CHICAGO TUBE AND IRON COMPANY
COLOR CODES

TUBING
Structural 70,000 Min. Yield (HSLA)Green
Structural 70,000 Min. Yield Flash Controlled (HSLA)Pink
Structural 100,000 Min. Yield (HSLA)Purple
CARBON/ALLOY BAR
1018Blue
1035Gold
1042Green/Gold
1045Red
1117Yellow
11L17Pink
1141Silver
1144 Stress 100M Min. YieldPurple
1144 Fatigue-ProofPurple/White
12L14Orange
1214 with BismuthGreen/White
1214SAGreen
12L14 with TelluriumOrange/Green
1215White
ETD 150Gray/Yellow
4130 AnnealedBlack/Blue
4130 HT-SRBlack/Pink
4140/4142 AnnealedBlack
4140 with Bismuth AnnealedBlack/Yellow
4140/4142 HT-SRTan
41L40/41L42 AnnealedBlack/Red
41L40 with Tellurium AnnealedBlack/White
41L40/41L42 HT-SRBlack/Orange
52100 CD AnnealedGray
52100 HR AnnealedGray/White
8620Brown
86L20Brown/White
Nitralloy Type 135 MIL-S6709White/Blue
ALUMINUM BAR / PROFILES
2011-T3Brown
2017-T4Yellow
2024-T3Red
2024-T4Red/Blue
2024-T351Red/Green
2024-T351 Stress RelievedRed/White
2024-T351 Extruded Stress RelievedRed/Yellow
6061-T6Green
6061-T6 Extruded Stress RelievedGreen/Gold
6061-T651White
6061-T6511Blue/Yellow
6061-T6511 ExtrudedBlue
7075-T6Black/White
7075-T651Black
STAINLESS BAR
303Yellow
304Copper
316Black
17-4Pink
416Tan
440CGold
Nitronic 60Orange
MISCELLANEOUS BAR
360 Half Hard Brass AlloySilver
145 Copper Alloy CDASilver/Gold
Tool SteelsCopper