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Read MoreQuick ViewA513 DOM Steel Tube
ASTM A513 standard for carbon and alloy Electric Resistance Welded (ERW) tubing for mechanical applications. It can be classified Type1 (Hot Rolled Electric Resistance Welded), Type 2 (cold rolled) and Type 5(Drawn Over Mandrel) according to its treatment processing. The Drawn Over Mandrel (DOM) tubing has excellent concentricity, smooth outer and inner wall thickness than its ERW products, often used in the automotive, appliance and construction industries.
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Read MoreQuick ViewEN10305-5 Welded Rectangular Tube
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Read MoreQuick ViewEN10305-5 Welded Square Tube
The European norm EN 10305-5 specifies the requirements for unalloyed carbon steel welded square and rectangular tubes for precision systems. These tubes are intended for use in the construction of greenhouses, scaffolding and fences and have different specific dimensional tolerances.
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Read MoreQuick ViewBlack Phosphate Precision Tube
Main Features: high accuracy, excellent brightness, no oxidization on the outer and inner walls after heat treatment, high cleanness inside wall. The steel tube is able to stand high pressure. No deformation after cold bending, no crack after flaring and flattening . The complicated geometrical forming and machining can be realized. bright black. Color is homogeneously distributed on the tube surface. The tube has good property of antirust.
Main Application: to be used in hydraulic system, automobile and in the occasion where the high precision, brightness, cleanness and mechanical properties of the tube are required.If any questions, please contact sales@grandsteeltube.com
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Read MoreQuick ViewAir Cylinder’s Steel Tube
Synopsis of Process Routing: quality carbon steel → cold rolling→ bright heat treatment without oxidization (NBK status) → nondestructive testing. In the wall honing and inside flushing under the high pressure→. Antirust oiling outside surface→ plastic capping on both ends.
Main Features: high accuracy, excellent brightness, no oxidization on the outer and inner walls after heat treatment, high cleanness inside wall. The steel tube is able to stand high pressure. No deformation after cold bending, no crack after flaring and flattening . The complicated geometrical forming and machining can be realized. Color of tube: gray with white.
Main Application: to be used in hydraulic system, automobile and in the occasion where the high precision, brightness, cleanness and mechanical properties of the tube are required.If any questions,please contact sales@grandsteeltube.com
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Read MoreQuick ViewWhite galvanized steel tubes
When producing galvanized steel tubes, we utilize advanced technical processing and use a chemical liquid imported from Germany. Both the inner and outer surfaces of the high precision steel tubes can be galvanized, giving them a high homogeneity and an excellent rust resistant performance.
Zinc wall thickness 8-12um, and customized as per customer requirements. Salt spray test: common requirements- 80-120 hours, high requirements- 120-300 hours Cr+6 free, environmental typeProcess Description
Using a high precision, fine drawn bright seamless steel tube as the steel pipe for galvanizing, the outer wall of the steel pipe is cold-galvanized, and both ends are covered for dust protection.
If any questions,please contact sales@grandsteeltube.com
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Read MoreQuick ViewYellow Galvanized Steel Tube
1. We use high quality raw materials. All raw materials are supplied from internationally known steel makers.
2. Each batch of raw material is checked for both chemical and mechanical properties, according to specifications.
3. During the cold drawing process, our inspectors check every bundle three times: once at the beginning of the process, once during the middle, and finally, at the end of the cold drawing process.
4. During the final heat treatment, every bundle has the surface checked, as well as mechanical properties through samplings.
5. Non-destructive testing and manual inspection for each tube ensure the 100% quality rate before galvanizationIf any questions,please contact sales@grandsteeltube.com
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Read MoreQuick ViewOlive Green Galvanized Steel Tube
1. We use high quality raw materials for the olive green galvanized steel tube. All raw materials are supplied from internationally known steel makers.
2. Each batch of raw material is checked for both chemical and mechanical properties, according to specifications.
3. During the cold drawing process, our inspectors check every bundle three times: once at the beginning of the process, once during the middle, and finally, at the end of the cold drawing process.
4. During the final heat treatment, every bundle has the surface checked, as well as mechanical properties through samplings.
5. Non-destructive testing and manual inspection for each tube ensure the 100% quality rate before galvanizationIf any questions,please contact sales@grandsteeltube.com
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Read MoreQuick ViewEN10305-3 Welded Precision Steel Tube
EN10305-3 Welded cold sized tubes
The tubes shall be manufactured from steel strip by electric welding. The tubes shall not included welds used for joining of flat rolled strip prior to forming the tube, except for coiled tubes which may be supplied in the delivery conditions +A and +N
Possible surface conditions are :
S1 black
S2 pickled
S3 cold rolled
S4 coated to an agreed condition
Note: The surface conditions S1 and S3 apply for the strip. The surface condition S2 and S4 may apply for the strip or the tube; the purchaser should, where necessary, indicate the condition at the time of enquiry and order.
