Attachment 3 Regular Aluminum Specs.pdf
PDF 246 KB Posted
- Attached to
- Coiled Aluminum - CCi
- Solicitation number
- RFP CFAA 2027000091 1
- Issued by
- Garfield County, Colorado
About this file
This attachment contains aluminum specifications for license plate material required by Colorado Correctional Industries, a state agency under the Colorado Department of Corrections. The specifications detail the requirements for regular plate aluminum coiled stock to be used in license plate manufacturing. The material must be 3105H21 alloy aluminum, 21 gauge (.027" thickness), with coil widths between 11.98 to 12.00 inches, ultimate strength of 17,500 to 20,500 PSI, and minimum yield strength of 13,000 to 18,000 PSI. The aluminum must withstand embossing with steel dies to a height of .09375" without breaking or surface damage and must meet Bonderite M-CR 1430 C pretreatment and ASTM specification B-449-Class 2 conversion coating standards. Packaging requirements specify 20-inch diameter cores with maximum outside coil diameter of 45 inches and individual coil weight not exceeding 1,500 pounds, with coils banded and separated by wood spacers to prevent damage during transit. Monthly delivery consists of three truckloads of approximately 37,000 pounds each until the order is completed, with a contract end date of September 22, 2026. Receiving is limited to Monday through Thursday, excluding state holidays.
The supplier must ensure coils are free from edge damage, wound straight and reasonably tight with no more than 1/16-inch interweave, and all coils must unwind clockwise when placed on pallets. The material must be packaged to prevent exposure to moisture and foreign contamination during shipment. No pricing terms, set-asides, incumbent information, or funding sources are specified in this attachment.
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Text version
Lucas Crocker • Colorado Correctional Industries • Supervisor III Tag / Tab / Sign 275 West Highway 50 • Cañon City, CO 81212
Phone: (719) 269-4205 • Fax: (719) 269-4238 • email: lucas.crocker@state.co.us
ATTACHMENT 3
REGULAR PLATE ALUMINUM SPECIFICATIONS
License Plate Aluminum, coiled, specifications as follows:
• Alloy type is 3105H21
• Thickness is 21 gauge (.027")
• Coil width is 11.98 to 12.00
• Ultimate strength 17,500 to 20,500 PSI
• Minimum yield strength 13,000 to 18,000 PSI
• Elongation on .0625 standard specimen: minimum 16% (20% nominal)
• Must withstand embossing with all steel dies to a height of .09375" without breaking, cutting, surface tearing, or plate warping.
• Pretreatment: Bonderite M-CR 1430 C.
• Surface finish: conversion coating in conformance with ASTM specification B-449-Class 2
(or as revised); free from any powdery residue, oil, or other substance which might affect adhesion of reflective sheeting; coating weight to 35mg. /sq. ft. with a median of 25 mg./sq. ft. as the optimum.
• Packaging: coils to have 20" diameter cores, with outside coil diameter not to exceed 45", coil weight not to exceed 1,500 lbs, each coil securely banded around the circumference and through the inside core to prevent telescoping, coils laid on their side and banded in pairs and separated by 2" x 2" wood spacers, and packaged to prevent exposure to moisture and foreign material while in transit.
• Coils shall be free from edge damage such as is caused by cables, forklifts, dull cutting dies, rough separator disc, and/or other causes that result in rough, wavy, or damaged edges.
• Aluminum shall be coiled straight and reasonably tight with no more than 1/16" interweave.
• All coils must unwind clockwise when placed on pallets.
• Receiving days are Monday-Thursday ONLY, barring state holidays.
• Delivery of 3 truckloads of approximately 37,000 lbs. each per month until order is filled.
9.22.2026
File details come from the government source that posted it. Updated .