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PK - A leading professional manufacturer for concrete pump parts .

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Concrete pump inner-hardened pipe

Concrete pump inner-hardened pipe

by admin / Tuesday, 28 November 2017 / Published in Concrete pump pipe

he 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.

 Specification of Concrete Pipe

Type DN Thickness

(mm)

Length

(mm)

Weld-on Ends Weight

(kgs)

Applicable

Pump Brands

ST52

Seamless pipe

125 4.5 3000/

2000/

1000/

500

148mm 46 PM,Schwing,Sany
7.0 148mm 72 PM,Schwing,Sany
45Mn2

Hardened Pipe

125 4.5 148mm Chrome Carbide Insert 48 PM,Schwing,Sany
7.0 148mm Chrome Carbide Insert 76 PM,Schwing
Twin-Wall Pipe 125 2.5+2 148mm Chrome Carbide Insert 48 PM,Schwing,Sany
3.0+2 148mm Chrome Carbide Insert 53 PM,Schwing,Sany
ZX-Pipe(ST52) 125 7.0 5″ ZX flanges 72 PM
8.0 5″ ZX flanges 82 PM
MF-Pipe(ST52) 125 4.5 5″ F/M flanges 46 Schwing
7.0 5″ F/M flanges 72 Schwing
Name
size
thickness(mm)
length(m)
using life(m3)
Q235 welded pipe
DN125
4
3
8000
DN125
4.25
3
8000
DN125
4.75
3
12000
DN125
5
3
12000
St52 seamless steel pipe
DN125
4.5
3
15000
DN125
5
3
18000
DN125
6
3
23000
DN125
7.75
3
25000
DN125
8
3
30000
Single wall pipe
DN125
4.5
3
20000
DN125
5
3
28000
DN125
6
3
30000
DN125
8
3
35000
Twin wall pipe
DN125
4.5
3
60000
DN125
5
3
60000
DN125
8
3
70000

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

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