Specifications

1.chrome honed tubing
2.High reputation
3.Golden supplier
4.OEM service
5.Top Quality

chrome honed tubing

(Inside surface honed and outside surface chrome)

Grade:ST 52

Metric size:

Inside diameter from 40 to 300mm, 

Max length 16m.

Straightness: 0.5 /1000
Tolerance EXT: DIN 2391
Tolerance INT: ISO H8
Roughness(Ra): 0.2 to 0.4µ

Chrome thickness: 20 TO 50 Micron

Type:cold drawing, normalizing treatment, honing or skiving, chrome outside surface.

CHEMICAL COMPOSITION (%)

Si (Max)	Mn (Max)	C (Max)	P (Max.)	S (Max)
0.55	1.60	0.22	0.025	0.025

 

MECHANICAL PROPERTIES

Tensile strength  Min	Yield Point  Min	Elongation  % Min
580 N/mm2	420 N/mm2	10

 

Length: unfixed length or fixed length 

Package: wooden box

Conservation: Anti rust oiled coating on the inside and outside of the surface, plastic caps at both ends.

Impact test: -20°C, 27 J (only for special requirement)

Main Production Progress:

 

Raw material

→

Cold drawn

→

Heat treatment BK+S

→

Honed & SRB

→

Packing

 

 

 

 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 regular 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!