ASME B18.31.3-2014 pdf download

ASME B18.31.3-2014 pdf download.Threaded Rods.
ASTM A307, Standard Specification for Carbon Steel Bolts, Studs, and Threaded Rod 60 000 PSI Tensile Strength
ASTM A354, Standard Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and OLher Externally Threaded Fasteners
ASTM A449, Standard Specification for Hex Cap Screws, Bolts and Studs, Steel, Heat Treated, 120/105/90 ksi Minimum Tensile Strength, General Use
ASTM F468, Standard Specification for Nonferrous Bolts, Hex Cap Screws, Socket Head Cap Screws, and Studs for General Use
ASTM F593, Standard Specification for Stainless Steel Bolts, Hex Cap Screws, and Studs
ASTM F788/F788M, Standard Specification for Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series
ASTM F1470, Standard Practice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection
ASTM F1554, Standard Specification for Anchor Bolts, Steel, 36, 55, and 105-ksi Yield Strength
ASTM F1941, Standard Specification for Electrodeposited Coatings on Threaded Fasteners (Unified Inch Screw Threads (UN/ UNR))
ASTM F2329, Standard Specification for Zinc Coating,
Hot-Dip, Requirenwnts for Application to Carbon and
Alloy Steel Bolts, Screws, Washers, Nuts, and Special
Threaded Fasteners
Publisher: American Society for Testing and Materials
(ASTM International), 100 Barr Harbor Drive,
P.O. Box C700, West Conshohocken, PA 19428-2959
(www.astm.org)
SAE J429, Mechanical and Material Requirements for Externally Threaded Fasteners
Publisher: SAE International, 400 Commonwealth Drive, Warrendale, PA 15096 (www.sae.org)
2 GENERAL DATA
2.1 Length
Threaded rods are commonly produced in, hut not limited to, 3-ft, 6-fL, 10-fl, and 12-ft lengths. The length of the threaded rod shall be measured, overall, from end to end. The length tolerance on all threaded rods in nominal lengths of 6 ft and longer shall be ± in., and ±‘. in. for nominal lengths less than 6 ft. See Fig. 1.
2.2 Threads
Unified threads shall conform to the requirements of ASME Bl.1. For UNC and UNF threads, Class 1A will 1w furnished unless otherwise specified. (lass 2A shall
1w applicable for 8UN threads and at the manufacturer’s option for other series, and for sizes where Class 1A is not applicable. Plated threads shall conform to ASME B1.l, Class 3A high limit (basic) and the low limit requirement of the before-coated or plated thread class.
Acme threads shall meet the requirements of ASME BI.5, Class 2G.
Table 1 contains the thread diameter and threads per inch combinations for Unified and Acme thread sizes considered standard.
2.3 Thread Acceptance Gaging
Unless otherwise specified by the purchaser, gaging for screw thread dimensional acceptahffity shall be in accordance with Gaging System 2I as specified in
ASME B1.3.
2.4 Ends
The ends shall he of sufficient workmanship to allow for easy assembly with an appropriate mating nut.
2.5 Straightness
When required, straightness limits and the inspection technique to be used to evaluate straightness shall be agreed upon between the purchaser and the supplier.
2.6 Materials and Mechanical Requirements
The purchaser must specify the applicable specification for the threaded rod material. The material shall meet the chemical and mechanical properties of the applicable specification. Listed below are some of the primary material specifications for threaded rod. Other materials may he specified by the purchaser.
2.6.1 Steel Threaded Rod
2.6.1.1 Steel. The designation “steel” means low- carbon steel meeting all of the material and mechanical requirements of ASTM A307, Grade A.
2.6.1.2 Grade 36. The designation “Grade 36” means steel material meeting all of the material and.