Tubes made of the steel grade E155 E195 E235 and E355 shall be supplied in the delivery condition +CR1 or +N. Tubes made of the grades E190 E220 E260 E320 E370 and E420 shall be supplied in the delivery conditions +CR2
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Read MoreQuick ViewEN10305-2 Welded & Redrawn Steel Tube
- Precision in combination with a high quality surface finish are the features that characterise our fine tolerance steel tubing
- ERW feedstock tubes are manufactured from specially prepared pickled, oiled and cold or hot rolled steel coil.
- Resistance-pressure-welding Therefore, the weld is created from the base material without any filler material
- The removal of the excess material, both internally and externally, is a key element in the manufacturing process and this is an in-house skill.
- The cold drawing process occurs after annealing and raises the quality of the feedstock tube to vastly superior levels of tolerance, surface finish and final material mechanical properties.
- In some instances the final finished product specification can be further fine tuned by further annealing. This is of particular interest in relation to products that are specifically manufactured to unique customer specifications.
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Read MoreQuick ViewShock Absorber Steel Tube
Shock absorber precision steel tubes are suspension components that are responsible for absorbing the impact of avehicle’s movements. Through the shocks, the vehicle’s bounce cycle is cut short. If the car encounters abump on the road, it will still bounce; however, the shocks will shorten its bounce so that the driver and passengers will hardly feel it.
If any questions,please contact sales@grandsteeltube.com
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Read MoreQuick ViewEN10305-3 Plastic Coating Welded Carbon Steel Tube
The tubes shall be manufactured from steel strip by electric welding. The tubes shall not included welds used for joining of flat rolled strip prior to forming the tube.
Possible surface conditions are :White plastic coating,Black plastic coating,Green plastic coating etc Other coating can be achieved after discussion.
OD:18mm to 60mm WT:1.00mm to 3.00mm Length:6000mm to 12000mm
Application:Used for the greenhouse cultivation,other construction purposes.
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Read MoreQuick ViewEN10305-3 welded precision tube for automotive industry
The tubes shall be manufactured from steel strip by electric welding. The tubes shall not included welds used for joining of flat rolled strip prior to forming the tube, except for coiled tubes which may be supplied in the delivery conditions +A and +N
Possible surface conditions are :
S1 black S2 pickled S3 cold rolled S4 coated to an agreed condition
Note: The surface conditions S1 and S3 apply for the strip. The surface condition S2 and S4 may apply for the strip or the tube; the purchaser should, where necessary, indicate the condition at the time of enquiry and order.
Tubes made of the steel grade E155 E195 E235 and E355 shall be supplied in the delivery condition +CR1 or +N. Tubes made of the grades E190 E220 E260 E320 E370 and E420 shall be supplied in the delivery conditions +CR2
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Read MoreQuick ViewEN10305-3 Low Carbon Steel Tube
Steel GradeChemical CompositionSymbolMaterial NumberCMax.SiMax.MnMax.PMax.SMax.E1551.00330.110.350.700.0250.025E1951.00340.150.350.700.0250.025E2351.03080.170.351.200.0250.025E2751.02250.210.351.400.0250.025E3551.05800.220.551.600.0250.025Steel Grade+C+LC+SRNameNo.RmMpaA%RmMpaA%RmMpaReHMpaA%E1551.003340063501035024518E1951.003442063701037028018E2351.030849064401044032514E2751.02255605510851037512E3551.05806404590659043510Steel Grade+A+NNameNo.RmMpaA%RmMpaReHMpaA%E1551.003326028270–41015528E1951.003429028300–44019528E2351.030831525340–48023525E2751.022539021410–55027521E3551.058045022490–63035522 -
Read MoreQuick ViewEN10305-2 Welded Steel Tube
EN10305-2 Welded Cold Drawn Steel Tube for Precision Applications
1. Size Range: OD: 6-89mm, WT: 1-3mm, Length: 5.8m/6m, maximal 11.8m
2. Stable Quality with Comeptitive Price
3. NBK(Bright Annealing) Heat Treatment, Surface is clean and smooth, without oxide scale
4. Good Extending and Bending Ability
5.Surface Treatment can be:Black Phosphated,Zn-coated,etc
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