and Machinability Ratings of Re-Sulfurized Alloy Steel Bars(a)

ALLOY STEELS -- HEAT CHEMICAL RANGES AND LIMITS

Chemical Composition Limits - percent
AISI
or
SAE
C Mn P S Si Ni Cr Mo
  1330 .28 - .33 1.60 - 1.90 .035 .040 .15 - .35 -- -- --
  1335 .33 - .38 1.60 - 1.90 .035 .040 .15 - .35 -- -- --
  1340 .38 - .43 1.60 - 1.90 .035 .040 .15 - .35 -- -- --
  1345 .43 - .48 1.60 - 1.90 .035 .040 .15 - .35 -- -- --
  4012 .09 - .14 .75 - 1.00 .035 .040 .15 - .35 -- -- .15 - .25
  4023 .20 - .25 .70 - .90 .035 .040 .15 - .35 -- -- .20 - .30
  4024 .20 - .25 .70 - .90 .035 .035 - .050 .15 - .35 -- -- .20 - .30
  4027 .25 - .30 .70 - .90 .035 .040 .15 - .35 -- -- .20 - .30
  4028 .25 - .30 .70 - .90 .035 .035 - .050 .15 - .35 -- -- .20 - .30
  4032 * .30 - .35 .70 - .90 .035 .040 .15 - .35 -- -- .20 - .30
  4037 .35 - .40 .70 - .90 .035 .040 .15 - .35 -- -- .20 - .30
  4042 * .40 - .45 .70 - .90 .035 .040 .15 - .35 -- -- .20 - .30
  4047 .45 - .50 .70 - .90 .035 .040 .15 - .35 -- -- .20 - .30
  4188 .18 - .23 .70 - .90 .035 .040 .15 - .35 -- .40 - .60 .08 - .15
  4120 * * .18 - .23 .90 - 1.20 .035 .040 .15 - .35 -- .40 - .60 .13 - .20
  4121 * * * .18 - .23 .75 - 1.00 .035 .040 .15 - .35 -- .45 - .65 .20 - .30
  4130 .28 - .33 .40 - .60 .035 .040 .15 - .35 -- .80 - 1.10 .15 - .25
  4135 * .33 - .38 .70 - .90 .035 .040 .15 - .35 -- .80 - 1.10 .15 - .25
  4137 .35 - .40 .70 - .90 .035 .040 .15 - .35 -- .80 - 1.10 .15 - .25
  4140 .38 - .43 .75 - 1.00 .035 .040 .15 - .35 -- .80 - 1.10 .15 - .25
  4142 .40 - .45 .75 - 1.00 .035 .040 .15 - .35 -- .80 - 1.10 .15 - .25
  4145 .43 - .48 .75 - 1.00 .035 .040 .15 - .35 -- .80 - 1.10 .15 - .25
* SAE Only
* * Formerly EX 15
* * * Formerly EX 24

See Notes at Bottom

Chemical Composition Limits - percent
AISI
or
SAE
C Mn P S Si Ni Cr Mo
  4147 .45 - .50 .75 - 1.00 .035 .040 .15 - .35 -- .80 - 1.10 .15 - .25
  4150 .48 - .53 .75 - 1.00 .035 .040 .15 - .35 -- .80 - 1.10 .15 - .25
  4161 * .56 - .64 .75 - 1.00 .035 .040 .15 - .35 -- .70 - .90 .25 - .35
  4320 .17 - .22 .45 - .65 .035 .040 .15 - .35 1.65 - 2.00 .40 - .60 .20 - .30
  4340 .38 - .43 .60 - .80 .035 .040 .15 - .35 1.65 - 2.01 .70 - .90 .20 - .30
  E4340 .38 - .43 .65 - .85 .035 .040 .15 - .35 1.65 - 2.01 .70 - .90 .20 - .30
  4419 .18 - .23 .45 - .65  .035 .040 .15 - .35 --   .45 - .60
  4422 * .20 - .25 .70 - .90 .035 .040 .15 - .35 --   .35 - .45
  4427 * .24 - .29 .70 - .90 .035 .040 .15 - .35 -- -- .35 - .45
  4615 .13 - .18 .45 - .65 .035 .040 .15 - .35 1.65 - 2.01 -- .20 - .30
  4620 .17 - .22 .45 - .65 .035 .040 .15 - .35 1.65 - 2.01 -- .20 - .30
  4621 .18 - .23 .70 - .90 .035 .040 .15 - .35 1.65 - 2.01 -- .20 - .30
  4626 .24 - .29 .45 - .65 .035 04 max .15 - .35 .70 - 1.00 -- .15 - .25
  4715 * * .13 - .18 .70 - .90 .035 .040 .15 - .35 .70 - 100 .45 - .65 .45 - .65
  4718 .16 - .21 .70 - .90 -- -- .15 - .35 .90 - 1.20 .65 - .55 .30 - .40
  4720 .17 - .22 .50 - .70 .035 .040 .15 - .35 .90 - 1.20 .35 - .55 .15 - .25
  4815 .13 - .18 .40 - .60 .035 .040 .15 - .35 3.25 - 3.75 -- .20 - .30
  4817 .15 - .20 .40 - .60 .035 .040 .15 - .35 3.25 - 3.75 -- .20 - .30
  4820 .18 - .23 .50 - .70 .035 .040 .15 - .35 3.25 - 3.75 -- .20 - .30
  5015 .12 - .17 .30 - .50 .035 .040 .15 - .35 -- .30 - .50 --
  50B40 * .38 - .43 .75 - 1.00 .035 .040 .15 - .35 -- .40 - .60 --

