Concrete pump inner-hardened pipe

FOR IMMEDIATE RELEASE
(Free-Press-Release.com) January 16, 2012 -- 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

HRC25     HRC30     HRC35     HRC40     HRC58     HRC62