Generally, this pipe used for hydraulic equipment and institutional structure which has high precision and good surface finish, which including piston and plunger type

STANDARDS

BS EN 10297-1 Seamless circular steel tubes for mechanical and general engineering purpose- Technical delivery condition

BS  EN 10305-1 Steel tube for precision application-Technical delivery conditions

GB/8163 Seamless steel pipe for liquid service

Major material

34CrMo4, 30 Mn2, 27SiMn, Q345, E355, E470, 20# etc

Product Features

Dimensional precision: Cylinder pipe with few deviation in wall thickness tolerance , wall unevenness, outside tolerance and ovality

Surface Quality: Through the plug , mandrel and furnace temperature can control internal and external surface finish, control tube oxidation skin pits and others defect that can meet the requirements of clients

Mechanical property: through hot-rolling or heat treatment process can makes the material meets the mechanical property requirements of BS EN 10297-1:2003 and GB/8163-2008.

Others: According to the requirement of client that we can add 0.020%-0.045% sulfur in to the E355 and E470 which can improve the performance of the cylinder pipe cutting to reduce customer tool consumption. For the large caliber plunger in the market , we can as per the clients requirements to supply the upsetting cylinder billet that can reduce the client workload