This specification covers sub-critically annealed electric resistance welded and cold-drawn single-wall high strength low alloy steel tubing intended for use in hydraulic pressure lines and in other applications requiring tubing of a quality suitable for bending, flaring, cold forming, welding and brazing. The grade of material produced to this specification is of micro-alloy content and is considerably stronger and intended to service higher pressure applications than like sizes of the grades of material specified in SAE J 525 and SAE J 2467. Due to the alloy content of the material, the forming characteristics of the finished tube are equal to or better, when compared to SAE J 525 and SAE J 2467. Nominal reference working pressures for this tubing are listed in ISO 10763 for metric tubing and SAE J 1065 fo rinch tubing. CAUTION: when brazing or welding is used as a tube end joining method, the structural integrity of the tube material can potentially be compromised due to the degradation of the areas affected by the thermal effect applied to the tubing; therefore, the ISO 10763 and SAE J 1065 nominal reference working pressures may not be applicable. Brazed and/or welded tube assembly configurations made to specific geometry and components bill of material in association with this material, may require qualification testing in accordancd with ISO 19879 Test Methods for Hydraulic Fluid Power Connections. Cold forming the tube end configurations avoids this systemic testing by not compromising the tube material structural integrity.
SAE J2614-2009 Referenced Document
ASTM A513-08 Standard Specification for Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing*， 2024-04-19 Update
EN 10305-2:2002 Steel tubes for precision applications Technical delivery conditions Part 2: Welded cold drawn tubes*， 2024-04-19 Update
EN 10305-3:2002 Steel tubes for precision applications Technical delivery conditions Part 3: Welded cold sized tubes*， 2024-04-19 Update
EN 10305-4:2003 Steel tubes for precision applications - Technical delivery conditions - Part 4: Seamless cold drawn tubes for hydraulic and pneumatic power systems
EN 10305-6:2005 Steel tubes for precision applications - Technical delivery conditions - Part 6: Welded cold drawn tubes for hydraulic and pneumatic power systems
ISO 10583:1993 Aerospace fluid systems; test methods for tube/fitting assemblies
ISO 3304:1985 Plain end seamless precision steel tubes; Technical conditions for delivery
ISO 3305:1985 Plain end welded precision steel tubes; Technical conditions for delivery
ISO 4200:1991 Plain end steel tubes, welded and seamless; general tables of dimensions and masses per unit length
ISO 4397:1993 Fluid power systems and components; connectors and associated components; nominal outside diameters of tubes and nominal inside diameters of hoses
ISO 4399:1995 Fluid power systems and components - Connectors and associated components - Nominal pressures
ISO 5598:2008 Fluid power systems and components - Vocabulary
ISO 6162:1994 Hydraulic fluid power; four-screw split-flange connections for use at pressures of 2,5 MPa to 40 MPa (25 bar to 400 bar); type I metric series and type II inch series
ISO 6164:1994 Hydraulic fluid power; four-srew, one-piece square-flange connections for use at pressures of 25 MPa and 40 MPa (250 bar and 400 bar)
ISO 6605:2002 Hydraulic fluid power - Hoses and hose assemblies - Test methods
ISO 8434:1986 Hydraulic fluid power; Connection for tubes and hoses; Dimensions and designs for 37 degrees flare and 24 degrees flareless fittings
SAE J2614-2009 history
2018SAE J2614-2018 Welded and Cold-Drawn, High Strength Low Alloy Steel Hydraulic Tubing, Sub-Critically Annealed for Bending and Flaring
2009SAE J2614-2009 Welded and Cold-Drawn, High Strength (500 MPa Tensile Strength) Low Alloy Steel Hydraulic Tubing, Sub-Critically Annealed for Bending and Flaring
2003SAE J2614-2003 Welded and Cold-Drawn, High Strength Low Alloy Steel Hydraulic Tubing, Sub-Critically Annealed for Bending and Flaring