Our company adopts a standardized production process, from production research and development, quality inspection, to after-sales service, there is a complete set of processes to ensure that we can provide our customers with high-quality Seamless Cold Drawn Tube, Srb Honed Tube, St52 Honed Tube and considerate services. Remember to note that samples are available before we start our business enterprise. Our company will become a veritable expert in the application our products. The above items have passed professional certification, and we not only can produce OEM-standard items but we also accept Customized Merchandise order.
St52 Hydraulic Steel Tubes Introduction
Honed Tubes are presicion tubes with smooth inside, they also could be skived and burnished pipe. Tubes or pipes inside tolerance could be H10, H9 or H8. Outside tolerance, wall thickness tolerance are produced according to seamless cold drawn tubes for precision application standard GB/T3639-2009,EN10305 or DIN2391 standard. Material SAE1020, 20#, ST45, CK45, ST52, E355 tubes and so on for you to choose.
Hydraulic Steel Tube technical parameters and Details
Application: hydraulic cylinder, pneumatic cylinder, oil cylinder, telescopic cylinder.
Original: Jiangsu, China
Certification: ISO9001.
Material: SAE1020, 20#, ST45, CK45, ST52, E355
Payment term: TT, LC
Delivery date: usually 20 to 40 days.
Packing: packed in bundle, oiled inside, with caps on both ends.
Market: Middle East/ Africa/Asia/South America/Europe/North America
MOQ: Depends on exact size and material.
Hydraulic cylinder hard chrome plated piston rod and honed tube For pipes / tubes:
1. Material we have :
DIN2391 standard ST52, St45, EN10305 standard E355,E255, ASTM A106B grade, 16Mn, C20/20#, CK45
2. Chemical composition:
|
Material |
C |
Si |
Mn |
S(≤) |
P(≤) |
Cr |
Ni |
Mo |
other |
|
A106B/ C20# |
0.17—0.23 |
0.17—0.37 |
0.35—0.65 |
0.035 |
0.035 |
≤0.25 |
≤0.30 |
Cu≤0.25 |
|
|
CK45# |
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 |
0.040 |
0.040 |
V:0.02-0.15 |
Nb:0.015-0.06 |
Ti:0.02-0.20 |
Alt≥0.015 |
|
ST52 E355 16Mn |
≤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 |
||
|
27SiMn |
0.24—0.32 |
1.10—1.40 |
1.10—1.40 |
0.030 |
0.030 |
||||
|
42SiMn |
0.39—0.45 |
1.10—1.40 |
1.10—1.40 |
0.030 |
0.030 |
||||
|
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 |
After-sales service:
1. Where to buy our products for one year warranty and life long maintenance.
2. 24-hour telephone service.
3. A large stock of components and parts, easily-worn parts.
Production process
Raw material – annealing for material of 45#, 27SiMn, 25Mn – Acid cleaning – parkerizing & Saponifying – cold drawn – leveling – saw off bad section – stress relieving – leveling –honing or skiving – inspection – oiled plated - packing
Quality control
1. We only buy raw material from famous tube factory, and Checking raw material quality before production.
2. We check the tube ID tolerance, OD tolerance and surface after cold drawn one by one.
3. We inspect the honed tube inside tolerance and surface again one by one after honing or skiving.
To create much more price for clients is our company philosophy; purchaser growing is our working chase for Seamless Steel Tube for Hydraulic Cylinder St52 Q345b E355. It is our obligation to ensure all customers of quality products at very competitive prices. We are fully committed to customer service satisfaction and confidence in our products, our products are produced in strict accordance with relevant requirements, you can buy them with confidence! We have advanced production technology, and pursuit innovative in products.
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