Overview of the Myanmar-China Oil & Gas Pipelines

API 5CT L80 casing Tubing grade Color Codes
Grade	Grade Type	Number and Color of Bands for product a with Length ³ 1.8 m	Color(s) for couplings
			Entire coupling	Band(s) b, c
1	2	3	4	5
H40	—	None or black band at the manufacturer’s option	None	Same as for Pipe
J55 tubing	—	One bright green	Bright green	None
J55 Casing	—	One bright green	Bright green	One white
K55	—	Two bright green	Bright green	None
N80	1	One red	Red	None
N80	Q	One red, one bright green	Red	Green
R95	—	One brown	Brown	None
L80	1	One red, one brown	Red	One brown
L80	9Cr	One red, one brown, two yellow	None	Two yellow
L80	13Cr	One red, one brown, one yellow	None	One yellow
C90	1	One purple	Purple	None
T95	1	One silver	Silver	None
C110	—	One white, two brown	White	Two brown
P110	—	One white	White	None
Q125	1	One orange	Orange	None
a In the case of coupling Material, unless otherwise specified in the purchase agreement, the manufacturer’s internal requirements shall govern.
b special clearance couplings shall also have a black band.
c Seal-ring couplings shall also have a blue band.

Products