E355 Cold Drawn Seamless Carbon Steel Long Life Tubes for Marine Parts

Shop durable E355 Cold Drawn Seamless Carbon Steel Long Life Tubes for Marine Parts from our factory. High-quality, long-lasting tubes for marine applications.
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PRODUCTS DETAILS

Basic Info.

Origin
China
HS Code
7304319000

Product Description

Detailed Image:

E355 Cold Drawn Seamless Carbon Steel Long Life Tubes for Marine Parts

Standard:

Chemical Composition and Mechanical Performance:

Table 1- Chemical composition

Steel Grade

C%

Si%

Mn%

P%

S%

AL%

E215

≤0.10

≤0.05

≤0.7

≤0.025

≤0.025

≥0.025

E235

≤0.17

≤0.35

0.4-1.2

≤0.025

≤0.025

 

E255

≤0.21

≤0.35

0.4-1.1

≤0.025

≤0.025

 

E355

≤0.22

≤0.55

≤1.6

≤0.025

≤0.025

 

 

Table 2 - Mechanical properties at room temperature

Delivery Condition

BK

BKW

GBK

NBK (N)

Steel Grade

Rm

A %

Rm

A %

Rm

A %

Rm  

ReH

A %

Mpa (Min)

(Min)

Mpa(Min)

(Min)

Mpa(Min)

(Min)

Mpa(Min)

Mpa(Min)

(Min)

E215

430

8

380

12

280

30

290~430

215

30

E235

480

6

420

10

315

25

340~480

235

25

E255

580

5

520

8

390

21

440~570

255

21

E355

640

4

580

7

450

22

490~630

355

22

 

Other Specification:

End Shape

Beveled end, plain end, vanished, or adding plastic caps to protect the two ends as per customer's

requirements

Surface

Treatment

Oiled, Galvanized, Phosphate etc

Technique

Cold drawn & cold rolled

Application

1. Automotive and mechanical pipes

2. Petroleum cracking pipes

3. High Pressure Boiler Pipe

4. Low and middle pressure fluid transportation pipeline

5. Chemical fertilizer equipment pipes

6. Heat exchanger pipes

Delivery

Conditions

1. BK (+C)

No heat treatment after last cold forming process.

2. BKW (+LC)

After last heat treatment there is a light finishing pass (cold drawing)

3. BKS (+SR)

After the final cold forming process the tubes are stress relieve annealed.

4. GBK (+A)

After the final cold forming process the tubes are annealed in a controlled atmosphere.

5. NBK (+N)

After the final cold forming process the tubes are annealed above the upper transformation

point in a controlled atmosphere.

Package

1. Bundle Packing.

2. Plain end or vanished as per customer's request.

3. Wrapped in waterproof paper.

4. Sackcloth with several steel strips.

5. Pack in heavy tri-wall boxes.

Production process

E355 Cold Drawn Seamless Carbon Steel Long Life Tubes for Marine Parts

Steel bar from steel plant→Physical and chemical inspection→Surface treatment →Cutting → Heating→Hot piercing→Shell storage→Pickling and lubrication→Cold rolling→Heattreatmen  →Pickling and lubrication→Cutting→Punching→Cold drawn→Size inspection→Outer and inner surface cleaning→NBK or GBK→Mechanics inspection→Chemical analysis 

Antlrust oil palnting→print→packing→flnished storage→Dellivery with quality certificate


1.We adopt special techniques and special skill in the acid cleaning process to deal with the   place where it's easy to form fold crevice;
2.Well organized process,especially annealing treatment in a severely technical manner;
3.In respect with lubrication,we adopt the international advanced level treating process in the  world,and put the surface quality of our productsunder strict control in order to prevent causing surface crack.

Certificate:

E355 Cold Drawn Seamless Carbon Steel Long Life Tubes for Marine Parts

Certificates:

According to EN 10204 3.1

Inspection Items:

Tensile stength, Yield stength, Elongation, Flattenging, FlaringChemical analysisEddy Current

Test 100%, Size and surface checking 100%Other test item can be arranged as per request

 

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