Click to enlarge
ST52.3 HONED TUBE for hydraulic cylinder
QUICK DETAILS:
lGrade:ST 52,stainless steel, alloy steel and special steel
lMetric size:
lInside diameter from 40 to 1000mm (skiving tube ID max 500mm),
lMax length 20m.
lStraightness: 0.5 /1000
Tolerance EXT: DIN 2391
Tolerance INT: ISO H8
Roughness(Ra): 0.2 to 0.4µ
lType:cold drawing, normalizing treatment, honing or skiving.
CHEMICAL COMPOSITION (%)
Si (Max) | Mn (Max) | C (Max) | P (Max.) | S (Max) |
0.55 | 1.60 | 0.22 | 0.025 | 0.025 |
MECHANICAL PROPERTIES
Tensile strength Min | Yield Point Min | Elongation % Min |
630 N/mm2 | 560 N/mm2 | 10 |
Marking: JW, ID, OD
Length: unfixed length or fixed length
Package: banding with steel strips, braiding parcel at outside
Conservation: Anti rust oiled coating on the inside and outside of the surface, plastic caps at both ends.
Impact test: -20°C, 27 J (only for special requirement)
MAJOR PRODUCTION PROCESS
TEST EQUIPMENT
MILL TEST CERTIFICATE
SGS TEST REPORT
COMPANY INFORMATION
ISO CERTIFICATE
2013 Exhibition Information
OUR ADVANTAGES OF HONED TUBE AND PISTON ROD
1.Our quality is the top five in China. Raw material is mainly from some famous refinery steel mills, such as BAO STEEL, Tianjin, and Chengdu etc, which are the best and largest raw material manufacturers in China. we have been through ISO9001:2000 international quality system certification. Warranty period for our honed tubes and chrome bars is 2 years. For some special or important customers, the period is 5 years. All the orders, records of production and inspection would be kept for 5 years.
2. We own 35 sets honing machines producing tube ID from 38.1mm to 1000mm, at max length of 18m.
We also have skiving & burnishing machine (made in Italy and Korea), which can make tube ID max 530mm.
3.We own 18 sets of equipment for piston rod in completely production, producing OD from 12mm to 500mm, at max length of 16m.
Plate according to customers’ different requirements such as Chrome, Nickel, and Ceramic. Thickness is from 10μm to 100μm.
4. High Precision:
Honed tube (Roughness of tube is 0.2μm and straightness is less than 0.15/1000), piston rod (Plating thickness is 10-100 micron. Surface roughness is 0.2μm and straightness is also less than 0.15/1000)
5. Product details are completely according to International Standard, chrome rod and honed tube must be cut flatly, and no chrome marks on the surface of rod. (Most of domestic mills don’t do this in order to reduce cost)
6. Delivery time is very fast. The average delivery time is 5-30 days after confirming the orders. Production output for honed tubes is about 300tons per month and 200tons for chrome bars per month.
7. Package: our packages are safer than others’ supplier in China. Packing for rod normally we choose is cardboard that film attached inside, which does not only prevent rods from scratch but also from oil rusting. Tubes are made with caps at both end and painted oil on inside and outside surface. For full container, extra package like parcel at outside will be used.