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DIN2391/C Bright Precision Steel Tube

Availability:
Quantity:
  • 6x1-42x3mm

  • Xuzhou Global

  • 73043190

Product Introduction

Standard: GB/T3639,DIN2391/C,EN10305-1,EN10305-4

Heating treatment: NBK, GBK, BKS, BK

Surface treatment: Bright, galvanized, phosphated

Material: ST37.4,ST35,ST45,ST52,E235,E355

Size: OD 4*WT 0.5mm -OD60*WT8mm

Length: Fixed Length 6 meters or 5.8 meters, Random Length 2-12 meters or as requests of customers

Feature:

No oxide layer on both sides of tube

High pressure, no leakage

High precision, smooth surface

Cold bending without deformation

No crack during flaring and flattening

Anti-rust on inside and outside


Chemical Composition:

Steel gradeChemical composition%
CSiMnPS
ST37.4/E2350.07~0.130.17~0.370.35~0.65≤0.035≤0.035
ST350.07~0.130.17~0.370.35~0.65≤0.035≤0.035
ST450.17~0.230.17~0.370.35~0.65≤0.035≤0.035
ST52/E3550.13 〜0.190.20 〜0.601.20 〜1.60≤0.030≤0.030

Mechanical Property:

Steel gradeYield strength aTensile strengthElongation
ReHRmA
min.min.min.
MPaMPa%
ST37.4/E235≥235340 to 480≥25
ST35≥235340 to 480≥25
ST45≥255410 to 520≥25
ST52/E355≥355490 to 630≥22

Tolerance:

OD/mmTolerance/mmID/mm Tolerance/mmStraightness/mm
4~30±0.08±0.08~±0.150.1/1000
30~38±0.15±0.15~±0.20
38~50±0.20±0.20~±0.25
50~80±0.25~±0.35±0.25~±0.35


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The products of our company are:precision steel pipes, honed tubes & piston rods for hydraulic cylinders. As one of the leading manufacturers in China, confirming to DIN2391/C, EN10305 and SAE J524 standard.
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