Alloy H Steels - Heat Chemical Ranges and Limits
Alloy H Steel Composition
|
AISI or SAE |
|
|
|
|
|
|
|---|---|---|---|---|---|---|
|
1330H |
.27-.33 |
1.45-2.05 |
.15- 35 |
|
|
|
|
4027H |
.24-.30 |
.60-1.00 |
.15-.35 |
|
|
.20-.30 |
|
4042H |
.39-.46 |
.60-1.00 |
.15-.35 |
|
.20-.30 |
|
|
4135H |
.32-.38 |
.60-1.00 |
.15-.35 |
|
.75-1.20 |
.15-.25 |
|
4145H |
.42-.49 |
.65-1.10 |
.15-.35 |
.75-1.20 |
.15-.25 |
|
|
4320H |
.17-.23 |
.40-.70 |
.15-.35 |
1.55-2.00 |
.35-.65 |
.20-.30 |
|
4620H |
.17-.23 |
.35-.75 |
.15-.35 |
1.55-2.00 |
|
.20-.30 |
|
4720H |
.17-.23 |
.45-.75 |
.15-.35 |
.85-1.25 |
.30-. 60 |
.15-.25 |
|
50B40H |
.37-.44 |
.65-1.10 |
.15-.35 |
.30-.70 |
||
|
50B50H |
.47-.54 |
.65-1.10 |
.15-.35 |
.30-.70 |
||
|
5132H |
.29-.35 |
.50-.90 |
.15-.35 |
.65-1.10 |
||
|
5147H |
.45-.52 |
.60-1.05 |
.15-.35 |
.80-1.25 |
||
|
51B60H |
.55-.65 |
.65-1.10 |
.15-.35 |
.15-.45 |
.60-1.00 |
.10-.15 V .15 Min. V .08-.15 |
* Sulfur = .035- 0.50%
** Sulfur = .025 max.
|
AISI or |
C |
Mn |
Sl |
Ni |
Cr |
Mo |
|---|---|---|---|---|---|---|
|
8617H |
.14- .20 |
.60- .95 |
.15- .35 |
.35- .75 |
.35- .65 |
.15- .25 |
|
8627H |
.24- .30 |
.60- .95 |
.15- .35 |
.35- .75 |
.35- .65 |
.15- .25 .15- .25 .15- .25 .15- .25 |
|
8640H |
.37- .44 |
.70- 1.05 |
.15- .35 |
.35- .75 |
.35- .65 |
.15- .25 |
|
8650H |
.47- .54 |
.70- 1.05 |
.15- .35 |
.35- .75 |
.35- .65 |
.15- .25 |
|
8740H |
.37- .44 |
.70- 1.05 |
.15- .35 |
.35- .75 |
.35- .65 |
.20- .30 |
| 94B15H 94B17H 94830H |
.12- .18 |
.70- 1.05 |
.15- .35 |
.25- .65 |
.25- .55 |
.08- .15 |
|
Maximum per cent |
||
|---|---|---|
|
P |
S |
|
|
Basic electric |
.025 |
.025 |
|
Basic open hearth or |
|
|
|
Acid electric |
.050 |
.050 |
|
Acid open hearth |
.050 |
.050 |
NOTE 2. Minimum silicon limit for acid open hearth or acid electric furnace alloy steel is 15 per cent.
NOTE 3. 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, .35 per cent; Nickel, .25 per cent; Chromium, .20 per cent; and Molybdenum, .06 per cent.
NOTE 4. The chemical ranges and limits shown this Table and In the notes below this Table are subject to the product analysis tolerances shown In the AISI Manual. (Dated March, 1986)
NOTE 5. Standard H-Steels can be produced with a lead range of .15/.35 per cent. Such steels are identified by inserting the fetter "L" between the second and third numerals of the AISI number, e.g., 41 L 40 H. Lead is reported only as a range of .15/.35 per cent.
NOTE 6. Where minimum and maximum sulfur content is shown It is indicative of resulfurized steel.
