Specifications

1.Precision honing piping Strict standards
2.NO MOQ
3.Widly Used
4.Fast Shipment
5.Advantace Technology

Precision honing piping Strict standards

1 OD32-500mm W.T.3.5-80mm 2 ISO certificated DIN2391 En10305 3 Straightness:0.3~1mm/m 4 Inside Roughness:0.4~0.8um

steel pipes for hydraulic use

2.Material: C20, CK45, etc. also ST52 if given enough time. our products are widely used in hydraulic industry and is very popular both home and abroad.

3.And we can also make our products according to the customers' needs.

Variety

Processing	Cylinder diameter	Length /mm	Straightness	Size accuracy	Wall thickness/mm	Inner bore roughness
Cold-drawn	ID30~OD250	≤13M	0.3~1.0mm/m	H9-H11	±8%	0.8~1.6um
Honed tube	ID50~OD325	≤10M	0.3~1.0mm/m	H7-H9	±8%	0.4~0.8um

 

 Mechanics performance

Material	Tensile strength	Yield strength	Elongation	Hardness
Ck20	510 σ N/mm2	500σsN/mm2	5δs%	175HB
Ck45	660 σN/mm2	630σsN/ mm2	4δs%	207HB
ST52	580σ N/mm2	420σsN/ mm2	10δs%	190HB
27SiMn	840σ N/mm2	805σsN/ mm2	7.5δs%	230HB

 

Dimension tolerance

ID size	ID deviation (mm)
	H7	H8	H9	H10
30	+0.021 0	+0.033 0	+0.052 0	+0.084 0
>30~50	+0.025 0	+0.039 0	+0.062 0	+0.100 0
>50~80	+0.030 0	+0.046 0	+0.074 0	+0.120 0
>80~120	+0.035 0	+0.054 0	+0.087 0	+0.140 0
>120~180	+0.040 0	+0.063 0	+0.100 0	+0.160 0
>180~250	+0.046 0	+0.072 0	+0.115 0	+0.185 0
>250~315	+0.052 0	+0.081 0	+0.130 0	+0.210 0
>315~400	+0.0527 0	+0.089 0	+0.140 0	+0.230 0

Production Process:

 

 Pretreatment : Pickling­—Phosphating—Saponification

 

 

 Cold drawn/cold rolled

 

 Annealing furnace——+SR

 

 Straightener—— Straightening

 

 Straightness inspecting

 

 Dimension inspecting

 

  

Sawing

 

 

 Skiving and Roller burnishing

 

Products inspecting

 

 

• Finished Products

 

 

 

 

 

About our service:

 

 

 

1.Cargo track service during transporting and feedback service after cargo is loaded on board

 

 

 

2.Flexible terms of payment by

 

 

 

3.Big discount for repeat customers

 

 

 

4.Smooth delivering procedure

 

5. Payment Terms: T/T , L/C And so on.

 

 

If there are any Question, please Feel free to send us inquiry.

 

We will provide the professional Explanation.

 

 

We always doing our Best!