Pre Honed Tube
Zhejiang Dingxin Steel Tube Manufacturing Co., Ltd., founded in 2004, is a leading precision seamless steel tube manufacturer in China.
The steel pipes we manufacture primarily encompass hydraulic cylinder tube, automotive tube, tube for mining and drilling, as well as precision seamless steel tube.
Why Choose us
Our Certifications
Certified under ISO 9001 and IATF 16949.
Production Capacity
With an annual production capacity exceeding 30,000 tons.
Production Experience
Dingxin possesses over 20 years of experience in the production of precision seamless steel tubes, coupled with a fully integrated in-house manufacturing process and comprehensive quality management systems.
Parameter
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Product name |
ASTM A519 1026 pre honed tube |
|
Standard |
ASMT A519 |
|
Material |
1026 |
|
Dimension |
ID up to 12 inches, Length: less than 40 feet |
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Delivery condition |
Cold, Stress relieved and annealed |
|
Certificate |
ISO 9001, IATF 16949 |
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Applications |
Hydraulic cylinder for construction machinery, aerial working platform, material handling machinery, agriculture machinery and hydraulic jack |
|
Steel Grade |
C |
Mn |
P |
S |
|
1026 |
0.22-0.28 |
0.60-0.90 |
≤0.040 |
≤0.050 |
|
Delivery condition |
Cold Finished (Hard) |
Stress Relieved |
|||
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Material |
Tensile Strength (Mpa) |
Elongation (%) |
Tensile Strength (Mpa) |
Yield Strength (Mpa) |
Elongation (%) |
|
1026 |
≥640 |
≥8 |
≥600 |
≥520 |
≥15 |
Types of Pre Honed Tube
The pre honed tube produced by our company mainly include the following types:
Pre Honed Tube ST45 ST52 1026 E255 E355 20# 45# 25Mn Q345B 27SiMn
Pre honed seamless steel tube, also called ready to honed or ready to skived seamless steel tube, is used for production of hydraulic cylinder. The common materials for pre hone tube are ST45, ST52, 1026, E255 and E355. One main advantage of the pre honed seamless tube is the high precision dimension as compared to hot finished tubes. The tolerance is of tight control helps clients to save material waste and improve production efficiency.
ASTM A519 1026 Pre Honed Tube
ASTM A519 is specified for Seamless Carbon and Alloy Steel Mechanical Tubing. SAE 1026 is a low to medium carbon steel and it has good machinability and good weldability. The content of manganese is 0.6% to 0.9%, which increase the hardenability, hardness and strength. SAE 1026 is commonly used as raw material for pre honed tube.
DIN2391 ST45 ST52 BK BKS Pre Honed Tube
DIN 2391 a European standard that specifies dimensions and relevant technical conditions for seamless precision steel tubes. The main applications are mechanical and automotive engineering. DIN 2391 ST52 is a kind of low alloy steel, it is widely used for hydraulic cylinder tube because it has excellent weldability and cost-effective.
EN10305-1 E215 E235 E355 Pre Honed Tube
Pre honed steel tube or pre skived and roller burnished tubes are made from seamless cold finished precision steel tube for the cylinder barrel manufacturing. The inner diameter of cold drawn steel tube is designed to allow machining by either honing or skiving and roller burnishing. The tolerance of inner diameter is agreed upon clients’ request and outer diameter tolerance is according to EN 10305-1.
Precision and Accuracy
Pre honed tubes offer remarkable precision and accuracy, which are crucial in engineering applications. Engineers rely on these tubes to ensure that hydraulic systems function optimally. The honing process refines the interior surface of the tube, reducing friction and enhancing fluid movement. This precision directly impacts the performance of hydraulic cylinders, allowing them to operate smoothly and efficiently.
Durability and Longevity
The durability and longevity of pre honed tubes make them a preferred choice in various industries. These tubes resist wear and tear, even under high-pressure conditions. The cold drawn seamless steel used in their manufacture provides additional strength and resilience. Over time, the cost-effectiveness of pre honed tubes becomes evident as they require less frequent replacement and maintenance.
Application of Pre Honed Tube
Hydraulic equipment
Used for inner tubes of hydraulic cylinders and hydraulic systems.
01
Engineering machinery
Core components of hydraulic systems such as excavators, forklifts, loaders, etc.
02
Automotive industry
Used for parts that require high strength and precision machining, such as automobile suspension and braking systems.
03
Agricultural machinery
Hydraulic systems such as tractors and harvesters.
04
Energy industry
Pipelines, pumping stations and other equipment in the oil and gas industries.
05
Step 1. Raw material selection:
Select round bars of suitable size that meet the standards as raw material bars for processing;
Step 2. Billeting
Free forging and heat treatment process: The steel round bar is processed by billeting, free forging and heat treatment;
Step 3. Straightening
Forging hammer straightening on the treated raw material bar;
Step 4. Making mother tubes by hot rolling, hot extrusion or hot piercing
Make the mother seamless pipes from the round steel bars, through the manufacturing process of either hot rolling, hot extrusion or hot piercing.
Step 5. Cold drawing
Cold draw the seamless mother pipe to make cold drawn seamless tubes (cds tube), and to make it pre-honed tubes.
Step 6. Honing on the tube inner diameter
The id (inner diameter) of the tube is honed with honing stone, so that the through inner diameter of the tube can meet the size and machining accuracy requirements of seamless honed tubes;
Step 7. Inspection and packing:
Inspect the finished honed tubes according to customers’ requirements and corresponding standards, to ensure they can meet the required size and machining accuracy requirements, mechanical properties, chemical compostions, etc.
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Payment |
30% advance payment, 70% balance against B/L copy. |
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Packaging |
Long pipe: Hexagonal bundles with steel-hooped. |
Certificate
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