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SAE J514 JIC fittings pressure rating

Date:Jun 09, 2019

SAE J514 JIC fittings pressure rating is the same to standard of ISO 8434-2 pressure rating, because SAE J514 and ISO 8434-2 has the same dimensions and specifications for tube fittings.


Working pressures for JIC 37° flared connections


Tube outside diameter (OD)  a Wall thickness of tube for flaring  b  Working pressure c

Metric  Inch  Metric tube  Inch tube Carbon steel and stainless steel Copper alloy  d

mm  in  mm  mm  MPa  (bar)  e MPa  (bar)  e

6  1/4  1,5  1,65  35  (350)  20  (200)

8  5/16  1,5  1,65  35  (350)  20  (200)

10  3/8  1,5  1,65  35  (350)  16  (160)

12  1/2  2  2,1  31  (310)  16  (160)

16  5/8  2,5  2,41  24  (240)  12,5  (125)

20  3/4  3  2,76  24  (240)  12,5  (125)

25  1  3  3,05  21  (210)  10  (100)

30 and 32  1 1/4  3  3,05  17  (170)  8  (80)

38  1 1/2  3  3,05  14  (140)  6,3  (63)

50  2  3,5  3,4  10,5  (105)  5  (50)


a Metric tubing shall be preferred.

b Maximum wall thickness that can be flared, due to connector design.

c For working pressure applications higher than those given in this table, the manufacturer shall be consulted.

d The pressure values for copper alloy connectors and tubes were produced using brass connectors with phosphorescent soft annealed copper tubing.

e 1 bar = 10 5 N/m 2 = 10 5 Pa = 0,1 MPa.


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