In addition to welded hydraulic tubing, SA179tubes.com produces cold drawn and annealed seamless low carbon steel pressure tubing suitable for use as hydraulic lines and in other applications requiring flexible and bendable tubing. Hoses are available in a range of 20 foot lengths to meet SAE J525 Hydraulic Tubes specifications. This material is made from .18 maximum carbon steel, which is dead soft when produced to allow for easy bending and flaring during SAE J525 hydraulic tubes fluid line applications.In order to produce mother hollows, flat sheets of raw material are rolled on a weld mill. AISI class 1008 and 1010, as well as 1020 and 1026, are available. After undergoing a normalising heat treatment, the tube is suitable for cold working
As defined in this standard, normalised electric-resistance welded, cold-drawn, single-wall, low-carbon steel pressure tubing is to be used for pressure lines, as well as for other applications that require the tubing to be flexible, capable of flaring, forming, and brazing. For SAE J525 hydraulic tubes applications and other applications that require tubing of a quality suitable for flaring and bending, SA179tubes.com stocks a large stock of SAE J525 Hydraulic Tubes welded tubing. In addition to their exceptionally clean and bright OD and ID, all our tubes are shipped with capped ends for contamination prevention and cleanliness. In addition to supplying low carbon steel pipe and tubing, SA179tubes.com is also a leading manufacturer, supplier, exporter, and distributor. The welded tubing we supply and stock is based on SAE J525 Hydraulic Tubes and is used for hydraulic parts.Tubes that are specified by their diameters (or their inner diameters) and their nominal wall thickness must have tolerances corresponding to the diameter and no thickness variation exceeding 10%.
MANUFACTURE – After normalising the tubing, a cold working operation is to be performed. In cold working, at least 8 percent of the walls need to be reduced, resulting in a minimum reduction of areas of 15 percent. Tubing shall be cold-worked in such a manner that the annealing results in a product that meets all specifications of this specification.
Based on SAE J525 Hydraulic Tubes, this chart indicates the nominal pressure ratings for tubing products. Based on Lame formula with 12,500 PSI (86MPa) stress factors and a 4:1 design factor, these pressure ratings were derived. For the wall thicknesses shown in bold, SAE J533 recommends 37 degrees of single flaring for tubing with a normal wall thickness. SAE J525 Hydraulic Tubes systems perform satisfactorily at many different pressures based on a variety of factors. The values listed below should not be construed as standards or specifications, nor as minimum requirements. SAE J525 Hydraulic Tubes Equivalent Specifications
ASTM /ASME A214 (Except for Average Wall)
* For tubes with OD of 3/8 inch and/or wall thickness of 0.035, a minimum elongation of 30 percent is permitted.
FLATTENING TEST — A section at least three inches in length shall be taken from every 1500 feet or less of finished tubing and shall be flattened between parallel plates to three times the wall thickness of the tube. The weld shall be placed at a point of 90 degrees from the direction of applied force. Any cracking or flaws revealed by this test shall be cause for rejection. Superficial ruptures resulting from minor surface imperfections shall not be cause for rejection.
REVERSE FLATTENING TEST — A section at least four inches in length shall be taken from every 1500 feet or less of finished tubing and split longitudinally 90 degrees on each side of the weld and the sample opened and flattened. There shall be no evidence of cracks or lack of penetration or overlaps resulting from flash removal in the weld.
EXPANSION TEST — A suitable specimen shall be taken from each 1500 feet or less of tubing and subjected to an expansion over a plug. The outside diameter must be expanded 25 percent throughout a length equal to the outside diameter of the tubing or one inch, whichever is greater. There shall be no evidence of cracking in this test.
PRESSURE OR ELECtrICAL TEST — Tubing supplied under this specification shall have been hydrostatically tested at a fibre stress of 20,000 psi or at an actual pressure of 5,000 psi, whichever is less, based on the applicable minimum wall, or tested by use of a nondestructive electrical test approved by purchaser.
When tubing is specified by outside diameter and inside diameter, the tolerances shown in the table shall apply.
When tubing is specified by the outside diameter (or the inside diameter) and the nominal wall thickness, the tolerances for the specified diameter shall apply and the wall thickness shall not vary more than plus or minus 10 percent.
Oman, Iran, Finland, Jordan, Ecuador, Tibet, Nigeria, Malaysia, Italy, Hong Kong, United Kingdom, Venezuela, Algeria, Namibia, Croatia, Poland, Gabon, Iran, Norway, Azerbaijan, Iraq, Mexico, Egypt, Argentina, Pakistan, Lithuania, Bhutan, Costa Rica, China, Colombia, Peru, Thailand, Ukraine, Singapore, Japan, South Korea, New Zealand, Morocco, Kenya, Belarus, Brazil, Turkey, Kazakhstan, Hungary, Germany, United States, Vietnam, Sri Lanka, Ireland, Czech Republic, India, Gambia, United Arab Emirates, Lebanon, Mongolia, Portugal, Nigeria, Bahrain, Kuwait, Yemen, Romania, Indonesia, Chile, Nepal, Ghana, Saudi Arabia, France, Taiwan, Qatar, Denmark, Austria, Afghanistan, Spain, Mexico, Belgium, Puerto Rico, Slovakia, Serbia, South Africa, Chile, Bangladesh, Libya, Greece, Russia, Switzerland, Trinidad & Tobago,Tunisia, Bulgaria, Estonia, Canada, Bolivia, Sweden, Poland, Australia, Philippines, Angola, Israel, Zimbabwe, Macau, Netherlands.
Kuwait, Bolivia, Peru, Pakistan, Brazil, Bhutan, Nepal, Canada, Kazakhstan, Trinidad & Tobago,Tunisia, Israel, Lithuania, Argentina, Belarus, Yemen, Ghana, Switzerland, Belgium, Nigeria, Gambia, Spain, Sri Lanka, Vietnam, Oman, Finland, Egypt, Mexico, Mongolia, Sweden, Norway, Morocco, Saudi Arabia, Gabon, Algeria, South Africa, Germany, Bulgaria, Iran, South Korea, Qatar, Estonia, Costa Rica, Azerbaijan, Iran, Hong Kong, United States, Greece, Russia, Iraq, Kenya, Malaysia, Taiwan, Bahrain, Netherlands, Angola, Zimbabwe, Lebanon, Tibet, Colombia, Italy, New Zealand, Philippines, Namibia, Poland, Chile, France, Romania, Serbia, Indonesia, Australia, Turkey, India, Ecuador, Slovakia, Hungary, Chile, Bangladesh, Denmark, Singapore, Czech Republic, Ireland, United Kingdom, Venezuela, Libya, Mexico, Japan, Austria, Afghanistan, Ukraine, Puerto Rico, Croatia, United Arab Emirates, Poland, Macau, Portugal, Nigeria, Thailand, China, Jordan.