API SPEC 5L---------American Petroleum Institute standard
Outer diameter: 4"(114.3mm)~36"(914.4mm)
Wall thickness: Sch10~SCH160
Length: Random length, fixed length, SRL, DRL.
Grade A, Grade B, X42, X46, X52, X56, X60, X70
Ch
emical Composition of API 5L seamless steel tube:
Standard |
Steel grade |
Chemical composition (%) |
C |
Mn |
P |
S |
Si |
V |
Nb |
Ti |
CEpcm |
API 5L
PSL1 |
Gr.A |
≤0.22 |
≤0.9 |
≤0.03 |
≤0.03 |
/ |
/ |
/ |
/ |
≤0.25 |
Gr.B |
≤0.28 |
≤1.2 |
≤0.03 |
≤0.03 |
/ |
/ |
/ |
/ |
≤0.25 |
X42 |
≤0.28 |
≤1.3 |
≤0.03 |
≤0.03 |
/ |
/ |
/ |
/ |
≤0.25 |
X46 |
≤0.28 |
≤1.4 |
≤0.03 |
≤0.03 |
/ |
/ |
/ |
/ |
≤0.25 |
X52 |
≤0.28 |
≤1.4 |
≤0.03 |
≤0.03 |
/ |
/ |
/ |
/ |
≤0.25 |
|
≤0.28 |
≤1.4 |
≤0.03 |
≤0.03 |
/ |
/ |
/ |
/ |
≤0.25 |
|
≤0.28 |
≤1.4 |
≤0.03 |
≤0.03 |
/ |
/ |
/ |
/ |
≤0.25 |
Mechanical Properties API 5L seamless steel tube:
Standard |
Steel grade |
Yield strength(min) Mpa |
Tensile strength (min) Mpa |
API 5L PSL1 |
Gr.A |
210 |
335 |
Gr.B |
245 |
415 |
X42 |
290 |
415 |
X46 |
320 |
435 |
X52 |
360 |
460 |
X56 |
390 |
490 |
X60 |
415 |
520 |