* SAE Only

* * Formerly EX 30

See Notes at Bottom

 

Chemical Composition Limits - percent
AISI
or
SAE
C Mn P S Si Ni Cr Mo
  50B44 .43 - .48 .75 - 1.00 .035 .040 .15 - .35 -- .40 - .60 --
  5046 * .43 - .48 .75 - 1.00 .035 .040 .15 - .35 -- .20 - .35 --
  50B46 .44 - .49 .75 - 1.00 .035 .040 .15 - .35 -- .20 - .35 --
  50B50 .48 - .53 .75 - 1.00 .035 .040 .15 - .35 -- .40 - .60 --
  5060 * .56 - .64 .75 - 1.00 .035 .040 .15 - .35 -- .40 - .60 --
  50B60 .56 - .64 .75 - 1.00 .035 .040 .15 - .35 -- .40 - .60 --
  5115 * .13 - .18 .70 - .90 .035 .040 .15 - .35 -- .70 - .90 --
  5120 .17 - .22 .70 - .90 .035 .040 .15 - .35 -- .70 - .90 --
  5130 .28 - .33 .70 - .90 .035 .040 .15 - .35 -- .80 - 1.10 --
  5132 .30 - .35 .60 - .80 .035 .040 .15 - .35 -- .75 - 1.00 --
  5135 .33 - .38 .60 - .80 .035 .040 .15 - .35 -- .80 - 1.05 --
  5140 .38 - .43 .70 - .90 .035 .040 .15 - .35 -- .70 - .90 --
  5145 .43 - .48 .70 - .90 .035 .040 .15 - .35 -- .70 - .90 --
  5147 .46 - .51 .70 - .95 .035 .040 .15 - .35 -- .85 - 1.15 --
  5150 .48 - .53 .70 - .90 .035 .040 .15 - .35 -- .70 - .90 --
  5155 .51 - .59 .70 - .90 .035 .040 .15 - .35 -- .70 - .90 --
  5160 .56 - .64 .75 - 1.00 .035 .040 .15 - .35 -- .70 - .90 --
  51B60 .56 - .64 .75 - 1.00 .035 .040 .15 - .35 -- .70 - .90 --
  E50100 * * .98 - 1.10 .25 - .45 .025 .025 .15 - .35 -- .40 - .60 --
  E51100 * * .98 - 1.10 .25 - .45 .025 .025 .15 - .35 -- .90 - 1.15 --
  E52100 * * .98 - 1.10 .25 - .45 .025 .025 .15 - .35 -- 1.30 - 1.60 --
  Mod 1 * * .90 - 1.05 .95 - 1.25 .025 .025 .50 - .70 -- .95 - 1.15 --
  Mod 2 * * .85 - 1.00 1.40 - 1.70 .025 .025 .60 - .80 -- 1.40 - 1.70 --
  6118 .16 - .21 .50 - .70 .035 .040 .15 - .35 -- .50 - .70 V-.10-.15

* SAE ONLY

See Notes at Bottom

 

