A-2 Drill Rod is air-hardening ground and polished. It can be used to replace O-1 for applications for safer heat treating, less distortion during hardening and greater wear resistance.
A-2 features good machinability, high stability after hardening, good wear resistance and is suitable for medium run tooling.
Chemical Composition
- Carbon .95/1.05
- Maganese 1.00 max
- Silicon .030 max
- Phosphorus .025 max.
- Sulphur .030 max.
- Chromium 4.75/5.50
- Vanadium .15/.50
- Tungsten --Molybdenum .90/1.40
Tolerances Standard Diameter
- .06250 to 0.1240 +/- .0003"
- .01250 to 0.4990 +/- .0005"
- .05000 to 3.000 +/- .0010"
- Straightness
- .005" Max TIR in 12"
- + .12500 - 0.00"
- Standard Length Tolerance
- + .12500 -0.00"
UNS T30102
- SAE J-437
- ASTM A-681-94
- Federal QQT-570-Rev C
Surface Finish
- .06250 to 0.12499 10 RMS
- 0.12500 to 0.4999 15 RMS
- 0.5000 to 0.87499 20 RMS
Fractional Sizes Available in 3' & 12' Length
- 1/16"
- 5/64"
- 3/32"
- 7/64"
- 1/8"
- 9/64"
- 5/32"
- 11/64"
- 3/16"
- 13/64"
- 7/32"
- 15/64"
- 1/4"
- 17/64"
- 9/32"
- 19/64"
- 5/16"
- 21/64"
- 11/32"
- 23/64"
- 3/8"
- 25/64"
- 13/32"
- 27/64"
- 7/16"
- 29/64"
- 15/32"
- 31/64"
- 1/2"
- 17/32"
- 9/16"
- 19/32"
- 5/8"
- 21/32"
- 11/16"
- 23/32"
- 3/4"
- 13/16"
- 7/8"
- 15/16"
- 1"
- 1-1/8"
- 1-1/4"
- 1-3/8"
- 1-1/2"
- 1-3/4"
- 2"
Letter Sizes Available in 3' & 12' Length
- A
- B
- C
- D
- E
- F
- G
- H
- I
- J
- K
- L
- Q
- R
- S
- T
- U
- V
- W
- X
- Y
- Z
Metric Sizes Available in 3' Length
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 21
- 22
- 23
- 24
- 25