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Structural Cold Rolled DIN2391 ST35 ST35, ST45, ST55, ST52.4 NBK Precision Steel Tube
Structural Cold Rolled DIN2391 ST35 ST35, ST45, ST55, ST52.4 NBK Precision Steel Tube
Structural Cold Rolled DIN2391 ST35 ST35, ST45, ST55, ST52.4 NBK Precision Steel Tube
Structural Cold Rolled DIN2391 ST35 ST35, ST45, ST55, ST52.4 NBK Precision Steel Tube
Structural Cold Rolled DIN2391 ST35 ST35, ST45, ST55, ST52.4 NBK Precision Steel Tube
Structural Cold Rolled DIN2391 ST35 ST35, ST45, ST55, ST52.4 NBK Precision Steel Tube
Structural Cold Rolled DIN2391 ST35 ST35, ST45, ST55, ST52.4 NBK Precision Steel Tube
Structural Cold Rolled DIN2391 ST35 ST35, ST45, ST55, ST52.4 NBK Precision Steel Tube
Structural Cold Rolled DIN2391 ST35 ST35, ST45, ST55, ST52.4 NBK Precision Steel Tube
Structural Cold Rolled DIN2391 ST35 ST35, ST45, ST55, ST52.4 NBK Precision Steel Tube
Specifications
Brand Name :
Torich
Model Number :
DIN 2391
Certification :
ISO
Place of Origin :
China
MOQ :
2 tons
Price :
Negotiable
Payment Terms :
L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability :
6000 Ton/Tons per Year
Delivery Time :
25-45 days
Packaging Details :
Packed in wooden boxes or seaworthy packing.
Product name :
Structural Cold Rolled DIN2391 ST35 ST35, ST45, ST55, ST52.4 NBK Precision Steel Tube
Keyword :
High Precision Seamless Steel Tube
Brand :
TORICH
Standard :
DIN 2391
Grade :
ST35, ST45, ST55, ST52.4
Technical :
Cold Rolled, Cold Drawn
Surface treatment :
customerized
Section shape :
Round
Description

Structural Cold Rolled DIN2391 ST35 ST35, ST45, ST55, ST52.4 NBK Precision Steel Tube

Standard: DIN2391-1

Technique: Cold Drawn, Cold Rolled.

Size range: OD: 4-76mm, WT:0.5-8mm, Length: ≤12m, or at buyer's request.

Material: ST35, ST45, ST55, ST52.4 etc

Surface quality: Without oxidization, No crack, No fold, No rolling fold, No scar, No laminar defect

Chemical composition:

Standard Steel Grade C(%) Si(%) Mn(%) S(%) P(%)
DIN 2391 St35 ≤0.17 ≤0.35 ≥0.40 ≤0.025 ≤0.025
St37 ≤0.17 ≤0.35 ≥0.40 ≤0.025 ≤0.025
St37.4 ≤0.17 ≤0.35 ≥0.40 ≤0.025 ≤0.025
St45 ≤0.21 ≤0.35 ≥0.40 ≤0.025 ≤0.025
St44 ≤0.21 ≤0.35 ≥0.40 ≤0.025 ≤0.025
St52 ≤0.22 ≤0.35 ≥1.60 ≤0.025 ≤0.025

Production process:
DIN series tubes, cold drawn and bright annealed precision seamless steel tube is used as the tube to be phosphated.

The phosphorization is realized with the imported chemical fluid to form a black film.

The antirust oil is absorbed by means of the micropore on the film to prevent the tubes from getting rust.

Quality grades
Tubes shall be supplied in the following quality grades:
for precision steel tubes, that do not require an inspection certificate and thus are not subject to special requirements, grade A;
for precision steel tubes subject to special requirements, grade C.
In accordance with the stated demands of the purchaser, such special requirements and the relevant test methods shall

be the subject of agreement.

Main feature

High precision, Excellent brightness, No oxidization on outer and inner walls after heat treatment

High cleanness of inside wall, High pressure, No deformation after clod bending, No crack after flaring and flattening

Type of test or inspection
Tensile test, Flattening test, Drift expanding test, Measurement of surface roughness
Dimensional check, Surface inspection, Leak tightness test, Non-destructive test

Delivery condition

BK (+C) Cold finished/hard No heat treatment after the last cold forming process.
BKW (+LC) Cold finished/soft After the last heat treatment there is a light finishing pass (cold drawing).
BKS (+SR) Cold finished/stress relieve annealed. After the final cold forming process the tubes are stress relieve annealed.
GBK (+A) Annealed. After the final cold forming process the tubes are annealed in a controlled atmosphere.
NBK (+N) Normalized. After the final cold forming process the tubes are annealed above the upper transformation point in a controlled atmosphere

Prodcut Show of Precision Steel Tube

Structural Cold Rolled DIN2391 ST35 ST35, ST45, ST55, ST52.4 NBK Precision Steel TubeStructural Cold Rolled DIN2391 ST35 ST35, ST45, ST55, ST52.4 NBK Precision Steel Tube

Application of Precision Steel Tube

Structural Cold Rolled DIN2391 ST35 ST35, ST45, ST55, ST52.4 NBK Precision Steel TubeStructural Cold Rolled DIN2391 ST35 ST35, ST45, ST55, ST52.4 NBK Precision Steel Tube

Our Certifications

Structural Cold Rolled DIN2391 ST35 ST35, ST45, ST55, ST52.4 NBK Precision Steel Tube

QUALITY CONTROL:

1. Incoming Raw Material Inspection

2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Drawing and Cold Rolling, on line inspection
5. Heat Treatment, +A, +SRA, +LC, +N, Q+T
6. Straightening-Cutting to specified length-Finished Measuring Inspection
7. Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8. Packing and Stocking

100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects

FAQ

Q: Are you trading company or manufacturer ?
A: A professional steel pipes materials inventor, manufacturer and solution provider


Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 30-60 days if the goods are not in stock, it is according to quantity.


Q: Do you provide samples of carbon seamless steel tube ? is it free or extra ?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.


Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.


If you have another question, pls feel free to contact us.

Product tags

din 2391 seamless steel tube

,

din2391 seamless precision steel tube

,

din2391 precision seamless steel tube
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Structural Cold Rolled DIN2391 ST35 ST35, ST45, ST55, ST52.4 NBK Precision Steel Tube

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Product Detail
Brand Name :
Torich
Model Number :
DIN 2391
Certification :
ISO
Place of Origin :
China
MOQ :
2 tons
Price :
Negotiable
Contact Supplier
video
Structural Cold Rolled DIN2391 ST35 ST35, ST45, ST55, ST52.4 NBK Precision Steel Tube
Structural Cold Rolled DIN2391 ST35 ST35, ST45, ST55, ST52.4 NBK Precision Steel Tube
Structural Cold Rolled DIN2391 ST35 ST35, ST45, ST55, ST52.4 NBK Precision Steel Tube
Structural Cold Rolled DIN2391 ST35 ST35, ST45, ST55, ST52.4 NBK Precision Steel Tube
Structural Cold Rolled DIN2391 ST35 ST35, ST45, ST55, ST52.4 NBK Precision Steel Tube

TORICH INTERNATIONAL LIMITED

Verified Supplier
11 Years
zhejiang, ningbo
Since 1997
Business Type :
Manufacturer, Distributor/Wholesaler, Importer, Exporter, Trading Company, Seller
Main Products :
Precision Steel Tube, Seamless Steel Tube, Stainless Steel Tube
Total Annual :
25000000-30000000
Employee Number :
100~200
Certification Level :
Verified Supplier
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