Specifications: diameter: 320 to 127 mm thickness: 0.4 to 12.7 mm Length: 6 m above, and, in accordance with customer demand, supply and other specifications of steel pipe
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Seamless And Welded Carbon Steel Pipe Data Diameter Toleranc


Carbon Steel Pipe Data-Diameter Tolerances - Seamless And Welded

Seamless And Welded Carbon Steel Pipe

The information and data presented herein are typical or average values and are not a guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either express or implied, of fitness for these or other purposes.

Nominal Pipe Size Inches Outside Diameter Tolerances-Inches Or Percent of O.D.
A120(1) A53 A106 API-5L
Plus Minus Plus Minus Plus Minus Plus Minus
1/8- 11/2 IPS O.15" .031" .015" .031" .015" .031" .015" .031"
2-4 IPS 1% 1% 1% 1% .031" .031" 1% 1%
5-8 IPS 1% 1% 1% 1% .062" .031" .75% .75%
10 IPS-18 OD 1% 1% 1% 1% .093"(2) .031"(2) .75% .75%
20 OD-26 OD l% 1% 1% 1% .125"(2) .031"(2) 1% 1%
(1)Specification A120 has been discontinued. (2)Some mills may require ± 1% of nominal O.D. for sizes over 10í IPS in heavy walls of A 106 pipe.

Wall Tolerances - Seamless

Nominal Pipe Size Inches Outside Diameter Tolerances-Inches Or Percent of O.D.
A120(1) A53 A106 API-5L
Plus Minus Plus Minus Plus Minus Plus Minus
1/8- 21/2 IPS By Wt. 12.5 By Wt. 12.5 By Wt. 12.5 20.0 12.5
3 IPS By Wt. 12.5 By Wt. 12.5 By Wi. 12.5 18.0 12.5
31/2 IPS-26 OD By Wt. 12.5 By Wt. 12.5(2) By Wt. 12.5(2) 15.0 12.5
(1)Specification A120 has been discontinued. (2) Some mills may require ± 12.5% of nominal wall for sizes over 10" IPS in heavy walls of A53 & A106 pipe.

Wall Tolerances - Welded

Nominal Pipe Size Inches Outside Diameter Tolerances-Inches Or Percent of O.D.
A120(1) A53 A106 API-5L
Plus Minus Plus Minus Plus Minus Plus Minus
1/8- 21/2 IPS By Wt. 12.5 By Wt. 12.5 Available Only As
Seamless Pipe		 20.0 12.5
3 IPS By Wt. 12.5 By Wt. 12.5 18.0 12.5
31/2 IPS-18 OD By Wt. 12.5 By Wt. 12.5 15.0 12.5
20 OD-26 OD By Wt. 12.5 By Wt. 12.5 17.5 10.0
(1) Specification A120 had been discontinued.

Weight Tolerances - Seamless & Welded

Nominal Pipe Size Inches Outside Diameter Tolerances-Inches Or Percent of O.D.
A120(1) A53 A106 API-5L
Plus Minus Plus Minus Plus Minus Plus Minus
Standard 10 10 10 10 10 3.5 10 3.5
Extra Strong 10 10 10 10 10 3.5 10 3.5
Dble Extra Strong 10 10 10 10 10 3.5 10 3.5
(1)Specification A120 has been discontinued. (2)Pipe 4" & under is weighted in conventional lifts, over 4" in individual lengths.

Typical Properties

Grade Designation Chemistry Tensile KSI Yield KSI Elong. Percent In 2"
C Mn P S Si
A1068 Smls. .30 max .29-1.06 .048 max .058 max .10 min 60 min 35 min 30 min
A53B Smls. .30 max 1.20 max .05 max .06 max - 60 mm 35 mm 30 min
SLB Smls. .27 max 1.15 max .04 max .05 max - 60 min 35 min 30 min
A120 Weld. No Values Specified No Values Specified

 

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