Honed Tube for Hydrulic Cylinder ST45 ST52 1026 E255 E355 20# 45# 25Mn Q345B 27SiMn
Material: ST45 ST52 1026 E255 E355 20# 45# 25Mn Q345B 27SiMn
Dimension: ID 50-250mm, WT3-32mm, Length: less than 12m
Certificate: ISO 9001, IATF 16949
Honed tube for hydraulic cylinder, also called honed tube or SRB (skived and roller burnished) tube, is the most important part for manufacturing hydraulic cylinders. Honed tube or SRB tube is honed or skived in the inside diameter of a pre honed tube or pre SRB tube. The tubes are dimensioned by their inside diameter and wall thickness.
Product Details
|
Product name |
Honed tube for hydraulic cylinder ST45 ST52 1026 E255 E355 20# 45# 25Mn Q345B 27SiMn |
|
Standard |
DIN 2391, EN 10305-1, ASTM A519, GB/T 3639 |
|
Material |
ST45 ST52 1026 E255 E355 20# 45# 25Mn Q345B 27SiMn |
|
Dimension |
ID 50-250mm, WT3-32mm, Length: less than 12m |
|
Delivery condition |
Stress Relieved Annealed (SRA), Cold (Hard) or others based on client’s requirement |
|
Roughness |
Ra 0.2~0.4μm |
|
ID tolerance |
H7~H9 |
|
Straightness |
0.5/1000mm |
|
Applications |
Hydraulic cylinder for construction machinery, aerial working platform, material handling machinery, agriculture machinery and hydraulic jack |
|
Packaging |
Oil pipe, plastic heads on both ends |
|
Marking |
Plant logo, Specification, Material, Steel Grade, Delivery condition, Size , Heat Number |
Chemical Composition
|
Steel Grade |
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Cu |
|
ST45 |
≤0.21 |
≤0.35 |
≥0.40 |
≤0.025 |
≤0.025 |
|
|
|
|
ST52 |
≤0.22 |
≤0.55 |
≤1.60 |
≤0.025 |
≤0.025 |
|
|
|
|
1026 |
0.22~0.28 |
|
0.60~0.90 |
≤0.040 |
≤0.050 |
|
|
|
|
E255 |
≤0.17 |
≤0.35 |
≤1.20 |
≤0.025 |
≤0.025 |
|
|
|
|
E355 |
≤0.22 |
≤0.55 |
≤1.60 |
≤0.025 |
≤0.025 |
|
|
|
|
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 |
|
25Mn |
0.22~0.29 |
0.17~0.37 |
0.7~1.00 |
≤0.035 |
≤0.035 |
≤0.25 |
≤0.30 |
≤0.25 |
|
27SiMn |
0.24~0.32 |
1.10~1.40 |
1.10~1.40 |
≤0.035 |
≤0.035 |
≤0.30 |
≤0.30 |
≤0.30 |
Mechanical Properties
|
Delivery condition |
Cold finished (Hard) |
Stress Relieved |
|||
|
Material |
Tensile Strength (Mpa) |
Elongation (%) |
Tensile Strength (Mpa) |
Yield Strength (Mpa) |
Elongation (%) |
|
ST45 |
≥580 |
≥5 |
≥520 |
≥375 |
≥12 |
|
ST52 |
≥640 |
≥4 |
≥580 |
≥420 |
≥10 |
|
1026 |
≥640 |
≥8 |
≥600 |
≥520 |
≥15 |
|
E255 |
≥480 |
≥6 |
≥420 |
≥350 |
≥16 |
|
E355 |
≥640 |
≥4 |
≥580 |
≥450 |
≥10 |
|
20# |
≥580 |
≥8 |
≥580 |
≥480 |
≥15 |
|
45# |
≥680 |
≥7 |
≥630 |
≥520 |
≥12 |
|
Q345B |
≥660 |
≥8 |
≥620 |
≥520 |
≥15 |
|
25Mn |
≥640 |
≥8 |
≥620 |
≥510 |
≥15 |
|
27SiMn |
≥840 |
≥8 |
≥800 |
≥720 |
≥10 |
Finished ID tolerances (mm)
|
ID size (mm) |
ID tolearance (mm) |
||
|
H7 |
H8 |
H9 |
|
|
30 |
0.021 |
0.033 |
0.052 |
|
＞30~50 |
0.025 |
0.039 |
0.062 |
|
＞50~80 |
0.03 |
0.046 |
0.074 |
|
＞80~120 |
0.035 |
0.054 |
0.087 |
|
＞120~180 |
0.040 |
0.063 |
0.1 |
|
＞180~250 |
0.046 |
0.072 |
0.115 |
|
＞250~315 |
0.052 |
0.081 |
0.14 |
|
＞315~400 |
0.057 |
0.089 |
0.17 |
Advantages
● Dingxin adopt raw materials from leading mill in China like TPCO, Bao steel, etc. Thus the seamless honed tubes have top-quality micro-finished inside surface.
● Dingxin’s hydraulic cylinder tube is characterized by low roughness values Ra≤0.20µm SRB
● The tolerance class for the machined inside diameter of seamless honed tubes is H7 to H9
● The eccentricity for hydraulic cylinder tube is within 10%
How we guarantee our quality
● 100% raw material chemical analysis verified and segmented, no mix-up
● Geometric dimensioning check especially for the finished ID tolerance
● Roughness test
● Mechanical testing
● 100% visually checked to assure perfect surface condition and no surface defects
FAQ
1. Q: Are you a trading company or manufacturer?
A: Dingxin is a profession steel tube manufacturer locating in Jiaxing City, Zhejiang Province.
2. Q: Are the products tested before shipping?
A: Our quality control team will do in process and final product quality check, in terms of dimensions, mechanical properties, inner and outer surface and etc.
3. Q: How long is your delivery time?
A: Generally it takes 30-40 days to manufacture the pipes.
4. Q: Can l visit your factory?
A: You are highly welcome to visit our factory. We will provide VISA help service and try to pick you up if possible.
Why choose us?
- We offer a comprehensive range of Honed Tube products that are designed to meet the needs of various industries.
- Over the years, the company has taken "creating socially satisfying needs, creating a stage for value realization" as its corporate purpose, and "pursuing excellence and surpassing brilliance" as its corporate goal. It strives for development, constantly denies and surpasses itself, and creates a unique enterprise. Culture, and gradually formed the enterprise spirit of "integrity, dedication, cooperation and innovation".
- At our factory, we use the latest technology and machinery to manufacture Honed Tubes that are dependable and durable.
- The purpose of our factory: to create an excellent enterprise with the best products, the cheapest prices, and the best services. The factory strictly abides by the corporate tenet and is based on honesty. We warmly welcome friends from all walks of life at home and abroad to visit us for mutual benefit and common development.
- We continually invest in research and development to ensure that our Honed Tube products remain at the forefront of the industry.
- Our mission will be to grow to be an innovative supplier of high-tech digital and communication devices by giving worth added design and style, world-class production, and service capabilities for Honed Tube for Hydrulic Cylinder ST45 ST52 1026 E255 E355 20# 45# 25Mn Q345B 27SiMn.
- With years of experience in Honed Tube production, we have become one of the leading suppliers in our industry.
- After years' research and development, we adopt advanced technology and techniques to produce a new generation of Honed Tube for Hydrulic Cylinder ST45 ST52 1026 E255 E355 20# 45# 25Mn Q345B 27SiMn.
- We work closely with our customers to understand their specific needs and provide them with the best Honed Tube products and services.
- Our highly advanced infrastructure facility has enabled us to furnish the numerous preferences and necessities of our precious patrons in a well-defined manner.
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