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Honed Hydraulic Cylinder Steel Tube for Bulldozer
  • Honed Hydraulic Cylinder Steel Tube for Bulldozer
  • Honed Hydraulic Cylinder Steel Tube for Bulldozer
  • Honed Hydraulic Cylinder Steel Tube for Bulldozer
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: 5000 tons/month
Brand: Huijie
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.: E355/ST52.3

Product Description

Honed Hydraulic Cylinder Steel Tube,telescope cylinder tubing,high precision tubing

The honed steel tubing produced by seamless cold drawn tubes or ERW steel tubes,stress

relieving heat-treatment process before honing,skiving,rolling in the inner and outer surface.

1. Material: ST45, ST52, E355, E355SR, STKM13C, SAE1026, 20#, Q235B, CK45, CK20, 16Mn, 27SiMn etc

2. Standard: DIN2391 precision steel tubing, EN10305-1 cold drawn precision steel tubes , ASTM A513 DOM

Steel tubing,EN10305-2 welded precision tubing,

3. The honed tubing OD: 40-400mm

4. The cylinder tubes WT: 5-40mm

5. Steel tube length: Random (5-7m) or Fixed length as per order of confirmation

6. Steel tubing surface Polishing roughness: To 0.4Ra Max

7. Steel pipes supply Condition: BK(+C), BK+S (+SR) 

8. Technology: Honed tubing & SRB (SKIVED AND ROLLER BURNISHED steel tubing )

9. Hydraulic cylinder tubes Tolerance: Inner Diameter: ISO H8
Wall Thickness: Diameter >40, ±0.2mm; Diameter 40-100, ±0.3mm; Diameter >100, ±0.5mm

10. Application: For hydraulic cylinder, swivel crane, injection machine and construction machine,Bulldozer,telescope cylinders.

11. Technique: Cold Drawn seamless steel pipes and ERW welded steel tubing,DOM steel tubes

12. Test and Inspection: Tension Test, Flaring Test, Flange Test, Reverse Test, Hardness Test, Hydrostatic or Nondestructive

Electric Test etc

13.The hydraulic cylinder tubes chemical composition:

Steel grade C Si Mn P S Cr Ni Cu V Al
20 0.17-0.23 0.17-0.37 0.35-0.65 ≤0.035 ≤0.035 ≤0.25 ≤0.30 ≤0.25
45 0.42-0.50 0.17-0.37 0.50-0.80 ≤0.035 ≤0.035 ≤0.25 ≤0.30 ≤0.25
Q345B ≤0.20 ≤0.50 ≤1.70 ≤0.035 ≤0.035 ≤0.30 ≤0.50 ≤0.30 ≤0.15
Q345D ≤0.18 ≤0.50 ≤1.70 ≤0.030 ≤0.025 ≤0.30 ≤0.50 ≤0.30 ≤0.15 ≥0.015
27SiMn 0.24-0.32 1.10-1.40 1.10-1.40 ≤0.035 ≤0.035 ≤0.30 ≤0.30 ≤0.20
25Mn 0.22-0.29 0.17-0.37 0.70-1.0 ≤0.035 ≤0.035 ≤0.25 ≤0.30 ≤0.25
E355 ≤0.22 ≤0.55 ≤1.60 ≤0.025 ≤0.025 ≥0.02

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 and Cold Rolling, on line inspection

5. Heat Treatment, +A, +SRA, +LC, +N, Q+T

6. Straightening-Cutting to specified length-Finished Measuring Inspection


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

Hydraulic Honed TubeHydraulic Cylinder Steel Tube

Tags:cylinder tubes,hydraulic cylinder tubes,telescope cylinder tubes,steel tubes,steel tubing,high precision tubing,

cold drawn seamless steel tubes,cold drawn tubes,carbon steel tubes,DIN2391 steel tubes,DIN2391 St52.3 tubing,

EN10305-1 E355 steel tubes,E355+SR steel tubing,ERW steel tubes,cold drawn welded tubes,DOM steel tubing,

Honed Hydraulic Cylinder Steel Tube,Honed Tube Hydraulic Cylinder,steel tube honed.

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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