St35 St52.3 DIN2391 Precision Bright Surface Seamless Steel Tube

Model NO.
ST35 ST52.3 DIN2391 Precision Bright Surface Seaml
Surface Treatment
Polished
Transport Package
Full
Specification
customized
Trademark
liaocheng
Origin
Liaocheng
HS Code
7214100000
Production Capacity
5000pieces One Year
Reference Price
$ 594.00 - 603.00
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Product Description

1. Description:
The DIN2391 steel  tubes have closer dimensional tolerances, better surface finish and higher mechanical properties than the corresponding grades of hot finished seamless tubes.
2. Application:
High Precision Steel Tube is used in automotive industry, and in the occasion where the high accuracy, brightness, cleanness of the tube are required.
3. Main Features:
l Superior surface finish
l High yield strength
l Dimensional accuracy and excellent micro-structure uniformity
l Enhanced machinability
l High strength to weight ratio
l Tight tolerances, resulting in reduced machine time
l Possible spiraling eccentricity inherent in product
4. Quality Standard:
DIN 2391 Seamless precision steel tube
BS EN 10305-1 Seamless cold drawn tubes
BS EN 10305-4 Seamless cold drawn tubes for hydraulic and pneumatic power systems
BS 6323-4 Cold finished seamless steel tube
ASTM A519 Seamless Carbon and alloy steel mechanical tubing
JIS G3441 Alloy Steel Tube for machine purpises
JIS G3445 Carbon steel tube for machine structural purposes
5. Delivery Conditions:
+C (BK) Hard. No final treatment after final cold rolling.
+LC (BKW) Soft. Final heat treatment is followed by a suitable drawing pass (limited reduction of area).
+SR (BKS) Stress Relieved. After final cold rolling, the tubes are stress relieved in a controlled atmosphere.
+A (GBK) Annealed. After final cold rolling, the tubes are annealed in a controlled atmosphere.
+N (NBK) Normalized. After final cold rolling, the tubes are normalized in a controlled atmosphere.
St35 St52.3 DIN2391 Precision Bright Surface Seamless Steel Tube St35 St52.3 DIN2391 Precision Bright Surface Seamless Steel Tube St35 St52.3 DIN2391 Precision Bright Surface Seamless Steel Tube
6. Mechanical Properties( T=20ºC if not differently stated ):
Grades Delivery Conditions Tensile Strength Rm (Mpa) Yield Strength R2 (Mpa) Elongation in the longitudinal direction Al (%)
St 35 +C (BK) 480 min / 6 min
St 35 +LC (BKW) 420 min / 10 min
St 35 +SR (BKS) 420 min 315 min 14 min
St 35 +A (GBK) 315 min / 25 min
St 35 +N (NBK) 340-470 235 min 25 min
St 52 +C (BK) 640 min / 4 min
St 52 +LC (BKW) 580 min / 7 min
St 52 +SR (BKS) 580 min 420 min 10 min
St 52 +A (GBK) 490 min / 22 min
St 52 +N (NBK) 490-630 355 min 22 min

 

Stainless Steel