API 5L Grade B Pipes is a specification and grade implemented by the American Petroleum Institute for pipes to be used in petroleum, petrochemical, oil and gas industrial applications.

API 5L Grade B Pipes
Sch 80 Grade B Pipes API 5L Grade B Erw Pipes

Hi-tech Metal & Tubes is a manufacturer and supplier of these pipes in all different types, shapes and quantities. Our 5L Gr B Pipes can be seamless or welded according to the application requirement. These are used to convey hot oil and gas. Hot water lines also use these pipes. There are Grade B Seamless Pipes and welded pipes types. The welded pipes are stronger but the seamless ones are precise in dimensions. The API 5L Grade B ERW Pipes is welded on its longitudinal axis to make the pipes. There are two product specification levels in this grade as PSL1 and PSL2. The Grade B PSL1 Material has copper, nickel, chromium, manganese and carbon in its composition. These components bring the specific mechanical properties. The Grade B PSL2 has slightly higher mechanical properties and the composition is altered to get the higher mechanical properties. Our Grade B Carbon Steel Pipes is of high quality and ductility. You can contact us for any information regarding the pipes. You can also place orders for any quantity of these pipes with us.


DO YOU KNOW ??

API 5L Grade B Pipe sizes are different than welded pipe. In seamless the maximum outer diameter is 16 inch but in welded don’t have such limitations.


Standard Specification of API 5L Grade B Pipes

Seamless 1/2 Inch NB to 60 Inch NB
SAW 16 inch NB to 100 inch NB
Erw 1/2 inch NB – 24 inch NB
LSAW/DSAW 16’OD TO 54′ OD (8 MM TO 50 MM THK)
Wall Thickness Schedule 10, 20, 30, STD, 40, 60, XS, 80, 100, 120, 140, 160, XXS DIN, JIS standard thickness

Size Chart of API 5L Grade B Erw Pipes

Nominal bore Size Outside Diameter 40S 5S 10S S10 S20 S40 S60 XS/80S S80 S100 S120 S140 S160 XXS
1/8 10.29 1.2 1.73 2.41
1/4 13.72 1.7 2.24 3.02
3/8 17.15 1.7 2.31 3.2
20 3/4 26.67 2.9 1.7 2.1 2.87 3.91 3.91 5.56 7.82
25 1 33.4 3.4 1.7 2.8 3.38 4.55 4.55 6.35 9.09
15 1/2 21.34 2.8 1.7 2.1 2.77 3.73 3.73 4.78 7.47
32 1 1/4 42.16 3.6 1.7 2.8 3.56 4.85 4.85 6.35 9.7
40 1 1/2 48.26 3.7 1.7 2.8 3.68 5.08 5.08 7.14 10.2
50 2 60.33 3.9 1.7 2.8 3.91 5.54 5.54 9.74 11.1
65 2 1/2 73.03 5.2 2.1 3.1 5.16 7.01 7.01 9.53 14
80 3 88.9 5.5 2.1 3.1 5.49 7.62 7.62 11.1 15.2
100 4 114.3 6 2.1 3.1 6.02 8.56 8.56 11.1 13.5 17.1
125 5 141.3 6.6 2.8 3.4 6.55 9.53 9.53 12.7 15.9 19.1
150 6 168.3 7.1 2.8 3.4 7.11 10.97 11 14.3 18.3 22
90 3 1/2 101.6 5.7 2.1 3.1 5.74 8.08 8.08
200 8 219.1 8.2 2.8 3.8 6.4 8.18 10.3 12.7 12.7 15.1 19.3 20.6 23 22.2
250 10 273.1 9.3 3.4 4.2 6.4 9.27 12.7 12.7 15.1 19.3 21.4 25.4 28.6 25.4
350 14 355.6 9.5 4 4.8 6.4 7.9 11.1 15.1 12.7 19.1 23.8 27.8 31.8 35.7
400 16 406.4 9.5 4.2 4.8 6.4 7.9 12.7 16.7 12.7 21.4 26.2 31 36.5 40.5
300 12 323.9 9.5 4 4.6 6.4 10.3 14.3 12.7 17.5 21.4 25.4 28.6 33.3 25.4
450 18 457.2 9.5 4.2 4.8 6.4 7.9 14.3 19.1 12.7 23.8 29.4 34.9 39.7 45.2
550 22 558.8 9.5 4.8 5.5 6.4 9.5 22.2 12.7 28.6 34.9 41.3 47.6 54
600 24 609.6 9.5 5.5 6.4 6.4 9.5 17.5 24.6 12.7 31 38.9 46 52.4 59.5
650 26 660.4 9.5 7.9 13 12.7
500 20 508 9.5 4.8 5.5 6.4 9.5 15.1 20.6 12.7 26.2 32.5 38.1 44.5 50
800 32 812.8 9.5 7.9 13 17.5 12.7
700 28 711.2 9.5 7.9 13 12.7
850 34 863.6 9.5 7.9 13 17.5 12.7
900 36 914.4 9.5 7.9 13 19.1 12.7
750 30 762 9.5 6.4 7.9 7.9 13 12.7

Grade B Welded Pipes Chemical Structure

Grade

Carbon (Maximum)

Manganese (Maximum)

Phosphorus (Maximum)

sulphur (Maximum)

PSL1

0.20

0.60

0.030

0.030

PSL2

0.23

1.20

0.025

0.015