|
All tool steel analyses (O-1, A-2, D-2, S-7) are supplied in the annealed condition. Close control assures complete spheroidization throughout. The low-carbon analysis (C-1018) is supplied with pearlitic microstructure.
AISI O1
A general-purpose oil-hardening tool steel that is versatile and suitable for a wide variety of cold work applications.
Typical chemistry
|
C
|
1.00
|
|
Mn
|
1.20
|
|
Si
|
0.35
|
|
Cr
|
0.35
|
|
W
|
0.50
|
Hardening
Preheating Temperature:
1110-1290 ° F (600-700 ° C)
Austenitizing Temperature:
1450-1560 ° F (790-850 ° C)
Protect the part against decarburization and oxidation during hardening. Quench as quickly as possible. Cooling must be uniform and at a rate to avoid distortion and/or quench cracking. Choose the temperature from the tempering graph. Temper twice with intermediate cooling to room temperature. Lowest temperature 360 ° F (180 ° C). Holding time at temperature minimum 2 hours.
AISI A2
An air or oil hardening tool steel offering an excellent combination of wear resistance and toughness.
Typical Chemistry
|
C
|
1.00
|
|
Mn
|
0.70
|
|
Cr
|
5.00
|
|
Mo
|
1.10
|
|
V
|
0.25
|
Hardening
Preheating Temperature:
1200-1300 ° F (650-750 ° C)
Austenitizing Temperature:
1690-1780 ° F (925-970 ° C)
Hold for 30 minutes once the entire tool reaches temperature. Protect the part against decarburization and oxidation during hardening. Quench as quickly as possible. Cooling must be uniform and at a rate to avoid distortion and/or quench cracking. Choose the tempering temperature from the tempering graph. Temper twice with intermediate cooling to room temperature. Lowest temperature 360 ° F (180 ° C). Holding time at temperature minimum 2 hours.
 AISI D2
A high-carbon, high-chromium tool steel recommended for tools requiring very high wear resistance combined with moderate toughness.
Typical Chemistry
| C |
1.50 |
| Mn |
0.40 |
| Si |
0.30 |
| Cr |
12.00 |
| Mo |
0.80 |
| V |
0.90 |
Hardening
Preheating Temperature: 1110-1290 ° F (650-750 ° C)
Austenitizing Temperature: 1810-1920 ° F (990-1050 ° C)
Protect the part against decarburization and oxidation during hardening. Choose the tempering temperature from the tempering graph. Temper twice with intermediate cooling to room temperature. Lowest temperature 360 ° F (180 ° C). Holding time at temperature minimum 2 hours. High temperature tempers are preferred when dimensional stability is of concern, if tools are to be coated, and/or EDM'd in hardened condition.
AISI 4142 PFG
A modified pre-hardened alloy steel with a Brinell Hardness of 261-321 (Rockwell C Hardness 26-34).
Typical chemistry
| C |
0.38/0.46 |
| Mn |
0.70/1.00 |
| Si |
0.15/0.30 |
| Cr |
0.03 min. |
| W |
- |
AISI W1 Drill Rod
A water-hardening and cold-drawn drill rod with through-hardening qualities that affords it optimum response to heat treatment and provides toughness and maximum wear-resistance in many maintenance applications.
Typical chemistry
| C |
0.95/1.05 |
| Mn |
0.30/0.40 |
| Si |
0.10/0.25 |
| Cr |
0.15 max |
| W |
0.15 max |
AISI M2 Drill Rod
An annealed tungsten-molybdenum high speed steel with a wider heat treat range and a resistance to decarburization.
Typical chemistry
| C |
0.85 max. |
| Mn |
0.30 max. |
| Si |
0.30 max. |
| Cr |
4.00 max. |
| W |
6.00 max. |
Technical References
Please refer to AISI Industry Standard specifications at
www.steel.org
. If there are unanswered technical questions, please e-mail a detailed explanation to
techsupport@flatground.com
.
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