Specifications
Brand Name :
Joyruns
Model Number :
25.4*2.77
Certification :
ISO9001
Place of Origin :
Changzhou
MOQ :
2Tons
Payment Terms :
L/C, T/T
Supply Ability :
2000Tons/Month
Delivery Time :
30days
Packaging Details :
plastic packing, end caps, wooden box packing
OD size :
6mm to 114.3mm
Thickness :
1mm to 20mm
Standard :
DIN2391, EN10305, EN10216, EN10210
Material :
ST35, ST45, ST52,E255,E235,E355
Type :
cold drawning /Cold rolled
Delivery State :
+N, +NBK,+C,+BKS,+GBK,+N
Description

EN10305-1 E255 seamless cold-drawn pipe for Automotive Industry

Be used for hydraulic systems, motorcycle and automobile vibration dampers and other

fields that have high requirements to steel pipe's precision, finish cleanness and mechanic properties.

Precision tube is a kind of steel tube with tight tolerance or good surface quality through cold drawing or cold rolling. These kinds of tubes are widely used in machinery parts, automotive parts,oil&gas pipeline pigging,etc

Chemical Composition:

Standard

Steel Grade

Material Number

C

Si

Mn

P

S

Cr

Mo

EN10305-1
EN10305-4

E235

1.0308

<= 0.17

<= 0.35

>=0.04

<=0.025

<=0.025

-

-

EN10305-1
EN10305-4

E255

1.0408

<= 0.21

<= 0.35

>=0.04

<=0.025

<=0.025

-

-

EN10305-1
EN10305-4

E355

1.058

<= 0.22

<= 0.55

<=1.60

<=0.025

<=0.025

-

-

Steel Grade

(+C)

(+LC)

(+SR)

(+A)

(+N)

Rm Tensile Strength (Mpa) Min

A Elongation (%)

Min

Rm Tensile Strength (Mpa) Min

A Elongation (%) Min

Rm Tensile Strength (Mpa) Min

Rel Yield Strength(Mpa) Min

A Elongation (%) Min

Rm Tensile Strength (Mpa) Min

A Elongation (%)Min

Rm Tensile Strength (Mpa)

Rel Yield Strength (Mpa) Min

A Elongation (%) Min

E235

480

6

420

10

420

350

16

315

25

340-480

235

25

E255

580

5

520

8

520

375

12

390

21

440-570

255

21

E355

640

4

580

7

580

450

10

450

22

490-630

355

22


Final supply conditions:.

Designation

Symbol

Description

Cold finished (hard)

BK

Tubes do not undergo heat treatment following the final cold forming and, thus, have a rather high resistance to deformation.

Cold finished (soft)

BKW

The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming (e.g. bending, expanding).

Cold finished and stress-relieved

BKS

Heat treatment is applied following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree.

Annealed

GBK

The last cold forming process is followed by annealing in a controlled atmosphere.

Normalized

NBK

The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere.


EN10305-1 E255 Cold Drawn Seamless Pipe 16*1mm For Automotive Industry EN10305-1 E255 Cold Drawn Seamless Pipe 16*1mm For Automotive Industry EN10305-1 E255 Cold Drawn Seamless Pipe 16*1mm For Automotive Industry

EN10305-1 E255 Cold Drawn Seamless Pipe 16*1mm For Automotive Industry EN10305-1 E255 Cold Drawn Seamless Pipe 16*1mm For Automotive Industry EN10305-1 E255 Cold Drawn Seamless Pipe 16*1mm For Automotive Industry

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EN10305-1 E255 Cold Drawn Seamless Pipe 16*1mm For Automotive Industry

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Brand Name :
Joyruns
Model Number :
25.4*2.77
Certification :
ISO9001
Place of Origin :
Changzhou
MOQ :
2Tons
Payment Terms :
L/C, T/T
Contact Supplier
video
EN10305-1 E255 Cold Drawn Seamless Pipe 16*1mm For Automotive Industry
EN10305-1 E255 Cold Drawn Seamless Pipe 16*1mm For Automotive Industry
EN10305-1 E255 Cold Drawn Seamless Pipe 16*1mm For Automotive Industry
EN10305-1 E255 Cold Drawn Seamless Pipe 16*1mm For Automotive Industry

Changzhou Joyruns Steel Tube CO.,LTD

Verified Supplier
5 Years
changzhou
Since 2000
Business Type :
Manufacturer, Agent, Exporter, Seller
Total Annual :
10000000-20000000
Employee Number :
150~300
Certification Level :
Verified Supplier
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