15

Medium-weight threaded steel tubes - EN 10255/DIN 2440Application: air, water, non-aggressive gas and uid transportation.

Pipe dimensions and weight

Nominal size, DN Outside diameter, mm Wall thickness, mm Weight per meter, kg/m15 21.3 2.65 1.2220 26.9 2.65 1.5825 33.7 3.25 2.4432 42.4 3.25 3.1440 48.3 3.25 3.6150 60.3 3.65 5.1065 76.1 3.65 6.5180 88.9 4.05 8.47

100 114.3 4.5 12.1

Tolerances

Nominal outside diameter, mm

Outside diameter, mmWall thickness permissible deviation, %

Maximum Minimum21.3 21.8 21.0

-12.5 (for areas of the pipe of length less than 2Ddeviation of minus 15% is acceptable).Positive deviation is limited by weight of the pipe

26.9 27.3 26.533.7 34.2 33.342.4 42.9 42.048.3 48.8 47.960.3 60.8 59.776.1 76.6 75.388.9 89.5 88.0

114.3 115.0 113.1

Mechanical properties of steel

Steel Grade Wall thickness,mmTensile strength,N/mm (Mpa)

Yield strength, N/mm not less than

Elongation,%, not less than

S185Less than 3 310-540 (31.6-55.1)

185 (18.9)14

3 and above 290 (29.6) and above 18

Heavy-weight threaded steel tubes - EN 10255/DIN 2441Pipe dimensions and weight

Nominal size, DN Outside diameter, mm Wall thickness, mm Weight per meter, kg32 42.4 4.05 3.8440 48.3 4.05 4.4350 60.3 4.50 6.1765 76.1 4.50 7.9080 88.9 4.85 10.1

100 114.3 5.40 14.4

Tolerances

Nominal outsidediameter, mm

Outside diameter, mmPermissible deviation for wall thickness, %

Maximum Minimum42.4 42.9 42.0

-12.5 (for areas of the pi pe with length less than 2Ddeviation of minus 15% is acceptable).Positive deviation is limited bypi pe weight

48.3 48.8 47.960.3 60.8 59.776.1 76.6 75.388.9 89.5 88.0

114.3 115.0 113.1

Mechanical properties of steel

Steel Grade Tensile strength, N/mm (Mpa) not less thanYield strength, N/mm (Mpa) not less than Elongation, %

S185 290 (29.6) 185 (18.9) 18