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Home > Products > Seamless steel pipe > EN 10297 Mechanical seamless Tubes

EN 10297 Mechanical seamless Tubes

FOB Price

USD $1000 - $3000 / Ton

10 Tons(Min. Order)

Port Shanghai
Payment TermsT/T L/C D/P D/A
Delivery Detail30 days

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Product Details

Place of Origin	China	Thickness	5, 30
Application	Structure Pipe	Technique	Cold Drawn
Secondary Or Not	Non-secondary	Special Pipe	Thick Wall Pipe
Section Shape	Round	Outer Diameter	15, 300

Product Description

20MnV6, alloy steel, EN 10297, EN 10297 C35E, EN 10297 E235, EN 10297 E355, EN 10297 Mechanical Tubes, Mechanical Tubes, Seamless tube, seamless tubes, steel pipes, steel tube, steel tubes
EN 10297 Seamless circular steel tubes for mechanical and general engineering purposes. Technical delivery conditions. Non-alloy and alloy steel tubes.
Standard: BS EN 10297-1:2003
Applications of  EN10297:
Alloy and non-alloy steel pipes, with circular section for mechanical and engineering applications.
Process: Seamless
Tolerance and size range :
Outside diameter:
D<=219.1mm: +/-1%(Min+/-0.5mm)
D>219.1mm:+/-1%
Thickness:
D<=219.1mm:+/-12.5%(min +/-0.4mm)
D>219.1mm: itchanges according to the ratio thickness/ diameter
Tolerance on thickness related to t/CD:
<=0.025
0.025
>0.050
 +/- 20%
 +/-15%
 +/-12.5%
Size range: According to DIN_EN_10220-2003 unless differently spcified by the customer
Straightness
D<33.7mm :not specified
D>=33.7mm :0.15% on the total length
Note:
D: Outside diameter
T: Nominal thickness (mm)
Out of proundness
Included in the outside diameter tolerance
Standard and Steel grade:
EN 10297 E235
EN 10297 E355
EN 10297 C35E
20MnV6
Certification: UNI EN10204.3.1
Chemical analysis [%] of  EN 10297:
Steel grade
C
Si
Mn
P
S
E235
≤0,17
≤0,35
≤1,20
≤0,040
≤0,045
E355
≤0,22
≤0,55
≤1,60
≤0,040
≤0,045
C35E
0,32 – 0,39
≤0,40
0,50 – 0,80
≤0,035
≤0,035
20MnV6
0,16 – 0,22
0,10 – 0,50
1,30 – 1,70
≤0,035
≤0,040
Mechanical properties of EN 10297:
Steel grade
Supply condtion
ReH min [MPa]
Rm min [MPa]
A [%]
T≤16
16
T≤16
16
E235
AR
235
225
360
360
25
E355
AR
355
345
490
490
20
C35E
N
300
280
520
500
17
20MnV6
AR
470
450
650
620
17
Condition on delivery:
Term
Symbol
Explanation
Cold-finished/hard
(cold-finished as-drawn)
BK
No heat treatment after the last cold-forming process. The tubes therefore have only low deformability.
Cold-finished/soft
(lightly cold-worked)
BKW
After the last heat treatment there is a light finishing pass (cold drawing) With proper subsequent processing, the tube can be cold-formed (e.g. bent, expanded) within certain limits.
Annealed
GBK
After the final cold-forming process the tubes are annealed in a controlled atmosphere or under vacuum.
Normalized
NBK
The tubes are annealed above the upper transformation point in a controlled atmosphere or under vacuum.

Surface treatment:

Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting.

Both ends of each crate will indicate the order no., heat no., dimensions, weight and bundles.

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Product Categories

Abrasion resistant pipe	Alloy steel pipe	Seamless steel pipe	Pipe fittings
Welded pipe	Flange	Rare earth alloy wear- esistant pipe	Cast basalt lined steel pipe
Bimetallic composite pipe	Ceramic lined pipe	Ceramic tile lined pipe and fittings	Ceramic sleeve lined Pipe
Ceramic Tile Lined Pipes	Tube shield	Valve

EN 10297 Mechanical seamless Tubes

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Product Tags:

Steel grade	C	Si	Mn	P	S
E235	≤0,17	≤0,35	≤1,20	≤0,040	≤0,045
E355	≤0,22	≤0,55	≤1,60	≤0,040	≤0,045
C35E	0,32 – 0,39	≤0,40	0,50 – 0,80	≤0,035	≤0,035
20MnV6	0,16 – 0,22	0,10 – 0,50	1,30 – 1,70	≤0,035	≤0,040

Steel grade	Supply condtion	ReH min [MPa]		Rm min [MPa]		A [%]
Steel grade	Supply condtion	T≤16	16	T≤16	16	A [%]
E235	AR	235	225	360	360	25
E355	AR	355	345	490	490	20
C35E	N	300	280	520	500	17
20MnV6	AR	470	450	650	620	17

Term	Symbol	Explanation
Cold-finished/hard (cold-finished as-drawn)	BK	No heat treatment after the last cold-forming process. The tubes therefore have only low deformability.
Cold-finished/soft (lightly cold-worked)	BKW	After the last heat treatment there is a light finishing pass (cold drawing) With proper subsequent processing, the tube can be cold-formed (e.g. bent, expanded) within certain limits.
Annealed	GBK	After the final cold-forming process the tubes are annealed in a controlled atmosphere or under vacuum.
Normalized	NBK	The tubes are annealed above the upper transformation point in a controlled atmosphere or under vacuum.