SAE AMS 5112L pdf download

SAE AMS 5112L pdf download.Carbon Steel, WireSpring Quality Music Wire 0.70 – 1.00c Cold Drawn.
3,4.1.2 Bending:
3.4.12.1 Wire 0.064 Inch (1.63 mm) and Over in Nominal Diameter: Shall withstand, without fracture, bending in accordance with ASTM E 290 through an angle of 120 degrees around a diameter equal to twice the nominal diameter of the wire. This test shall be performed in a suitable fixture and at four different locations on the wire at right angles to each other.
3.4.1.2.2 Wire LJnder0.064 Inch (1.63 mm) in Nominal Diameter: Shall withstand, without fracture, a Light kink test. This test shall be performed by bending a length of wire into a loop and then pulling it tight so that the opening is no larger than the diameter of the wire being tested; the loop shall then be opened up so that the wire ends are at right angles to each other. The performance of these operations shall constitute one tight kink.
3.4.1.3 Twisting (Round Wire): A straight specimen of suitable length shall be held between two clamps, one of which can be rotated, separated by a distance equal to 100 times the nominal wire diameter and twisted forward two complete 360 degree turns, reversed four turns, and then reversed repeatedly after each succeeding four turns until failure, Twisting shall be done at a uniform rate and slowly enough so that the temperature of the wire while twisting shall not exceed 212 “F (100 °C). If it is impracticable to twist a specimen as long as 100 times the wire diameter because of limitations of the twisting machine, a specimen 50 times the diameter may be used but the initial forward twist shall be just one turn and each succeeding reversal two turns. Specimens 100 times the diameter shall withstand not less than 24 turns and specimens 50 times the diameter shall withstand not less than 12 turns.
3.4.1.4 Etching: Visual examination, at 7 to lox magnification, of surfaces of sections of wire, etched in hot hydrochloric acid (1:1) at 160 to 180 “F (71 to 82 “C)foc sufficient time to remove approximately 1% of the nominal diameter or thickness of the wire, shall show no evidence of pits, cracks, laps, injurious die marks, torn surfaces, or other imperfections detrimental to usage in springs. Coils from which defective samples are taken shall be subject to rejection; if 25% or more of the coils from a lot are rejected, the entire lot shall be rejected.
3.5 Quality:
3.5.1 Wire: Wire shall have a bright, smooth, cold-drawn finish and shall be free from seams, pits, nicks, scratches, and other imperfections detrimental to usage of the wire. A dull surface resulting from the use of a phosphate coating during drawing is acceptable.
3.5.2 All welds made on coiled or spooled wire shall be clearly and permanently marked, and the method of marking shall be specified on the cod!spool, label, or tag (See 8.5).
4.3 Sampling and Testing:
Shall be as follows: A lot of wire shall be all wire from the same heat of steel and drawn through the same sets of dies with the same processing schedule and without break in the set-up to the same nominal diameters and presented for vendors inspection at the same time.
4.3.1 Wire: Shall be In accordance with AMS 2370 and the following:
4,3.1.1 Bending and Twisting: One specimen from each coil.
4.4 Reports:
The vendor of the product shall furnish with each shipment a report showing the results of tests for composition of each heat and for tensile properties of each lot and stating that the product conforms to the other technical requirements, This report shall include the purchase order number, heat and lot numbers, AMS 5112L, size, and quantity.
4.5 Resampling and Retesting:
Shall be In accordance with AMS 2370.
5. PREPARATION FOR DELIVERY:
5.1 Identification:
Shall be as follows: Coiled or spooled wire shall be securely bundled and identified by a durable tag marked with not less than the purchase order number, AMS 5112L, heat and lot numbers, nominal size, quantity, and manufacturers identification, and attached to each coil, or shall be boxed and the box marked with the same information.
5.2 Protective Treatment:
Wire shall be protected from corrosion prior to shipment.
5.3 Packaging:
Wire shall be prepared for shipment in accordance with commercial practice and in compliance with applicable rules and regulations pertaining to the handling, packaging, and transportation of the product to ensure carrier acceptance and safe delivery.
6. ACKNOWLEDGMENT:
A vendor shall mention this specification number and its revision letter in all quotations and when acknowledging purchase orders.