Honed Tube St 52 / E355

Honed Tube St 52 / E355

Usage

Applicable to hydraulic pressure, pneumatic cylinder, oil pump barrel, motor body, transmission shaft, etc.

Quality Standard  

DIN 2391, EN 10305-1, SAE J524, ASTM A519 and GB3639.

Process

Raw materials- Cold drawn/rolled- Heat treatment (BKS)- Honed or SRB- packing.

Steel Grade

ST52, ST52.3, E355, SAE1026, Q345B.

*Low temperature impact test upon request (27J/-40°C). 

Size

Processing	Cylinder diameter	Length /mm	Straightness	Size accuracy	Wall thickness/mm	Inner bore roughness
Cold Drawn/Rolled	ID28~OD400	≤12M	0.3~1.0m m/m	H8-H11	±5%	0.8~1.6um
Honed/SRB	ID30~OD500	≤12M	0.3~1.0m  m/m	H8	±5%	0.4~0.8um

Honed Tube ST52 Mechanical Properties 

Delivery Condition	Cold Finished (BK)		Stress relieved (BKS)
	Rm	Elongation	Rm	ReH	Elongation
	MPA	%	MPA	MPA	%
ST52	≥640	≥5	600	520	14

Packaging

With anti-rust oil on inner diameter of each pipe, tube caps on both ends, hexagonal bundles of max 3,000 kg with several steel strips, nylon bag and waterproof paper package each bundle. Of course, customers can customize other packing way.

Our Services

Third Party inspection acceptable. such as SGS, BV etc.

Supplying financial support with usance L/C 180days after B/L date.

Contact Us:

Samson Huang

Sales Manger

Phone: 86-15121067826

Skype: samsonhuang22

Email: samsonhuang@shunitesteel.com

Shanghai Unite Steel

Tel: 86-21-35316960   Fax: 86-21-35316961

Add: Room 1109, No. 275-8 Guoding East Road, Shanghai 200433, China

Web: www.shunitesteel.com

Hydraulic Cylinder Tube

Hydraulic cylinder tube advantages:
1. high surface roughness, the roughness Ra ≤ about 0.08μm.
2. oval-degree ≤ 0.01mm.
3. to improve the surface hardness, making the elimination of stress and deformation, hardness HV ≥ 4 °
4. processing residual stress layer, improve fatigue strength increased by 30%.
5. improve quality, reduce wear and extend component life, and reduce processing costs of parts instead.