1、Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any data that may improve this document should be sent to: STDZNMGTdla.mil or Defense Logistics Agency Aviation VEB, 8000 Jefferson Davis Highway, Richmond, VA 23297-5616. Since contact information can change, you m
2、ay want to verify the currency of this address information using the ASSIST database at https:/assist.daps.dla.mil/. AMSC N/A FSC 4010 INCH-POUND RR-C-271F 5 July 2011 SUPERSEDING RR-C-271E 23 December 2010 FEDERAL SPECIFICATION CHAINS AND ATTACHMENTS, CARBON AND ALLOY STEEL The General Services Adm
3、inistration has authorized the use of this federal specification by all federal agencies. 1. SCOPE AND CLASSIFICATION 1.1 Scope. This specification covers carbon and alloy steel chain of commercial quality together with the attachments most commonly used with this chain. 1.1.1 Federal specification
4、coverage. Federal specifications do not include all types, grades, classes, and styles of the commodities indicated by the title of the specification, or which are commercially available, but are intended to cover the types that are suitable for Federal Government requirements. 1.2 Classification. T
5、he welded and weldless chain and attachments are of the following types, classes, and styles as specified below. 1.2.1 Chain types. The types, classes, and styles of welded and weldless chain are as follows (see 6.2): Type I - Chain, welded steel Class 1 - Alloy chain (overhead lift) Class 2 - High-
6、test chain Class 3 - Transport chain Class 4 - Proof-coil chain Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-RR-C-271F 2 Class 5 - Twist-link chain Style 1 - Long-link pattern (coil) Style 2 - Short-link pattern (machine) Type II - Chain, weldless
7、 (forged and casting) Class 1 - Single-loop pattern chain Class 2 - Double-loop pattern chain Class 3 - Sash chain Class 4 - Flat-link chain Class 5 - Bead chain Class 6 - Plumbers chain Class 7 - Single-jack chain Class 8 - Double-jack chain Class 9 - Ladder chain Class 10 - Register chain Class 11
8、 - Mechanical communication chain 1.2.2 Attachment types. Attachment types, grades, and classes are as follows (see 6.2): Type II - Connecting links Type III - Repair or end lap links Type IVA - Anchor shackles Grade A - Regular Class 1 - Round pin and cotter Class 2 - Screw pin Class 3 - Bolt, nut
9、and cotter Grade B - High strength Class 1 - Round pin and cotter Class 2 - Screw pin Class 3 - Bolt, nut and cotter Type IVB - Chain shackles Grade A - Regular Class 1 - Round pin and cotter Class 2 - Screw pin Class 3 - Bolt, nut and cotter Provided by IHSNot for ResaleNo reproduction or networkin
10、g permitted without license from IHS-,-,-RR-C-271F 3 Grade B - High strength Class 1 - Round pin and cotter Class 2 - Screw pin Class 3 - Bolt, nut and cotter Type V - Hooks Class 1 - Eye slip hooks Class 2 - Eye grab hooks Class 3 - Eye hoist or sling hooks Class 6 - Eye barrel hooks Type VI - Ring
11、s Type VII - Swivels Class 1 - Chain swivels Class 2 - Eye and eye swivels Class 3 - Jaw and eye swivels Type IX - Bead chain fasteners Type X - Bead chain couplings Type XI - Bead chain insulating couplings Type XIII - Pear-shaped links Type XIV - Mechanical coupling links Type XV - End links Type
12、XVI - Chain master links 2. APPLICABLE DOCUMENTS 2.1 Government publications. The issues of the following documents, in effect on the date of invitation for bids or request for proposal, form a part of this specification to the extent specified herein. Federal Standards FED-STD-H28 - Screw-Thread St
13、andards for Federal Services FED-STD-123 - Marking for Shipment (Civil Agencies) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-RR-C-271F 4 (Activities outside the federal government may obtain copies of federal specifications, standards, and commer
14、cial item descriptions as specified in the General Information section of the Index of Federal Specifications, Standards and Commercial Item Descriptions. The index is for sale on a subscription basis from the General Services Administration, Federal Supply Service, Specification Section, East 470 L
15、Enfant Plaza SW, Suite 8100, Washington, DC 20407.) (Single copies of this specification, and other federal specifications, standards, and commercial item descriptions required by activities outside the federal government for bidding purposes are available without charge from the General Services Ad
16、ministration, Federal Supply Service, Specification Section, East 470 LEnfant Plaza SW, Suite 8100, Washington, DC 20407.) (Federal government activities may obtain copies of federal standardization documents and the Index of Federal Specifications, Standards and Commercial Item Descriptions from es
