products

HOT PRODUCTS

  • ASTM A355 P5 seamless alloy steel pipe
  • Ball Valves three way
  • Oil tubing coupling

Products

Location : Home > Products

Inquiry Now

  • Name:

  • Company:

  • Mobile:

  • E-mail:

  • Message:

  • Code:

    看不清?点击一下!

Description

What is welded steel pipe?
Welding pipes is one of the simplest and most durable ways to join piping together and steel pipes can simply be welded together with MIG (metal inert gas), TIG (tungsten inert gas or SMAW (stick metal arc) welding. Before welding two pipes together, avoid any gaps between the two pipes. While welding, take measures to ensure the continual alignment of the two pipes.
Welded steel pipe in the form of welds are divided into straight seam welded pipe and spiral welded pipe. By production method classification: process classification - arc welded pipe, resistance welded pipe, (high frequency, low frequency) gas welded pipe.

What is Seamless pipe?
Seamless piping begins as a solid cylindrical hunk of steel called a billet. While still hot, billets are pierced through the center with a mandrel. The next step is rolling and stretching the hollow billet. The billet is precisely rolled and stretched until it meets the length, diameter and wall thickness as specified by the customer order.

Material list

Elements
Chemical Composition%
Mechanical Property
Material
C%
Mn%
S%
P%
Si%
Yield Point
Tensile Strength
Elongation
(Mpa)
(Mpa)
(%)
Q195
0.06-0.12
0.25-0.50
<0.05
<0.045
<0.3
>195
315-430
32-33
Q235
0.12-0.2
0.30-0.70
<0.045
<0.045
<0.3
>235
375-500
24-26
Q345
<0.20
1.0-1.6
<0.04
<0.04
<0.55
>345
470-630
21-22

how to contact us?

links

Cangzhou Datang Steel Pipe Co., Ltd All Right Resevered.