Chemical Composition Limits - percent
AISI
or
SAE
C Mn P S Si Ni Cr Mo
  6150 .48 - .53 .70 - .90 .035 .040 .15 - .35 -- .80 - 1.10. V-.15 Min
  8115 .13 - .18 .70 - .90 .035 .040 .15 - .35 .20 - .40 .30 - .50 .08 - .15
  81B45 .43 - .48 .75 - 1.00 .035 .040 .15 - .35 .20 - .40 .35 - .55 .08 - .15
  8615 * .13 - .18 .70 - .90 .035 .040 .15 - .35 .40 - .70 .40 - .60 .15 - .25
  8617 .15 - .20 .70 - .90 .035 .040 .15 - .35 .40 - .70 .40 - .60 .15 - .25
  8620 .18 - .23 .70 - .90 .035 .040 .15 - .35 .40 - .70 .40 - .60 .15 - .25
  8622 .20 - .25 .70 - .90 .035 .040 .15 - .35 .40 - .70 .40 - .60 .15 - .25
  8625 .23 - .28 .70 - .90 .035 .040 .15 - .35 .40 - .70 .40 - .60 .15 - .25
  8627 .25 - .30 .70 - .90 .035 .040 .15 - .35 .40 - .70 .40 - .60 .15 - .25
  8630 .28 - .33 .70 - .90 .035 .040 .15 - .35 .40 - .70 .40 - .60 .15 - .25
  8637 .35 - .40 .75 - 1.00 .035 .040 .15 - .35 .40 - .70 .40 - .60 .15 - .25
  8640 .38 - .43 .75 - 1.00 .035 .040 .15 - .35 .40 - .70 .40 - .60 .15 - .25
  8642 .40 - .45 .75 - 1.00 .035 .040 .15 - .35 .40 - .70 .40 - .60 .15 - .25
  8645 .43 - .48 .75 - 1.00 .035 .040 .15 - .35 .40 - .70 .40 - .60 .15 - .25
  86B45 * .43 - .48 .75 - 1.00 .035 .040 .15 - .35 .40 - .70 .40 - .60 .15 - .25
  8650 .48 - .53 .75 - 1.00 .035 .040 .15 - .35 .40 - .70 .40 - .60 .15 - .25
  8655 .51 - .59 .75 - 1.00 .035 .040 .15 - .35 .40 - .70 .40 - .60 .15 - .25
  8660 * .56 - .64 .75 - 1.00 .035 .040 .15 - .35 .40 - .70 .40 - .60 .15 - .25
  8720 .18 - .23 .70 - .90 .035 .040 .15 - .35 .40 - .70 .40 - .60 .20 - .30
  8740 .38 - .43 .75 - 1.00 .035 .040 .15 - .35 .40 - .70 .40 - .60 .20 - .30
  8822 .20 - .25 .75 - 1.00 .035 .040 .15 - .35 .40 - .70 .40 - .60 .30 - .40
  9254 * .51 - .59 .60 - .80 .035 .040 1.20 - 1.60 -- .60 - .80 --
  9255 .51 - .59 .70 - .95 .035 .040 1.80 - 2.20 -- -- --
  9260 .56 - .64 .75 - 1.00 .035 .040 1.80 - 2.20 -- -- --
  E9310 * .08 - .13 .45 - .65 .025 .025 .15 - .35 3.00 - 3.50 1.00 - 1.40 .08 - .15
  94B15 * .13 - .18 .75 - 1.00 .035 .040 .15 - .35 .30 - .60 .30 - .50 .08 - .15
  94B17 .15 - .20 .75 - 1.00 .035 .040 .15 - .35 .30 - .60 .30 - .50 .08 - .15
  94B30 .28 - .33 .75 - 1.00 .035 .040 .15 - .35 .30 - .60 .30 - .50 .08 - .15

* SAE ONLY

See Notes at Bottom

NOTES

Note 1 Grades shown in the above list with prefix letter "E" are normally made by the basic electric furnace process.  All others are normally manufactured by the basic open hearth or basic oxygen process but may be manufactured by the basic electric furnace process.

Note 2:  If electric furnace practice is specified or required for grades other than those designated (ie. E4340 the limits for phosphorus and sulfer are 0.025 per cent respectively and the prefix "E" is added.

Note 3:  For acid electric and acid open hearth steels, the limits for phosphorus and sulfer are 0.050 per cent respectively.

Note 4:  In the case of certain qualities the foregoing standard steels are ordinarliy furnished to lower the phosphorus and lower sulfer maxima as hereinafter indicated.

Note 5:  Small quantities of certain elements are present in alloy steels which are not specified or required.  These elements are considered as incidental and may be present to the following maximum amounts:  Copper, 0.35 per cent;  Nickel, 0.25 per cent; Chromium, 0.20 per cent; and molybdenum, 0.06 per cent.

Note 6:  The chemical ranges and limits shown in Table 2-1 and the notes below that Table are subject to the product analysis tolerances shown in Table 2-3.

Note 7:  Standard Steels can be produced with a lead range of 0.15/0.35 per cent.  Such steels are identified by inserting the letter "L" between the second and third numerals of the AISI number, e.g. 41L40.  Lead is generally reported as a range of 0.15/0.35 per cent.

Note 8:  Where minimum and maximum sulfer content is shown it is indicative of resulferized steel.

Note 9:  Standard Alloy Steels, which are generally fine grain, may be produced with a boron treatment addition to improve hardenability.  Such steels can be expected to contain 0.0005 to 0.003 per cent boron.  These steels are identified by inserting the letter "B" between  the second and third numerals of the AISI number, e.g. 50B46.