⑴
Technical Specifications
★ Size Range: 1/2 inch~24 inch (21.3~610mm).
★ Wall Thickness: 0.5~16mm.
★ Requirement: API 5L, ASTM A53, GB/T9711.1, GB/T3091.
★ Steel Grade: GR.A, GR.B, X42, X46, X52, X56, X60, X65, X70.
★ End surface: Plain end, bevel end, thread, coupling, plastic cap.
★ Pipe finish: Black vanish, bare, clear oil.
⑵
API 5L STANDARD
Specifications |
Range |
Out Diameter |
1/8 inch to 24 inch |
Wall Thickness |
max 26.5mm |
Length |
3.0m-18m |
★
Tolerance of Outside Diameter
Standard |
Out Diameter |
Tolerance of Pipe End |
Tolerance of Pipe Body |
API 5L |
219.1~273.1 |
+1.6mm, -0.4mm |
±0.75% |
274.0~320 |
+2.4mm, -0.8mm |
±0.75% |
323.9~457 |
+2.4mm, -0.8mm |
±0.75% |
508 |
+2.4mm, -0.8mm |
±0.75% |
559~610 |
+2.4mm, -0.8mm |
±0.75% |
★
Tolerance of Wall Thickness
Standard |
Grade |
Out Diameter |
Wall Thickness |
API 5L |
A |
219.1~457 |
+15%, -12.5% |
B |
508~610 |
+17.5%, -12.5% |
X42-X80 |
508~610 |
+19.5%, -8% |
★
Chemical Analysis and Mechanical Properties
Standard |
Class |
Grade |
Chemical Analysis(%) |
Mechanical Properties(min)(Mpa) |
C |
Mn |
P |
S |
Tensile Strength |
Yield Strength |
API 5L |
PSL1 |
B |
0.26 |
1.20 |
0.030 |
0.030 |
414 |
241 |
X42 |
0.26 |
1.30 |
0.030 |
0.030 |
414 |
290 |
X46 |
0.26 |
1.40 |
0.030 |
0.030 |
434 |
317 |
X52 |
0.26 |
1.40 |
0.030 |
0.030 |
455 |
359 |
X56 |
0.26 |
1.40 |
0.030 |
0.030 |
490 |
386 |
X60 |
0.26 |
1.40 |
0.030 |
0.030 |
517 |
414 |
X65 |
0.26 |
1.45 |
0.030 |
0.030 |
531 |
448 |
X70 |
0.26 |
1.65 |
0.030 |
0.030 |
565 |
483 |
PSL2 |
B |
0.22 |
1.20 |
0.025 |
0.015 |
414 |
241 |
X42 |
0.22 |
1.30 |
0.025 |
0.015 |
414 |
290 |
X46 |
0.22 |
1.40 |
0.025 |
0.015 |
434 |
317 |
X52 |
0.22 |
1.40 |
0.025 |
0.015 |
455 |
359 |
X56 |
0.22 |
1.40 |
0.025 |
0.015 |
490 |
386 |
X60 |
0.22 |
1.40 |
0.025 |
0.015 |
517 |
414 |
X65 |
0.22 |
1.45 |
0.025 |
0.015 |
531 |
448 |
X70 |
0.22 |
1.65 |
0.025 |
0.015 |
565 |
483 |
X80 |
0.22 |
1.85 |
0.025 |
0.015 |
621 |
552 |