Seamless Steel Tubing ( DIN2391/EN10305-1) Cold Drawn Cold Rolled

Hebei province gold mysterious pipe co.,ltd is one of the key manufacturer specializing in seamless steel pipes.Products include common seamless steel pipe,cold-drawing pipe,cold-rolling pipe and special shape pipes.

Seamless Steel Tubing ( DIN2391/EN10305-1)  

 Quality Standard:

DIN 2391 Seamless Precision Steel Tubes
EN10305 Steel tubes for precision applications. Technical delivery conditions. Seamless cold drawn tubes 

Size:
Outer Diameter:8mm-80mm

Wall Thickness:1mm-14mm

Length: Random Length, Fixed Length, SRL, DRL

Heat treatment:
Annealed: Bright annealed, , Spheroidize annealed
Normalized, Stress relieved, Cold finished, Quenched and Tempered

Delivery Condition : BKS, BK ,BKW, GBK(+A), BK(+C)

Packing:Hexagonal bundles of max. 2,000kg with several steel strips, Wrapped in sackcloth with several steel strips

EN 10305-1/4 Seamless Steel Tubes for precision applications

C (Max)  Mn(Max)  Si(Max)  S(Max)  P(Max)2. CHEMICAL COMPOSITION (%)

0.22        1.6      0.5       0.035   0.035

3. MECHANICAL PROPERTIES

Elongation(Min)       Y.S (Min.)               UTS (Min.)

≥15               470 N/MM2               580 N/MM2

4. SUPPLY CONDITION

Cold drawn seamless steel tube, stress relieved 

5. SURFACE ROUGHNESS Ra = 0.4~0.8Micron

6. STRAIGHTNESS: ≤1 mm/M

7. OD TOLERANCE +/-0.10mm

8. LENGTH 100-13400mm AND CUT TOLERANCE +/-2mm

9. TUBE ENDS :nominally square to the axis and free from burs

11. APPEARANCE

Tube shall have a smooth internal and external surface consistent with cold working

process, tube inner surface should be free from rust, scratches and other surface

irregularities.

12. CERTIFICATION both in English and Chinese.

.

 Mechanical Properties (Mpa):

Test equipment:

Test: Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield

strength, Elongation), Technical Properties (Flattening Test, Flaring Test, Bending Test, Hardness Test,

Blow Test, Impact Test etc), Exterior Size Inspection, Nondestructive Test (Ultrasonic flaw detector, Eddy

current flaw detector), Hydrostatic Test. 

mmon pipe:

Usage:

The pipes are widely used for the auto/motorcycle/agricultural machine/railway project/low-high pressure boiler tubes/bearing tubes/ships manufacturing industries/oil and other high standards & demand processing & manufacturing industries.