17、tablished distribution points in their agencies. Electronic copies may be obtained from https:/assist.daps.dla.mil/.) Military Standard MIL-STD-2073-1 - Standard Practice for Military Packaging (Copies of military specifications, standards, and handbooks required by contractors in connection with sp
18、ecific procurement functions are available from the Standardization Document Order Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094. Electronic copies may be obtained from https:/assist.daps.dla.mil/.) Federal Acquisition Regulation (FAR) Subpart 23.4 - Use of Recovered Materials a
19、nd Biobased Products (The FAR is for sale on a subscription basis from the Superintendent of Documents, P.O. Box 371954, Pittsburgh, PA 15250-7954. When indicated, reprints of certain regulations may be obtained from the federal agency responsible for issuing them. Electronic copies may be obtained
20、from https:/www.acquisition.gov/far/.) 2.2 Other publications. The following documents form a part of this specification to the extent specified herein. Unless a specific issue is identified, the issue in effect on the date of invitation for bids or request for proposal shall apply. American Society
21、 for Quality (ASQ) ASQ Z1.4 - Sampling Procedures and Tables for Inspection by Attributes (Copies of this document are available online at http:/www.asq.org/ or from American Society of Quality, 600 North Plankinton Avenue, Milwaukee, WI 53203.) Provided by IHSNot for ResaleNo reproduction or networ
22、king permitted without license from IHS-,-,-RR-C-271F 5 ASTM International ASTM A143/A143M - Standard Practice for Safeguarding Against Embrittlement of Hot-Dip Galvanized Structural Steel Products and Procedure for Detecting Embrittlement ASTM A153/A153M - Standard Specification for Zinc Coating (H
23、ot-Dip) on Iron and Steel Hardware ASTM A304 - Standard Specification for Carbon and Alloy Steel Bars Subject to End-Quench Hardenability Requirements ASTM A322 - Standard Specification for Steel Bars, Alloy, Standard Grades ASTM A391/A391M - Standard Specification for Grade 80 Alloy Steel Chain AST
24、M A413/A413M - Standard Specification for Carbon Steel Chain ASTM A466/A466M - Standard Specification for Weldless Chain ASTM A467/A467M - Standard Specification for Machine and Coil Chain ASTM A510 - Standard Specification for General Requirements for Wire Rods and Coarse Round Wire, Carbon Steel A
25、STM A576 - Standard Specification for Steel Bars, Carbon, Hot- Wrought, Special Quality ASTM A752 - Standard Specification for General Requirements for Wire Rods and Coarse Round Wire, Alloy Steel ASTM A909/A909M - Standard Specification for Steel Forgings, Microalloy, for General Industrial Use AST
26、M A920/A920M - Standard Specification for Steel Bars, Microalloy, Hot-Wrought, Special Quality, Mechanical Properties ASTM A921/A921M - Standard Specification for Steel Bars, Microalloy, Hot-Wrought, Special Quality, for Subsequent Hot Forging ASTM A952/A952M - Standard Specification for Forged Grad
27、e 80 and Grade 100 Steel Lifting Components and Welded Attachment Links ASTM A973/A973M - Standard Specification for Grade 100 Alloy Steel Chain ASTM B633 - Standard Specification for Electrodeposited Coatings of Zinc on Iron and Steel ASTM B695 - Standard Specification for Coatings of Zinc Mechanic
28、ally Deposited on Iron and Steel ASTM D3951 - Standard Practice for Commercial PackagingProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-RR-C-271F 6 (Application for copies should be addressed to ASTM International, 100 Barr Harbor Drive, P.O. Box C70
29、0, West Conshohocken, PA 19428-2959. Electronic copies may be obtained from http:/www.astm.org/.) 2.3 Order of precedence. Unless otherwise noted herein or in the contract, in the event of a conflict between the text of this document and the references cited herein, the text of this document takes p
30、recedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Material. 3.1.1 Type I chain, and various types of attachments, as indicated. 3.1.1.1 General. Unless otherwise specified, the material for type
31、 I chain and the indicated attachments and attachment parts shall conform to the chemical composition shown in table I. TABLE I. Chemical composition. Element Maximum percent Type I chain and type II, III, V, VI, VII, XIII, XIV, and XV attachments and attachment parts: Carbon Phosphorus Sulfur Silic
32、on 0.3710.05 0.05 0.35 Type IV shackles and type VII swivels: Carbon Phosphorus Sulfur Silicon 0.45 0.04 0.045 0.35 1 Steel with carbon 0.50 (maximum percent) is permitted for attachments or attachment parts (types II, III, V, VI, and VII) provided the fabrication is done without welding. 3.1.1.2 Ty
33、pe I Steel. 3.1.1.2.1 Type I, class 1 alloy chain; type V, class 1, 2, 3, and 6 hooks; type VI rings; type XIII pear-shaped links; type XIV mechanical coupling links; and type XVI chain master links. Unless otherwise specified, type I, class 1 alloy chain; type V, class 1, 2, 3, and 6 hooks; type VI
