Cangzhou Spiral Steel Pipes Group Co.,Ltd.

API5L spiral steel pipe material

X42, X46, X52, X56, X60

Standard Specification for API5L Spiral

API 5L

External anti-corrosion treatment or black paint, commonly used in petroleum, natural gas transmission pipeline spiral steel pipe which is divided into PSL1 and PSL2 two levels.

API standard spiral steel pipe friction reduction, wear resistance, including by friction factor, wear and the relative wear factor to reflect.

Friction factor

Objects in contact with each other, as the relative movement will cause friction, friction caused by friction as friction. According to the law of friction, friction force (F) is usually applied to the friction part of the vertical load (N) ratio, known as the friction factor

F

Μ = -

Lt; / RTI & gt;

Where: F - friction (N)

The vertical load (N) applied to the friction member,

Abrasion

(G) or volume (cm 3) of the specimen after a certain period of time or a certain distance of friction under the specified test conditions is referred to as the amount of abrasion (or the amount of abrasion) to abrade the volume The representation is called the volume abrasion V

Relative wear factor

In the simulation of wear-resistant testing machine, using 65Mn (52-53HRC) as a standard sample, under the same conditions, the standard specimen wear and the absolute wear of the measured material ratio, known as the relative wear resistance of the measured coefficient