High Quality DIN2391 St52 BK, Cold Worked Steel Tube, DIN2391 Steel Tube Suppliers in China

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DIN2391 St52 BK Cold Worked Steel Tube

  • DIN2391 St52 BK Cold Worked Steel Tube
  • DIN2391 St52 BK Cold Worked Steel Tube
  • DIN2391 St52 BK Cold Worked Steel Tube

DIN2391 St52 BK Cold Worked Steel Tube

    Payment Type: T/T
    Terms of Trade: FOB,CFR,CIF,FCA
    Min. Order: 1 Ton
    Delivery Time: 45 Days
    Packaging: Bundles Package, Wooden Box
    Productivity: 3000 tons/month
    Brand: Hujie
    Transportation: Ocean
    Place of Origin: Zhejiang, China
    Supply Ability: 3000 tons/month
    Certificate: ISO9001-2008, TS16949
    HS Code: 73043190
    Port: Shanghai,Ningbo

Basic Info

Model No.: DIN2391

Product Description

DIN2391 St52 BK Cold Worked Seamless Steel Tubes

Precision Seamless Steel Tubes DIN2391 / EN10305-1 / ASTM A519

Material: St35, St45, St52
Size Range: OD: 6-88mm, WT: 1-15mm, Length: 5.8m/6m, maximal 11.8m
Delivery Condition: BK, BKW, BKS, GBK, NBK


Application: For high precision purpose, auto industry, like manipulator, Shock Absorber, Transmission Shaft, Steering Gear, Car Frame, etc.
Stable Quality with Comeptitive Price.
+N(Bright Annealing) Heat Treatment, Surface is bright and smooth, without oxide scale
Good Extending and Bending Ability.


Quality Control:
1. Incoming Raw Material Inspection
2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Drawing or Cold Rolling, On line inspection
5. Heat Treatment:+SR, +A, +N
6. Straightening/Cutting to specified length/Finished Measuring Inspection
7. Quality Testing in own lab with Tensile Strength, Yield Strength, Elongation, Hardness, Straightness, etc.
8. Packing and Stocking.


100% Eddy Current Testing.
100% Size Tolerance Checking.
100% Tube surface checking to avoid surface defects.


Product Name DIN2391 Precision Seamless Cold Drawn Steel Pipes
Material St35, St45, St52
Delivery Condition BK, BKW, BKS, GBK, NBK
Standard EN10305-1 / DIN2391 / EN10305-4
Size Range OD: 6-88mm, WT: 1-15mm
Application High precision purpose, auto parts, oil cylinder, etc
Round Billet Bao Steel, Xingcheng Steel, Zhongtian Steel
Keyword Seamless Steel Tube
Certificate TS16949, ISO 9001
HS code 7304319000
Delivery Time 45 days
Pakcing Bundles or Woodern Boxes


Steel Grade Chemical Composition
Symbol Material Number

C

Max.

Si

Max.

Mn

P

Max.

S

Max.

ST35 1.0308 0.17 0.35 ≥0.40 0.025 0.025
ST45 1.0408 0.21 0.35 ≥0.40 0.025 0.025
ST52 1.0580 0.22 0.55 ≤1.60 0.025 0.025


Steel Grade BK BKW BKS
Name No.

Rm

Mpa

A

%

Rm

Mpa

A

%

Rm

Mpa

ReH

Mpa

A

%

ST35 1.0308 480 6 420 10 420 315 14
ST45 1.0408 580 5 520 8 520 375 12
ST52 1.0580 640 4 580 7 580 450 10

Steel Grade GBK NBK
Name No.

Rm

Mpa

A

%

Rm

Mpa

ReH

Mpa

A

%

ST35 1.0308 315 25 340--470 235 25
ST45 1.0408 390 21 440--570 255 21
ST52 1.0580 450 22 490--630 355 22

DIN2391 St52 BKPrecision Steel Tube

Ningbo Huijie Steel Pipe Manufacturing Co.,Ltd

 

Ningbo Huijie Steel Pipe Manufacturing Co.,Ltd was Founded in 2002, the company mainly manufacturing seamless carbon steel tubes and alloy steel tubes, The products are mainly used in automobile, machinery, bearing, high pressure boiler and Other industries. In 2011, our company built a new factory focusing on the production of bearing steel tubes,Which covers an area of 45000 ㎡, with capacity of 60,000 tons/year, equipment and environmental protection standards reach the advanced level of the domestic counterparts, has passed ISO/TS 16949 quality management system certification. The company has more than 500 employees, more than 80 professional technical personnel, the key process is equipped with PLC automatic Temperature control perforation heating, spheroidizing annealing furnace, recrystallization annealing furnace, and a variety of supporting cold rolling, cold drawing processing lines. Equipped with advanced direct reading spectrum, metallographic analysis, hardness test and other physical and chemical testing equipments and eddy current, ultrasonic non-destructive testing equipments to reach the quality of products with superior assurance conditions. From 2018,Our annual production output about 75,000tons of bearing steel tubes and carbon steel tubes, By 2019, the group's steel pipe production capacity is expected to exceed 110,000 tons. Since 2018,Ningbo Huijie start for exporting through our own branch company Ningbo pipeway,Till now,we exported bearing steel tubes and Carbon steel pipes to Canada, USA, Mexico, Peru, Chile, Thailand, Malaysia, Russia, Iran, Germany, Spain, Netherland, Japan, South Korea Australia, etc about 12 countries.

Company Info

  • Company Name: Ningbo Huijie Steel Pipe Manufacturing Co.,Ltd
  • Representative: Mr.Kevin
  • Product/Service: Seamless Bearing Tubes , Mining Drill Pipes , Boiler Steel Tubes , Alloy Mechanical Tubing , Precision Steel tubes , Stainless Steel tubes
  • Capital (Million US $): 1.45
  • Year Established: 2002
  • Total Annual Sales Volume (Million US $): Above US$100 Million
  • Export Percentage: 11% - 20%
  • Total Annual Purchase Volume (Million US $): Above US$100 Million
  • No. of Production Lines: 50
  • No. of R&D Staff: 41 -50 People
  • No. of QC Staff: 51 -60 People
  • OEM Services Provided: yes
  • Factory Size (Sq.meters): 50,000-100,000 square meters
  • Factory Location: Industrial Park,Zhangting Town,Yuyao City,Ningbo City,Zhejiang Province,China
  • Contact Person: Mr. Kevin
  • Tel: 86-0574-87491308
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