We have firmly occupied the S20C Cold Drawn Honed Tube, Big Cylinder Honed Tubes Honing Pipe, 1020 Cold Drawn Pipe market with advanced technology, high quality products, perfect service, and excellent price-performance ratio, and our products are sold at home and abroad. We will continue to develop, to provide the high-quality products and services, and promote lasting cooperation with our customers. For a long time, our company has paid special attention to scientific research investment, and we adhere to the people-oriented concept of scientific research, develop.
Seamless Honing Tube Introduction
WUXI HENGTONG PETROLIC MACHINERY manufactures pre honed tubes, ready to hone tubes, honed tubes, skived and roller burnished tubes, chrome bar, piston rods and high-precision cold-drawn steel tubes, We are well-equipped with 300 ton, 150 ton, 65 ton, 20 ton of cold drawing machine,9 meters CNC boring machines, 20 sets honing machines , one set furnace and advanced quality testing equipment, which combine cold drawn, cold-rolled, heat treatment and traditional machining process.
Seamless Honing Tube Details
Standard: DIN
Standard2: DIN 2391
Thickness: 5 - 30 mm
Section Shape: Round
Outer Diameter(Round): 40 - 400 mm
Place of Origin: Jiangsu, China (Mainland)
Application: Hydraulic Pipe
Name: st52 cold drawn seamless honed tube for hydraulic cylinder
Brand: Hengtong
Type: seamless
Material:A106B,CK45,ST52/E355,25Mn,27SiMn
Process: cold drawn ,honing,chroming
Length: ≤12m
ID tolerance: H8
Roughness: 0.2-0.4um
Condition: BKS/SR
St52 cold drawn seamless honed tube for hydraulic cylinder Product Description
*OD:40-400mm
*Thickness: ≥4mm
*Roughness: 0.2
*H8 tolerance
*BKS/SR condition
Chemical compisition
Material | C | Si | Mn | S(≤) | P(≤) | Cr | Ni | Mo | other |
C20# | 0.17-0.23 | 0.17-0.37 | 0.35-0.65 | 0.035 | 0.035 | ≤0.25 | ≤0.30 |
| Cu≤0.25 |
CK5# | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | 0.035 | 0.035 | ≤0.25 | ≤0.30 |
| Cu≤0.25 |
Q345B | ≤0.20 | ≤0.55 | 1.00-1.60 | 0.04 | 0.04 | V:0.02-0.15 | Nb:0.015-0.06 | Ti:0.02-0.20 | Alt≥0.015 |
ST52 | ≤0.20 | ≤0.55 | 1.00-1.60 | 0.045 | 0.045 | V:0.02-0.15 | Nb:0.015-0.06 | Ti:0.02-0.20 | 16Mn |
25Mn | 0.22-0.30 | 0.17-0.37 | 0.70-1.00 | 0.035 | 0.035 | ≤0.25 | ≤0.25 |
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27SiMn | 0.24-0.32 | 1.10-1.40 | 1.10-1.40 | 0.03 | 0.03 |
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42SiMn | 0.39-0.45 | 1.10-1.40 | 1.10-1.40 | 0.03 | 0.03 |
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42CrMo | 0.38-0.45 | 0.17-0.37 | 0.50-0.80 | 0.025 | 0.025 | 0.90-1.20 |
| 0.15-0.25 |
|
Hydraulic&pneumatic liner actuator standard/size/precise
Working method | Cylinder ID (mm) | Length | Straightness | Tolerance on ID | Tolerance on WT | Roughness |
Cold drawn | 40-320 | ≤12M | 0.2-0.5 | / | ±5% | 0.8-1.6 |
Cold rolling | 30-100 | ≥12M | 0.2-0.5 | / | ±5% | 0.8-1.2 |
Cold drawn-honed | 40-500 | 8M | 0.2-0.3 | H8-H9 | ±5% | 0.2-0.8 |
Cold drawn-skived | 40-400 | 9M | 0.2-0.3 | H8-H9 | ±5% | ≤0.4 |
Hole boring-honed | 320-400 | 8M | 0.2-0.3 | H7-H9 | ±8% | ≤0.8 |
Hole boring-skived | 320-400 | 9M | 0.2-0.3 | H8-H9 | ±8% | ≤0.4 |

Our company is in the forefront of Seamless Steel Honed/Honing Tube St52 DIN2391 for Hydraulic Cylinder industry in terms of financial strength, production scale, technical strength and sales performance. We have a professional design and technology research and development team, and we have formed a complete set of production management, quality management, marketing management and service management systems. We sincerely welcome friends from all around the globe to cooperate with us within the foundation of long-term mutual benefits.
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