blade_bid_2024..docx

PROJECT REQUEST TEMPLATE

REQUEST FOR BID

Revised 05.2024

1. Complete the Request for Bid Drafting Document by filling in all green text boxes.

2. Make sure this document encompasses all desired specifications and requirements associated with the intended purchase.

3. You will upload this document as part of the OpenGov – Project Request Intake Process.

1. BID SPECIFICATIONS

List out the bid specifications that are required. Make sure to utilize the 1. 2. 3. numbering scheme for all specs. Headings can be created to separate different categories of specs by copying and pasting the “Bid Specifications” header and the first 3 bid specs (1. 2. 3.) and then revising the header name and specs accordingly.

Bid Specifications

3.1. All Blades

1. The difference between the highest and lowest tip point should not exceed 1/32 inch on any given blade assembly.

2. The finished blade section shall be free of warpage and longitudinal deviation should not exceed 1/8 inch in a fourfoot blade section.

3. Each blade section shall be identified with manufacturer's identification stamp on each end.

4. The finished blade sections shall have markings showing the front edge of the blade to avoid improper mounting.

5. All carbide blades should be standard sections with 12 inch hole centers, 1 1/2 inches from the top of the blade.

6. A manufacturer specifications sheet must be submitted with the bid.

3.2. Snow Plow Blades.

1. The blade shall be flat hot-rolled finished steel, to meet or exceed specifications for A36 or 1020 type steels. (Dane County has typically used 3/4” thick blades)

2. Punching shall be 11/16 inch square holes with counter sink to receive 5/8 inch diameter plow bolts using the AASHTO punch pattern, 1 1/2 inches from the top of the blade.

3. The groove for the carbide inserts shall be milled in the center of the blade edge.

4. Center of holes shall be in line within 1/32 inch of established horizontal centerline and 1/16 inch of established vertical centerline.

3.3. Snow Plow Blades - Tungsten Carbide Inserts

1. The inserts shall be a high-shock WC grade of tungsten carbide, with 11-12.5% cobalt content, and the following physical characteristics:

2. Density: 14.1 Minimum to 14.6 Maximum

3. Hardness: 87.5 Minimum to 89.0 Maximum (Rc. "A" Scale)

4. Transverse Rupture Strength (p.s.i.): 350,000 Minimum

5. Porosity (Based on testing in accordance with ASTM designation B276-79): A06, B00, C00

6. The carbide insert manufacturer must furnish certification to the Highway Department that the inserts meet the characteristics set forth above.

7. The inserts shall be a trapezoid design of the following dimensions:

8. Height: .635 inch +/- .005 inch (long side)

9. Width: .365 inch +/- .010 inch

10. Length: 1 inch nominal

11. Bottom Angle: 25 degrees with a nose radius of 1/16 inch minimum

12. A metallurgical evaluation of the carbide insert should show no evidence of cross grade contamination. Evaluation will be based on a photomicrograph of a polished and etched specimen at 500X magnification.

3.4. Snow Plow Blades - Brazing

1. The brazing material shall be a high-strength alloy type.

2. The braze shear strength should be 30,000 p.s.i. (minimum).

3. The tungsten carbide inserts shall be positioned in the milled groove at .010 inch between the inserts the entire length of each cutting edge section.

4. The inserts shall be brazed on all sides in a manner consistent with sound brazing practices, with no evidence of voids or use of shims.

5. Each blade section is to contain one insert, one inch nominal length for each inch of blade section length.

3.5. Overlay Blades

1. The overlay blades shall be made of C-1090 carbon steel, with a Brinell hardness of 250-300 or greater.

2. These blades shall be 1/2 inch thick, 6 inches wide, in 4, 8, 9, 11, and 12 foot lengths.

3. The blades shall have countersunk hole punches 11/16 inch in diameter, with a standard AASHTO hole punch pattern located 1-1/2 inches from the top of the blade.

3.6. Grader Blades

1. The grader blades should be the curved type, with doublebevel cutting edges.

2. The blades should be through-hardened steel, with a minimum Brinell hardness of 390, and a minimum Rockwell C-scale hardness of 42.

3. The 72 inch and 84 inch blades should be 3/4 inch thick and 8 inches wide.

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Delivery Specifications (if applicable)

14. To be delivered to:

Dane County Highway Department

15. 2302 Fish Hatchery Road, Madison, WI 53713 Additional Questions to Ask Vendors (if applicable) 16.

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2. PRICING PROPOSAL

· Below is a table to use to plan the pricing section.

· If multiple pricing tables are needed, select and copy the existing pricing table and paste the additional table below it. Don’t worry about changing the numbering for each item between tables – Purchasing will auto-number later in the process.

· We strongly encourage pricing to be broken down as much as possible, however, a 1-line lump sum pricing table may be acceptable for certain RFB’s.

· Hourly rate pricing may be acceptable in some scenarios as well.

· If applicable, Purchasing will add a Unit Cost and/or Total Cost column to the Final Pricing Table.

· Optional? Column – if an item listed is optional (not required for vendors to provide as part of the bid), then type “Yes” into the OPTIONAL column field for that item. This could be additional accessories or optional equipment add-ons, etc.

Do you want to ask for Future Pricing (in the form of % increase)?

NOTE: Maximum 5 Terms allowed per ordinance

3. CONTRACT TERM(S)

1. Anticipated Terms (Calendar Dates):

· Write in the Start Date and End Date for each possible Term. These may be adjusted by Purchasing during the review process.

· *Max. total term length is 5 years. If able, it is recommended to have the end date be December 31 for each term.

2. Initial and Renewal Terms:

· Select which terms will be included in the initial term. Then select which terms will be included as possible renewal terms. Selections should be made by placing an “X” in each applicable field.

4. VENDOR NOTIFICATION LIST

Provide the email addresses of any potential vendors that would be interested in this RF.

· Purchasing will select and utilize Category/Commodity Codes on OpenGov for the solicitation.

· OpenGov generates a vendor list based on the selected codes and will send a notification through the system once the bid is officially issued.

· The OpenGov vendor database may not capture all vendors that we want to notify, therefore, we will send out regular email notifications to the list provided below as well.

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