Practical Data for Metallurgists - Timken

LENGTH TOLERANCES
All Conditions – Seamless Steel Tubing
Random Lengths
Tubing shipped on random-length orders has a length spread of 7
feet (2.1 meters) with a mean length 10 feet to 26 feet (3 to 8 meters)
unless otherwise specified.
Multiple Lengths
For tubing ordered in multiple lengths, it is standard practice for the
customer to make their own allowances for loss of steel due to cutting
operations. These allowances will vary from one customer to another
due to their cutting practices and the amount of facing required on the
ends of the part. Therefore, tubing is furnished to the multiple length
as specified by the individual customer.
In Inches
Specified Size
Permissible
Variations
Specified Length Outside Diameter Over Under
4 feet and under Up to 2 inches incl. 1/16 inch 0
4 feet and under Over 2 inches to
4 inches incl.
3/32 inch 0
4 feet and under Over 4 inches 1/8 inch 0
Over 4 feet to 10 feet, incl. Up to 2 inches incl. 3/32 inch 0
Over 4 feet to 10 feet, incl. Over 2 inches 1/8 inch 0
Over 10 feet to 24 feet, incl. All 3/16 inch 0
Over 24 feet to 34 feet, incl. All 5/16 inch 0
Over 34 feet to 44 feet, incl. All 7/16 inch 0
In Meters
Specified Size
Permissible
Variations
Specified Length Outside Diameter Over Under
1 meter and under Up to 50mm incl. 1mm 0
1 meter and under Over 50mm to
100mm incl.
2mm 0
1 meter and under Over 100mm 3mm 0
Over 1 meter to 3 meters Up to 50mm incl. 2mm 0
Over 1 meter to 3 meters Over 50mm 3mm 0
Over 3 meters to 7 meters All 5mm 0
Over 7 meters to 10 meters All 8mm 0
Over 10 meters to 13 meters All 11mm 0
98