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DIN2391 High Precision Seamless Steel Pipe Cold Drawn ST35 ST45 ST52 Precision Carbon Steel Tube
DIN2391 High Precision Seamless Steel Pipe Cold Drawn ST35 ST45 ST52 Precision Carbon Steel Tube
Specifications
MOQ :
1 Ton
Price :
US $680-1,130 / Ton
Outer diameter :
6-630mm
Wall thickness :
0.5-15mm
Length :
max 25m
Section shape :
Round
Surface treatment :
Black
Material grade :
St35, St45, St52
Delivery condition :
BK, BKW, BKS, GBK, NBK
Chemical composition C :
0.17-0.22%
Chemical composition Si :
0.35-0.55%
Chemical composition Mn :
0.40-1.60%
Chemical composition P :
0.025% max
Chemical composition S :
0.025% max
Tensile strength :
480-640 N/mm²
Yield strength :
315-490 N/mm²
Elongation :
4-25%
Description
DIN2391 High Precision Seamless Steel Pipe
Cold drawn seamless precision carbon steel tubes manufactured to DIN2391 and EN10305 standards, available in grades ST37, ST45, and ST52. These high-precision pipes are ideal for hydraulic, pneumatic, and heat exchanger applications.
Product Specifications
Standards: ASTM, DIN, EN, GOST, SAE, JIS
Material Grades: Carbon Steel, Alloy Steel, or custom requirements
Outside Diameter: 19.05 mm
Wall Thickness: 2.11 mm
Length: 6m - 25m (custom lengths available)
Type: Cold Drawn or ERW
Ends: Plain ends or bevel ends
Key Features
  • No oxidation layer on outer and inner walls
  • No leakage under high pressure
  • No cracking during flattening and flaring tests
  • No distortion after cold bending
  • High precision and excellent surface cleanness
  • Superior performance for high pressure and temperature applications
  • Excellent corrosion resistance
  • Available with black finish or hot dip galvanized coating
Delivery Conditions
Designation Symbol Description
Cold finished (hard) BK Tubes do not undergo heat treatment after final cold forming
Cold finished (soft) BKW Limited deformation with final heat treatment
Cold finished and stress-relieved BKS Heat treatment applied after last cold forming process
Annealed GBK Annealing in controlled atmosphere after cold forming
Normalized NBK Annealing above upper transformation point
Chemical Composition
Grade C max Si max Mn P max S max
St 35 0.17 0.35 ≥0.40 0.025 0.025
St 45 0.21 0.35 ≥0.40 0.025 0.025
St 52 0.22 0.55 ≤1.60 0.025 0.025
Applications
  • Evaporators, heat exchangers, condensers, and heat transfer equipment
  • Mechanical treatment, petrochemical industry, transport, and construction
  • Structural purposes in construction and fulcrum bearings
  • Fluid transportation in projects and large equipment
  • Low and medium pressure boiler applications
  • Hydraulic and pneumatic services
  • Automotive and machinery components
Competitive Advantage
Asia's leading steel pipe manufacturer with production capacity exceeding 250,000 tons per year. Over 60% of production is exported to more than 35 countries worldwide. We deliver quality pipes and tubes at competitive prices with excellent customer service.
Product Images
DIN2391 High Precision Seamless Steel Pipe Cold Drawn ST35 ST45 ST52 Precision Carbon Steel Tube DIN2391 High Precision Seamless Steel Pipe Cold Drawn ST35 ST45 ST52 Precision Carbon Steel Tube DIN2391 High Precision Seamless Steel Pipe Cold Drawn ST35 ST45 ST52 Precision Carbon Steel Tube
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DIN2391 High Precision Seamless Steel Pipe Cold Drawn ST35 ST45 ST52 Precision Carbon Steel Tube

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Product Detail
MOQ :
1 Ton
Price :
US $680-1,130 / Ton
Outer diameter :
6-630mm
Wall thickness :
0.5-15mm
Length :
max 25m
Section shape :
Round
Contact Supplier
DIN2391 High Precision Seamless Steel Pipe Cold Drawn ST35 ST45 ST52 Precision Carbon Steel Tube

JIANGSU MITTEL STEEL INDUSTRIAL LIMITED

Verified Supplier
4 Years
jiangsu, wuxi
Business Type :
Manufacturer, Distributor/Wholesaler, Exporter
Main Products :
stainless steel roofing sheet, Stainless Steel Strip, Others stainless steel sheet
Total Annual :
>1000000
Employee Number :
>100
Certification Level :
Verified Supplier
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