12 CRR-NY 21.13NY-CRR

STATE COMPILATION OF CODES, RULES AND REGULATIONS OF THE STATE OF NEW YORK
TITLE 12. DEPARTMENT OF LABOR
CHAPTER I. INDUSTRIAL BOARD OF APPEALS
SUBCHAPTER A. THE INDUSTRIAL CODE
PART 21. PROTECTION OF PERSONS EMPLOYED AT WINDOW CLEANING—STRUCTURAL REQUIREMENTS, EQUIPMENT AND PROCEDURES
12 CRR-NY 21.13
12 CRR-NY 21.13
21.13 Specifications for anchors and anchor fastenings.
(a) Required type.
Anchors and their fastenings shall be approved and the anchor shall bear the mark of approval prescribed by the board. They shall be machined from bar stock or forged as hereinafter set forth. Anchors shall conform with the dimensions as shown in Figures 2 and 3 below:
(b) Required material.
Anchors and anchor fastenings except reinforcing plates shall be of alloys as follows:
(1) Items which are to be forged shall be made of the following alloys:
Nickel-copper alloy, ASTM designation B127-49T containing
NickelMax. Per cent63.0 to 70.0
Iron“ “2.5
Aluminum“ “0.5
Manganese“ “1.25
Carbon“ “0.3
Silicon“ “0.5
Sulfur“ “0.02
Copper remainder; or
Copper-nickel alloy, ASTM designation B122-54T, alloy No. 5 containing
NickelMax. Per cent29.0 to 33.0
Iron“ “0.7
Manganese“ “1.0
Lead“ “0.05
Zinc“ “1.0
CopperMin. Per cent65.0; or
Stainless steel AISI type No. 304 containing
CarbonMax. Per cent0.08
Manganese“ “2.0
Silicon“ “1.0
Phosphorus“ “0.04
Sulfur“ “0.03
ChromiumPer cent18.0 to 20.0
Nickel8.0 to 11.0; or
Stainless steel AISI type No. 316 containing
CarbonMax. Per cent0.1
Manganese“ “2.0
Silicon“ “1.0
Phosphorus“ “0.04
Sulfur“ “0.03
ChromiumPer cent16.0 to 18.0
Nickel10.0 to 14.0
Molybdenum2.0 to 3.0
(2) Machined fastenings and other items shall be of the same material as the forgings to which they are attached except that machined parts of stainless steel may be made from AISI type 303 and machined parts of nickel-copper alloy may be made from Class B material having a sulfur content of not more than 0.5 per cent.
(c) Required fabrication.
(1) Anchors and anchor fastenings shall be machined from bar stock, or forged and treated as specified below:
FORGING
MaterialPreheat temp. (°F.)Start forging at (°F.)Finish forgin at (°F.)Anneal after forgingRange of BHN hardness after forging and annealing
Ni-CuNoneNot over 2150Not below 17005 to 10 min. at 1600°F.110 to 140 BHN
Cu-NiNone19001600Approx. 5 min. at 1700 to 1750°F.150 to 170 BHN
304to 1500 slowly2050 to 22001600 to 170015 min. 1950 to 2050°F.150 to 160 BHN
316to 1500 slowly2100 to 22001600 to 170015 min. at 1950 to 2050°F.150 to 170 BHN
(2) The heating for forging of nickel-copper and copper-nickel alloys shall be done in an atmosphere that is essentially sulfur-free. The fuel used shall contain not more than 0.5 per cent of sulfur. Such atmosphere shall be slightly reducing with a carbon-monoxide content of two per cent or more. After forging and annealing, each anchor shall be pickled to remove scale and discoloration. No cold working of anchors other than drilling, spot-facing, reaming, boring, broaching, countersinking, threading, and grinding is permitted.
(d) Finish.
The finished anchor shall be free of imperfections and all corners shall be properly filleted or rounded. Where screw fastenings are used, the surface shall be spot-faced to receive the lock washer under the screw head.
(e) Tests of finished forgings.
(1) If and when the commissioner so requires, the owner of finished forgings of anchors and anchor fastenings shall select such number of forgings from each lot as the commissioner may require for testing. The commissioner may require such test specimens to be subjected by the owner to the BHN hardness test and a nondestructive test such as the fluorescent penetrant test.
(2) The manufacturer of such anchor forgings shall cause at least one per cent, but not less than two forgings, of each lot to be subjected to an impact test as follows:
The anchor shall be attached to a rigid anchorage. A 250 pound solid and compact weight of iron or lead shall be suspended from the anchor by means of an approved belt terminal and a 6-37 strand three-eighths inch plow steel wire rope. The test rope shall be not more than six feet long and rope connections shall be by thimble and splice or proper size rope clamps. The test weight shall be hoisted to a point in vertical alignment with the point of suspension and allowed to fall free a distance of four feet.
(3) Such manufacturer shall notify the commissioner of such impact tests in advance.
(4) If any specimen from a lot fails to withstand the impact test, the lot from which it was taken shall be either re-treated and retested or scrapped. If any specimens from a re-treated lot fails to withstand such test, the lot shall be rejected and scrapped.
(f) Screw thread.
Fastening screws and bolts shall have an untreated portion under the head not less than three-sixteenths inch long. Threads shall be cut.
12 CRR-NY 21.13
Current through March 15, 2022
End of Document

IMPORTANT NOTE REGARDING CONTENT CURRENCY: The "Current through" date indicated immediately above is the date of the most recently produced official NYCRR supplement covering this rule section. For later updates to this section, if any, please: consult editions of the NYS Register published after this date; or contact the NYS Department of State Division of Administrative Rules at [email protected]. See Help for additional information on the currency of this unofficial version of NYS Rules.