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Classification Table


ALUMINUM
(Turquoise)

Aluminum Alloys
Magnesium Alloys
Soft Phosphorus Bronze
Zinc-Die Cast Alloys
Lead Alloys
Leaded Brass & Free Cutting Brass
Non-Metals & Plastics
1100, 2017, 3003, 5052, 6061
HK31A-HM31A, AZ21A-AZ92A
544
ZDCN07, AG40A, AC41A, 4803
B23 ALLOY 13, B23 ALLOY 8
335, 360, 353, 340, 330

COPPER ALLOYS
(Rust)

Copper Alloys
Brass-Yellow, Red, Naval
Commercial Bronze
Aluminum Bronze
Phosphorus Bronze
Beryllium Bronze
Nickel Silver
260, 443-445, 365-370, 280
883-848, 230, 270, 268
314, 220
952-958, 614
524, 521, 510, 505
175, 172, 170
973-978, 745-770

CAST IRON
(Purple)

Gray Cast Iron
Compacted Graphite Cast Iron
Nodular (Ductile) Cast Iron-Austenitic
White Cast Iron
Stainless Steel-Free Machining
(See Med. Strength For Malleable Cast Iron)
A436, A48
NOT NO. DESIGNATED
A439
A532
203EZ, 303MA, 303SE, 303

LOW CARBON STEELS
(Gold)

Low Carbon And Low Carbon Free Machining
Med. Carbon & Med. Carbon Free Machining
Leaded Low Carbon
Leaded Medium Carbon
Cast Steel-Low Carbon
Cast Steel-Medium Carbon
1211-1215, 1108-1119, 1005-1029
1132-1151, 1030-1055
11L17, 10L18, 12L13-12L15
11L44, 11L37, 10L50, 10L45
1020, 1010
1050, 1040, 1030

MEDIUM STRENGTH STEELS
(Green)

High Carbon
Low & Medium Carbon Alloy & Cast
Leaded Alloy-Medium & High Carbon
Stainless Steel - Ferretic & Martensitic
Stainless Steel - Free Machining
Malleable Cast Iron
Nodular (Ductile) Cast Iron
50B46, 1060-1095, 4340, 4330
50B60, 5155-51B60, 4140-4150
86L40, 43L40, 41L50, 41L30
A217, A297, 436, 403-410
440F SE, 440F, 430F, 420F, 416
J158, A602, A220, A47
J434C, A536

HIGH STRENGTH
STEELS

(Blue)

High Carbon Alloy
High Strength
Maraging
Tool
Armor Plate
Nitriding
M50, 50100, 51100, 52100
HP9, 300M D6AC, H13, 4340
GRADES 120-350, A538
H11-H42, 01-07, D2-D5, A2-A10
MILS12560, HY180, HY100, HY80
NITREX 1, 135 MOD, 125, NITRALLOY

HIGH TEMPERATURE ALLOYS
(Red)

Titanium Alloys
Nickel Base Alloys
Cobalt Base Alloys
Iron Base Alloys
Stainless Steel - Austenitic
Stainless Steel - Ph Series
BETA, ALPHA, ALPHA/BETA
WASPALLOY, HASTELLOY, INCONELS
HOWMET, HAYNES
DISCALLY, V57, A286, INCOLOY
358, 317, 304, 301, 302, 304
455, AM350, 15-5 PH, 17-4 PH

 

Lexington's tool selection is based on material's most common condition.
Special heat treatements or processing may change the material's machining characteristics.
This guide is a suggested starting point for tool selection.