This specification covers the common requirements that shall apply to wrought steel piping fittings. The material shall consist of forgings, bars, plates, and seamless or welded tubular products. Ferritic steels shall be fully killed. Hollow cylindrically shaped parts up to and including NPS 4 may be machined from bar or seamless tubular material. Elbows, return bends, tees, and header tees shall not be machined directly from bar stock. The following procedures shall be done for heat treatment: full annealing, solution annealing, isothermal annealing, normalizing, tempering and post-weld heat treatment, stress relieving, and quench and temper. Chemical analysis, heat analysis, and product analysis shall also be done. The chemical requirements shall conform to the required compositions of carbon, manganese, phosphorus, sulfur, silicon, nickel, chromium, molybdenum, vanadium, columbium, titanium, aluminum, lead, and copper. The following tests shall be done for the mechanical requirements: tension, hardness, impact, and hydrostatic tests.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This specification covers a group of common requirements that shall apply to wrought steel piping fittings covered in any of the following individual product specifications or any other ASTM specification that invokes this specification or portions thereof:
|Title of Specification||ASTM|
|Specification for Piping Fittings of Wrought|
Carbon Steel and Alloy Steel for Moderate and
|Specification for Wrought Austenitic Stainless|
Steel Piping Fittings
|Specification for Piping Fittings of Wrought Carbon|
Steel and Alloy Steel for Low-Temperature Service
|Specification for Butt-Welding, Wrought-Carbon|
Steel, Piping Fittings with Improved Notch Toughness
|Specification for As-Welded Wrought Austenitic|
Stainless Steel Fittings for General Corrosive
Service at Low and Moderate Temperatures
|Specification for Wrought Ferritic, Ferritic/Austenitic,|
and Martensitic Stainless Steel Piping Fittings
|Specification for Heat-Treated Carbon Steel|
Fittings for Low-Temperature and Corrosive Service
|Specification for Wrought High-Strength|
Low-Alloy Steel Butt-Welded Fittings
1.2 In case of conflict between a requirement of the individual product specification and a requirement of this general requirement specification, the requirements of the individual product specification shall prevail over those of this specification.
1.3 By mutual agreement between the purchaser and the supplier, additional requirements may be specified (See 4.1.8). The acceptance of any such additional requirements shall be dependent on negotiations with the supplier and must be included in the order as agreed upon by the purchaser and supplier.
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text and the tables, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the specification. The inch-pound units shall apply unless the “M” designation [SI] of the product specification is specified in the order.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A29/A29M Specification for Steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements for
A234/A234M Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service
A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A388/A388M Practice for Ultrasonic Examination of Steel Forgings
A403/A403M Specification for Wrought Austenitic Stainless Steel Piping Fittings
A420/A420M Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low-Temperature Service
A700 Practices for Packaging, Marking, and Loading Methods for Steel Products for Shipment
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
A758/A758M Specification for Wrought-Carbon Steel Butt-Welding Piping Fittings with Improved Notch Toughness
A763 Practices for Detecting Susceptibility to Intergranular Attack in Ferritic Stainless Steels
A774/A774M Specification for As-Welded Wrought Austenitic Stainless Steel Fittings for General Corrosive Service at Low and Moderate Temperatures
A815/A815M Specification for Wrought Ferritic, Ferritic/Austenitic, and Martensitic Stainless Steel Piping Fittings
A858/A858M Specification for Heat-Treated Carbon Steel Fittings for Low-Temperature and Corrosive Service
A860/A860M Specification for Wrought High-Strength Ferritic Steel Butt-Welding Fittings
A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys
A967 Specification for Chemical Passivation Treatments for Stainless Steel Parts
A1058 Test Methods for Mechanical Testing of Steel Products--Metric
E165 Practice for Liquid Penetrant Examination for General Industry
E213 Practice for Ultrasonic Testing of Metal Pipe and Tubing
E709 Guide for Magnetic Particle Testing
E1916 Guide for Identification of Mixed Lots of Metals
Manufacturers Standardization Society Standards
MSS-SP-97 Integrally Reinforced Forged Branch Outlet Fittings--Socket Welding, Threaded and Buttwelding Ends
SectionIX Welding Qualifications
austenitic stainless steel; corrosive service applications; ferritic/austenitic stainless steel; ferritic stainless steel; high strength low alloy steel; martensitic stainless steel; piping applications; pressure containing parts; pressure vessel service; stainless steel fittings; temperature service applications-elevated; temperature service applications-low; temperature service applications-moderate; Austenitic stainless steel pipe--specifications; Corrosive service applications--pipe (steel); Elevated temperature service applications--steel; General delivery requirements--steel; High-temperature service applications--steel pipe; Low-temperature service applications--steel; Pressure vessel steel pipe--specifications; Steel fittings--specifications; Wrought steel fittings--specifications;
ICS Number Code 77.140.20 (Steels of high quality); 23.040.40 (Metal fittings)
ASTM International is a member of CrossRef.
Citing ASTM Standards
[Back to Top]