34、 rings; type XIII pear-shaped links; type XIV mechanical coupling links; and type XVI chain master links material shall be an alloy steel made in accordance with ASTM A322, ASTM A304, or ASTM A752. The chain and attachments shall be heat-treated, as required, to produce the physical requirements as
35、specified. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-RR-C-271F 7 3.1.1.2.2 Type I, class 2, high-test chain; and class 3 transport chain. Type I, class 2 high-test chain; and class 3 transport chain material shall be carbon steel made in accord
36、ance with ASTM A576 or ASTM A510. The chain shall be heat treated, as required, to produce the physical requirements specified. 3.1.1.2.3 Type I, classes 4 and 5, chain; type II, connecting links; type III, repair or end lap links; type VII, swivels; and type XV, end links. Type I, classes 4 and 5 c
37、hain; type II connecting links; type III repair or end lap links; type VII swivels; and type XV end links material shall be carbon steel made in accordance with ASTM A576 or ASTM A510. The chain and attachments shall be heat treated, as required, to produce the physical requirements specified. 3.1.1
38、.2.4 Type IVA anchor shackles and type IVB chain shackles. Type IVA and type IVB, grade A shackles shall be made of carbon steel conforming to ASTM A576, ASTM A920/A920M, ASTM A909/A909M, or ASTM A921/A921M. Type IVA and type IVB, grade B shackles shall be made of alloy steel conforming to ASTM A322
39、. The limitation in the chemical composition shall be as specified in table I. 3.1.2 Type II, classes 1, 2, 3, 4, 7, 8, 9, and 10 chain, weldless. Classes 1, 2, 3, 4, 7, 8, 9, and 10 shall be made of steel, bronze, or brass, as specified (see 6.2). Class 6 shall be made of steel, brass, or aluminum,
40、 as specified (see 6.2). Class 11 shall be made of brass. 3.1.3 Type II, class 5 bead chain; type IX bead-chain fasteners; type X bead-chain couplings; and type XI bead-chain insulating couplings. Type II, class 5 bead chain; type IX bead-chain fasteners; and type X bead-chain couplings shall be mad
41、e of steel, corrosion resistant steel (CRES), or brass as specified (see 6.2). Type XI bead-chain insulating couplings shall have a hard fiber dielectric body fitted at each end with a metal cap made of steel, CRES, or brass as specified (see 6.2). 3.1.4 Recovered materials. The offeror/contractor i
42、s encouraged to use recovered materials to the maximum extent practicable, in accordance with paragraph 23.403 of the Federal Acquisition Regulation (FAR). 3.2 Finish. 3.2.1 General. The finish for chain and attachments shall be as specified (see 6.2). The following finishes for chain and attachment
43、s are typical. (a) Self-colored (chain uncoated, attachments cleaned and uncoated) (b) Bright finish (chain cleaned) (c) Zinc-coated (d) Painted 3.2.1.1 Type I, chain, welded steel. Unless otherwise specified (see 6.2), the finish for type I, class 2, 3, 4, and 5 shall be self-colored, bright finish
44、, zinc coated or painted. The finish for type I, class 1 shall be bright finish or painted. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-RR-C-271F 8 3.2.1.2 Type II, chain, weldless. Unless otherwise specified (see 6.2), the chain shall be zinc co
45、ated or self-colored. 3.2.1.3 Attachments. Unless otherwise specified (see 6.2), attachments shall be self-colored, painted or zinc coated. 3.2.1.4 Zinc coating. When zinc coating is specified, the coating may be applied by the hot-dip (galvanizing) process, by the electrodeposition process, or by t
46、he mechanically deposited coating process at the contractors option. If the hot-dip process is used, the coating shall be applied in accordance with ASTM A153/A153M, class B3; if the electrodeposition process is used, it shall be in accordance with ASTM B633, type II, class Fe/Zn 12; and if the mech
47、anically deposited coating process is used, it shall be in accordance with ASTM B695, type II, class 12. When the electrodeposition process is used, the coating shall be done on screw parts after threading and tapping is completed. When the hot-dip process is used, internal threads may be tapped or
48、retapped after galvanizing. Zinc coating shall be adherent, smooth, and free from injurious defects. 3.2.1.4.1 Embrittlement. When zinc coating of alloy steel is specified, the safeguarding against embrittlement and the procedure for detecting embrittlement shall be in accordance with ASTM A143/A143
49、M. 3.3 Detail requirements - chain. 3.3.1 Type I, chain, welded steel. 3.3.1.1 Type I, class 1, welded steel alloy chain. The steel alloy chain shall be similar to figure 1 and shall be in accordance with ASTM A391/A391M or ASTM A973/A973M. The figures herein are descriptive, not restrictive, and are not intended to preclude the purchase of chain and attachments otherwise in accorda
