A pipe could be defined as follows:

Part hollow, usually cylindrical and generally open at both ends”.


Within industry, piping means "a system of pipes used to convey flids (liquids and gases) from one location to another". The engineering discipline of "piping design" studies the efficient tranport of fluids.


CARBON STEEL

Principal materials:
A, B, C, X42, X46, X52, X60, A179, A192, T1, STKM11A, STKM12A, STB340, J55, M55, K55, L80, N80, P110, 20G, (St 45.8),  320, 360, 440, St 37, St 44, St 35, St45, St 52, 10#, 20#, 35#, 45#, Q195, Q235, Q345, (16Mn) Q390, etc.

Applications:
Transport fluid, high pressure pipes, petroleum industry, pipes, structural tubes, etc...


NORMS AND STANDARDS

Common Standards:

- DIN-2440 (EN 10255 rule replaced the first one)
This rule (EN 10255) was published in October 2005 and affects non-alloy steel pipes suitable for welding and threading.
The rule EN 10255, cancels or replaces other Spanish rules, European rules and international rules used for over 10 years.


- DIN2441


- API 5L (American Petroleum institution): Is the rule for oil pipe.


Bellow shows a chart with equivalents of the legislation:

European Standards

UNE Spanish Standards: Cancels

DIN German Standards: Cancels

ISO International Standards


European Standards UNE-EN


UN EN 10255

Medium series M

UNE 19040 Normal series

DIN-2440

ISO 65


UNE EN 10255 Medium series M

UNE 19045


UNE 19047


UNE 19051


UNE EN 10255

Heavy series H

UNE 19041 reinforced series

DIN-2441

ISO 65


UNE EN 10255 Heavy series H

UNE EN 10255

Type L1

UNE 19042 light series


ISO 65 light series I


UNE EN 10255 Type L1

UNE EN 10255

Type L2

UNE 19043 extra light series

ISO 65 light series II


UNE EN 10255 Type L2

UNE EN 10255 Type L





UNE EN 10255 Type L