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Material Condition Hardness COLOR RING
Recommended Alternate(s)
HRC Brinell
Tap Compass Water Hardening W1, W2, W5
Annealed 25 250
Nitriding Nitralloy 125, Nitralloy 135, Nitralloy 135Mod, Normalized,
Nitralloy 225, Nitralloy 230, Nitralloy EZ, Quenched and Tempered
Tool Steels Nitralloy N, Nitrex 1 30 280
Gray
ASTM SAE As cast, Annealed - 180
Cast Iron
A159 G1800, J431 G1800 As cast 25 250
A48 class 20 J431 G2500
A159 G2500, J431 G3000
A48 class 25 J431 G3500
A159 G3000,
A48 class 30, 25, 40 J431 G4000
A159 G3500,
A48 class 45 As cast, 35 320
A159 G4000, Quenched and Tempered
A48 class 50
A48 class 45
A48 class 55
A48 class 60
Ductile Ferritic UNS ASTM SAE DIN Annealed - 190
Cast Iron Ferritic / Pearlitic
High Alloy F32800 A536 J434 GGG50, As cast - 220
Cast Iron F33100 60-40-18 D4018 GGG60 Normalized and Tempered 25 250
F33800 GGG70 Quenched and Tempered 33 300
A536 J434 GGG80 36 330
65-45-12 D4512
- 220
A536 J434 - 215
80-55-06 D5506 25 250
Pearlitic / Martensitic F34800 A536 J434
100-70-03 D7003
Martensitic F36200 A536 J434
120-90-02 DQ&T
Austenitic UNS SAE As cast
F41000, F41001, A436 Type 1, A436 Type
F41006 1b, A436 Type 5
F41002, F41004, A436 Type 2, A436
F41007 Type 3, A436 Type 6
F41003, F41005 A436 Type 2b, A436
Type 4
High Alloy Austenitic UNS SAE Annealed - 200
Ductile 28 270
Cast Iron F43000, F43002, A439 D2, A439 D2C,
F43004, F43006, A439 D3A, A439 D5, A439
F43007, F43010
D5B, A571 D2M
F43001, F43003,
F43005 A439 D2B, A439 D3,
A439 D4
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