A06_44027273_Specifications_1_of_4.pdf

FEBRUARY 4, 2016

UNFLARED STAINLESS STEEL PIPE WITH BRASS CAP SURVEY MONUMENT SPECIFICATIONS

General

These specifications are for an assembled UNFLARED stainless steel pipe with brass cap survey monument for permanently marking survey positions on the ground. The monuments are used by the government by shipping them from Anchorage throughout Alaska and then packing by the surveyor to the individual survey points, where the surveyor bends the survey pipe flanges to a ninety degree angle and buries the survey monument at least 3/4 of its length in the ground, in a hole dug by the surveyor.

Specifications

MONUMENT CAP

The monument cap shall be a silicon bronze, bronze alloy, conforming to:

A.S.T.M. (Ingot) B-30 (872) or

A.S.T.M. (Castings) B-584 (872) and B-271 (872) or

The equivalent.

The silicon bronze, bronze alloy shall have the following nominal chemical composition:

Copper 92

Silicon 4

Zinc 4

Equivalency is based on the durability and corrosion resistant properties of the monument cap in the following environments: acids, bases (alkaline), salts, and dissimilar materials (reduced galvanic reaction).

The monument cap dimensions are shown in Drawing Nos. 1 and 2.

The monument cap shall have a standard Cadastral Survey inscription conforming to Drawing No. 1.

The inscription shall be balanced and centered. All letters and numbers shall be uniformly indented a minimum of 1/32 of an inch (not raised), have clean unbroken uniform lines, and be clear and legible.

The cap shall have a socket portion which is specially shaped to force fit over the outside diameter of the pipe's upper end. The cap is held in place on the pipe by a solid stainless steel rivet, as shown in Drawing

Nos. 2 and 3 or 4.

The surface shall be smooth and have a medium gloss, polish-like finish.

The U.S. Government does NOT have a cast for casting the monument cap nor does it have dies for forging the cap. It is the vendor’s responsibility to manufacture their own cast or die.

A sample similar type monument cap showing the quality of inscription, depth of indentation, and degree of polish acceptable under terms of this contract is available for inspection.

MONUMENT CAP MAGNET:

The monument cap shall have a ceramic magnet permanently attached within the cap socket and retained by mechanical means. For aid in assembly, an adhesive may be used in ADDITION to the mechanical retention. The ceramic magnet shall be capable of remaining in place should there be no adhesive or the adhesive should unbond between the monument cap or the ceramic magnet.

Recommended minimum magnet dimensions are as shown in Drawing No. 2.

The monument cap magnet shall have a minimum detection range of at least 3.5 feet when using a

Schonstedt Instrument Company, model GA-52C metal detector, or an equivalent metal detector.

PIPE CAP RIVET:

The cap rivet shall be 3/16" x 3" flat or oval head rivet, solid stainless steel, type 304 or equivalent.

Equivalency is based on the durability and corrosion resistant properties in the following environments:

acids, bases (alkaline), salts, and dissimilar materials (reduced galvanic reaction).

MONUMENT PIPE

The monument pipe is made from Type 304 or Type 316 stainless steel, Schedule 10 pipe, with a nominal diameter of 2 ½ inches and cut to 30" in length. The actual pipe inside diameter is 2.157 inches (2 5/32 inches). The pipe wall thickness is 0.109 inches (7/64 inches). The actual pipe outside diameter is 2.375 inches (2 3/8 inches).

The stainless steel pipe may be either seamless or continuous butt welded. If there is a seam, it must be flush both on the inside and outside of the stainless steel pipe.

PIPE BASE

The pipe base shall be either cut as shown in Drawing No. 3 or notched as shown in Drawing No. 4. The

4 cuts or 4 notches in each pipe base must be equally spaced.

All of the monuments shall be shipped with UNFLARED bases!!

ASSEMBLY:

The monument cap shall be pressed onto the top of the pipe with a firm fit and shall bottom inside the cap recess.

The cap and pipe shall be drilled, fitted, and set with a rivet. A matched through hole shall be drilled for the rivet using a guided "V" block, or equivalent, to assure the hole is drilled on the pipe center line.

Sufficient edge material must be allowed to prevent the rivet hole from cracking out when the rivet is set.

The rivet must be installed and finished with at least 5/16 inches diameter material on each end of the rivet after it is set (battered).

The final set (battered) rivet must be tight against the brass cap with no movement by hand possible.

If requested, the selected vendor shall be sent, at the expense of the government, a sample of a similar type survey monument. The sample similar type survey monument shall be returned, at the expense of the contractor, at the time the first article is submitted or the first shipment of monuments is shipped.

FINISH

The finished monuments must be free of grease and mechanical oil on the exterior surfaces. The unflared monuments shall have no sharp burrs, capable of cutting an ungloved hand, on the exposed portions on the exterior of the monument.

PACKAGING

The monuments shall arrive at their delivery location orderly and neatly packaged onto standard shipping pallets using industry standard packaging and shipping procedures. Each individual container or skid, along with the survey monuments, shall not exceed 4 feet in length, width, or height. The quantity shall be marked on all packages and pallets.

DELIVERY

The assembled monuments shall be delivered to the Bureau of Land Management at 4700 BLM Road, Anchorage, Alaska 99507, no later than May 1, 2017.

ATTACHMENTS

Drawings 1, 2, 3, and 4 (Two Sheets)

Contact for further information or questions.

Kurt Huhta khuhta@blm.gov

BLM Cadastral Field Surveys

222 W. 7th Ave. #44

Anchorage, AK 99513-7504

(907) 271-4234

(907) 271-4193 facsimile mailto:khuhta@blm.gov