Concrete pump inner-hardened pipe, Concrete Pump Pipe, Concrete Pump straihgt Pipe, concrete pump pipe
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Concrete pump inner-hardened pipe

The concrete pump straight pipe is made of special alloy steel ( 45Mn2). The inner pipe wall is case hardened by CNC high-frequency induction hardening machine. The inner pipe wall becomes a wearable layer with high hardness.
Wall thickness: 4.0mm, 4.5mm, 5.0mm, 7.5mm etc.
Color: according to customers' requirement
1.The concrete pump straight pipe is made of special alloy steel ( 45Mn2). The inner pipe wall is case hardened by CNC high-frequency induction hardening machine. The inner pipe wall becomes a wearable layer with high hardness. The service life of the inner-hardened concrete pump boom pipe is as 3 to 5 times as normal concrete pump pipe.

2.Heat treatment process: Case hardening by high-frequency induction quenching

3.Wall thickness of the pipe: 4.00mm, 4.50mm, 7.50mm

4.Hardness:
HRC58-HRC62 for inner quenching layer;
HRC35-HRC40 for transition layer;
HRC25-HRC30 for protective layer
Specification Inner diameter(mm) Outer diameter (mm) Wall thickness(mm) Length(mm)  The wall thickness of quenching layer(mm) Weight(kg)   Working pressure
Concrete pump Boom pipe 125 133 4 3000 1.50-1.80 48 85 bar
Concrete pump Boom pipe 125 133 4.5 3000 1.50-1.80 45 85 bar
Concrete pump Deck pipe 125 140 7.5 3000 2.5 85 85 bar


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