COPPER TUBE AND FITTING
We give below the specification to be followed for the various tunings for use with ELCON Double Ferrule Compression Fitting.
Soft , annealed carbon steel hydraulic tubing to ASTM A 179, Din 2391 or equivalent based on ultimate tensile strength of 47000 psi and for metal temperatures not to exceed 20 deg C to 100 deg C. For higher temperature service, reducing factors for elevated temperature operation as specified in table 302.3 1A and 304.1.2 of the code for pressure piping in ANSI B 31.3 should be applied. The hardness of the tube is recommended to RB 7xThe hardness of the tube is recommended to RB 72 OR less. The Tubes should be suitable for bending and flaring and free of surface defects and imperfections
Annealed 304 or 316 Stainless Steel tubing to ASTM A 269 or A 213 or equivalent based on ultimate tensile strength of 75,000 psi and suitable for temperatures 20deg C to 100 deg C.The hardness of these tubes is not to exceed RB 80 and is preferred in the range RB 70 – 74.Tubes to be suitable for bending and flaring and should be free o0f surface defact and imperfections.
Annealed 304 or 316 Stainless copper tubing to ASTM B 75 or ASTM B 88 based on an ultimate tensile strength of 30,000 psi and for a temperature in the range of 20 deg C to 80 deg C Maximum hardness of the tube not to exceed RB 50. Tubes preferred in the range RB 40-45
Fully annealed Monel 400 seamless tubing conforming ASTM B165 or equvaient and based on dftimata tensile strength of 70.000 psi and for use with temperatures 20 deg C to 90 deg C.Hardness of the tube must be RB 75 maximum and is preferred in the range RB 68 – 72These tubes should be suitable for blending and flaring and free from all surface defects and imperfections