API 5L X42 Line Pipe

The American Petroleum Institute specification API 5L is designed for transportation systems in the petroleum and natural gas industries for conveying gas, water, and oil. API 5L X42 is a steel grade of API 5L which specifies the manufacture of two product levels (PSL1 and PSL2) and two manufacturing types seamless and welded steel line pipe. WLD Steel also provides internal & external coating like Black paint, varnished, FBE coating, 3LPE coating and all lined pipe on steel pipes as per the customers’ requirement. WLD steel supply and manufactured a large inventory of  API 5L X42 steel pipe in PSL1 and PSL2.

API 5L X42 Equivalent Material

Specification	API 5L x42 PSL1	ISO 3183 L290
Grades	API 5L PSL2 X42Q API 5L PSL2 X42R API 5L PSL2 X42N API 5L PSL2 X42Q API 5L PSL2 X42M	ISO 3183 L290Q ISO 3183 L290R ISO 3183 L290N ISO 3183 L290Q ISO 3183 L290M

Chemical Composition for X42 PSL 1 pipe

Grades	C	Mn	P	S
X42 PSL1(Seamless)	0.26	1.30	0.03	0.03
X42 PSL1(Welded)	0.22	1.30	0.03	0.03

Chemical Composition for X52 PSL 2 pipe

Grades	C	Mn	Si	P	S
X42R PSL2(Seamless)	0.24	1.2	0.40	0.025	0.015
X42N PSL2(Seamless)	0.24	1.2	0.40	0.025	0.015
X42Q PSL2(Seamless)	0.24	1.4	0.45	0.025	0.015
X42M PSL2(Welded)	0.22	1.2	0.45	0.025	0.015

API 5L X42 Mechanical Property

Grades	Yield Strength	Tensile Strength	Elongation,%
API 5L X42	42100	60200	23

Differences between API 5L X42 PSL 1 and PSL 2

PSL	PSL1	PSL2
Charpy testing	None required	Required for all grades
Nondestructive inspection of seamless	Only when the purchaser specifies   SR4	SR4 mandatory
Certification	Certificates when specified per SR15	Certificates (SR 15.1) mandatory
Traceability	Traceable only until all tests are passed, unless SR15 is specified	Traceable after completion of tests (SR 15.2) mandatory
Hydrostatic Test	Required	Required