Galvanizing Sample Clauses

Galvanizing. Galvanizing shall be applied by the hot dipped process. The preparation for galvanizing and the galvanizing process shall not adversely affect the mechanical properties of the material being coated. The zinc coating shall be clean, of uniform thickness and free from defects. When zinc spray coating is used, surfaces shall be shot blasted before spraying. Drilling, punching, cutting, bending and removal of burrs shall be completed before galvanizing/zinc spray coating. The average thickness of the zinc coating shall be equivalent to not less than 0.6 kg/m2 of zinc for all surfaces, except steel wires. The thickness of the zinc coating for steel wires shall be in accordance with a national standard and shall be approved by the Engineer. Material on which galvanizing has been damaged shall be re-dipped unless, in the opinion of the Engineer, the damage is local and can be repaired by applying a coat of galvanizing repair paint. Where such a repair is authorized, tdamaged area shall be cleaned bwiping with clean rags saturated with mineral spirits or xylene followed by wire brushing. After wire brushing, the area shall be re-cleaned with solvent to remove residue and shall be given a minimum of two coats of zinc rich paint in accordance with the manufacturer’s instructions. Samples selected by the Engineer of all galvanized material shall be subjected to the galvanizing tests set out in the appropriate material standard (eg BS 443/BS 729). Sheradizing or other similar processes shall not be used unless expressly approved by the Engineer. Surfaces in contact with oil shall not be galvanized or cadmium plated.

Galvanizing. 6.12.1 Sample Tests Representative samples, selected by the Engineer of all galvanized material shall be submitted to galvanizing tests. Galvanized fittings associated with insulators, and steel cores for aluminum conductor steel reinforced cables shall be tested in line with the relevant IEC Recommendation. All other fittings, fabrications, hardware and fixings shall be inspected and tested in accordance with ISO Recommendations R1460 and R1461.

Galvanizing. Hot-Dip Galvanized Finish: Apply zinc coating by the hot-dip process to structural steel in accordance with ASTM A123/A123M.

Galvanizing. .1 All materials, structural steel, pipe and fittings, including bolts, nuts and washers shall be hot dip galvanized to the requirement of CSA S37-13 and CSA-G164 and as otherwise specified therein. .2 All materials shall be completely fabricated before galvanizing (except the tapping of nuts). .3 Before galvanizing, the steel shall be thoroughly cleaned of all paint, grease, rust, scale or other materials that will interfere with proper binding of the zinc with the steel.

Galvanizing. A. Galvanizing of steel piling, when required, shall be by the hot dip method, in accordance with ASTM A123/A123M Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products. B. Galvanized piling on which the galvanized coating has been damaged shall be replaced or repaired in accordance with ASTM A780, Method A3 to a minimum thickness of 180 µm. C. Where the upper portions of piling are specified to be galvanized on the applicable Final Design, excess piling shall be removed from the ungalvanized portion of the piling to ensure that the galvanized portion extends down to the elevation shown on the Final Design.

Galvanizing a. Fabricate steel to be galvanized in accordance with ASTM A143, ASTM A384, and ASTM A385. Avoid fabrication techniques that could cause distortion or embrittlement of the steel. b. Provide venting and drain holes for tubular members and fabricated assemblies in accordance with ASTM A385. c. Remove welding slag, splatter, burrs, grease, oil, paint, lacquer, and other deleterious material prior to delivery for galvanizing. d. Remove by blast cleaning or other methods surface contaminants and coatings not removable by normal chemical cleaning process in the galvanizing operation. e. Hot-dip galvanize steel members, fabrications, and assemblies after fabrication in accordance with ASTM A123/A123M. f. Hot-dip galvanize bolts, nuts, washers, and hardware components in accordance with ASTM A153/A153M. Oversize holes to allow for zinc alloy growth. Shop assemble bolts and nuts. g. Galvanized steel sheets in accordance with ASTM A653. h. Galvanize components of bolted assemblies separately before assembly. Galvanizing of tapped holes is not required.

Galvanizing. (a) Shop Applied (i) The galvanizing shall be shop applied and strictly in accordance with CSA Standard G164 and ASTM A767M latest addition to a retention equal to a Class II level (610 g/m2), except as otherwise specified herein. (ii) Submit an original and three (3) copies of the coating applicator‟s notarized Certificate of Compliance that the hot-dip galvanized coating meets or exceeds the specified requirements. (iii) Preclean reinforcing steel using acceptable methods to produce an acceptable surface for quality hot-dip galvanizing. If sulphuric acid or hydrochloric acid is used as a pickling bath for precleaning, care shall be exercised to minimize the immersion time. If signs of hydrogen embrittlement are present after pickling due to excessive immersion time, all reinforcing in that shipment will be rejected and shall be replaced at no additional cost to this Contract. (iv) Handle all articles to be galvanized in such a manner as to avoid any mechanical damage and to minimize distortion. (v) The surface finish shall be continuous, adherent, as smooth and evenly distributed as possible, and free from any defect detrimental to the stated end use of the coated article. (vi) Coating adhesion shall withstand normal handling consistent with the nature and thickness of the coating and normal use of the article. (vii) Sheared ends of bars shall be coated with a zinc-rich formulation before rusting occurs and before shipment to the job site. (viii) Furthermore, all field welds, as well as cracking and other visible damage or deterioration of the hot-dip galvanizing as a result of handling or bending operations, or any other causes, shall be galvanize-coated with field applied galvanizing touch-up material as specified hereinafter. (b) Field Applied (i) All field applied galvanized coatings shall be applied in accordance with ASTM A780M. (ii) Further to ASTM A780M, paints used for field applied galvanizing shall contain zinc dust above ninety two (92) percent in the dried film. (iii) At least seven (7) days prior to any field applied galvanizing, the Contract shall submit the galvanizing product and application details to the Contract Administrator for review. (iv) Spray applied field galvanizing will not be permitted. Where restrictions occur that brush applied field galvanizing is not possible, spray applied field galvanizing may be permitted if accepted in writing by the Contract Administrator prior to application. (v) All field applied galvanized coatin...

Galvanizing. General Galvanising of iron and steel articles shall be carried out by the hot dip process. The preparation for galvanising and the galvanising process shall not adversely affect the mechanical properties of the material coated. All galvanising shall be in accordance with BS 729, ISO 1460 or an equivalent approved standard to give a uniform thickness, free from defects and a minimum average coating weight. Galvanised finned tubing shall have a minimum average thickness of 70 microns. Other methods of depositing zinc coating such as sheradising, electroplating or metal spraying shall not be used unless specifically approved. Surfaces which are in contact with fluid shall not be galvanised or cadmium plated. The identifying marks on any galvanised parts shall be stamped before galvanising is applied and shall be clearly legible afterwards. Zinc coated fasteners such as nuts and bolts should be lubricated with beeswax or other suitable lubricant prior to fitting and tightening. Material on which the galvanising has been damaged shall be re-dipped.

Galvanizing. All ferrous parts should invariably be hot dip galvanised. However, the bolts, nuts, washers, spring washers and split pins, which can be electro-galvanised. The threads of nuts and tapped holes that shall be cut after the galvanization shall be well oiled or greased.

Galvanizing. A. Hot-Dip Galvanized Finish: Apply zinc coating by the hot-dip process to structural steel according to ASTM A 123/A 123M. 1. Fill vent and drain holes that are exposed in the finished Work unless they function as weep holes, by plugging with zinc solder and filing off smooth.