Why is the use of the stainless steel increasing?

The stainless steel can be readily bent, formed, punched, and drilled. New and improved methods to fasten stainless steel tubes for pipes to themselves or to other materials are making its use simpler and fabrication faster. It is easier, faster and cheaper to paint or coat (22.3% less surface area) as well as to weld in both the shop and field (due to restricted chemistries) no preheating or post-heating is required. It is facile to fit mating parts together (no notching or copying of joints as with beams or channels) and to reduce weight to amass savings in erection and shipping costs.

Stainless Steel tube (tubing) can be used for a wide variety of mechanical applications. It may be used either statically or dynamically. I’s close tolerances, good finish, and dense structure make it ideal for parts such as structural support and parts, frames, racks, trailer beds and trailer components, structural components and supports for buildings, bridges, and highways, conveyors, machine parts, guides, and supports, safety and deck rails, sign posts, athletic equipment, ornamental usages and a wide range of applications in industrial, construction, automotive, appliance, furniture and agricultural industries. info@primesteeltube.com

What are the advantages of the stainless steel tube?

What are the advantages of the stainless steel tube?

Compared with the plastic tube, the stainless steel tube has more excellent mechanical intension; resistant properties against pressure and heat, etc. as the substrate is steel tube, the product will not be brittle and aging. It is the upgrading replacement for galvanized tube used in the conveying tap water, coal gas, chemical products and other fluid, as well as heating engineering. Apart from the same shape and installation with the conventional galvanized tube, the product also plays an important role in delivering tap water through heavy caliber in place of aluminum and plastic composite tube. It is widely accepted by customers and becomes one of the most competitive new products in pipe market.

Architectural/Design Advantages
• High quality surface finish
• Appearance in exposed applications can become an exciting and visual part of the design of buildings and other structures
• Cost effective in relation to other building materials
• Ability to conceal essential services Engineering Advantages
• Greater design properties in both axis (moment of inertia, section modulus and radius of gyration)
• High resistance to torsional loading
• Particularly suited for compression column applications
• Less weight-per-foot
• Diversity: strength, formability, toughness and corrosion resistance
• Less resistance to air and water flow info@primesteeltube.com

The comparison between frame scaffolding and tubular scaffolding.

Frame scaffolding
- It is so easy to erect and dismantle the frame scaffolding and the erection speed is about 2-3 times that of the tubular scaffolding kind and the working strength is rather lower.
- The maximum working load of each frame is +25KN, which is 2.5 times higher than that of the tubular scaffoldings. The frame scaffolding is reasonable and with higher safety ratio. The scaffolding with fully planked board can fully secure the safety of the workers.

Tubular scaffolding
- It is hard to erect and remove the tubular scaffolding as the tubes are heavy weighted. It has more than much couplers so the construction efficiency is rather low while the workers strength is rather tight.
- In the traditional tubular scaffolding system, the maximum exceeding working load shall be within 10KN with a rather lower safety ratio. The assembly height of the scaffolding shall be no more than 30 meters and the for the height over 30 meters, the frames shall be made up with two tubes. info@primesteeltube.com

Steel Pipe Package Requirement

1. Bundled Package Requirements

- Plastic caps plugged at the two sides of pipe ends
- Should be avoided by the steel strapping and transport damage
- Bundled signs should be uniform and consistent
- The same bundle(batch) of steel pipe should be came from the same furnace. The steel pipe has the same furnace number, the same steel grade, the same specifications. It is
unacceptable to mixed the steel pipes from different furnace into the same bundle. Also, each bundle should be labeled as an inadequate small bundle.
- The weight for each bundle should not exceed 50 kg. Consent of the clients can increase the bundle weight to 80 kg.
- When bundling the plain end steel pipe, the pipe end should be aligned. The aligned pipe ends deviation should be less than 20mm.
- The length deviation for each bundled steel pipe should be less than 10mm. However, according to the length of the steel pipe, the length of each bundled steel pipe is less than 5mm.
In each bundled steel pipe, the longest and the second longest steel pipe deviation should be less than 10mm.
- When the pipe length is greater than or equal 6 meters, each bundle of steel pipe should have at least 8 steel strips bundling. Steel strips will be divided into three groups, three steel strip
bundling at the pipe ends, and two steel strips bundling at the center pipe body.
- When the pipe length is less than 6 meters, each bundle of steel pipe should have at least 5 steel strips bundling. Steel strips will be divided into three groups, two steel strips bundling at
the pipe ends, and one steel strips bundling at the center pipe body.
- When the pipe length is greater than 3 meters, each bundle of steel pipe should have at least 3 steel strips bundling. Steel strips will be divided into three groups, one steel strips bundling
at the pipe ends, and one steel strips bundling at the center pipe body.
- When there are special requirements for single pipe, 4 plastic snap ring or nylon ropes can be added on a single branch pipe. The snap rings or ropes should be tied securely during transport
the loose and fall off is not acceptable. info@primesteeltube.com

2. Container Package Requirement

- For cold rolled or cold drawn seamless steel tube and the surface finish of hot rolled stainless steel tube, it can be packed into a container(such as plastic containers and wooden containers).
- The weight of the container after the packaging shall comply with the requirements in the table below. However, the maximum weight of each container can be increased after negotiated by both side. (the buyer and the seller)
- When loaded the pipe into the container, the container wall should be mat cardboard, cloth or other moisture-proof material. Containers should be tightly inappropriate seepage.
- Product Sign should be included into the container. End surface of the outer container, a product sign is also necessary.
- Steel pipe special packaging requirements can be negotiated between the buyer and seller.

Heat Treatment Process of LSAW Steel Pipe

First, reasonable selection. Straight pipe joints should choose a good micro deformable material straight seam steel pipe steel, for carbide segregation serious straight seam steel casting steel should be reasonable and transfer of heat treatment, larger and unable to cast a straight seam steel pipe steel may be solution bis refined heat treatment. Reasonable choice of heating temperature control heating rate, on a straight seam steel pipe can be heated slowly, preheat and other ways to reduce heating balanced straight seam steel pipe heat deformation.

Second, the correct heat treatment process operation and reasonable heat treatment process is also a useful way to reduce the distortion of straight pipe joints. Straight seam steel pipe deformation reason is often messy, but we only need to master the rules of the deformation analysis of the onset of the reason, the choice of avoiding abnormal deformation method of straight pipe joints can be reduced, and also can be controlled.

Third, straight seam steel pipe to be pre-heat treatment to eliminate the machining process of the remaining episodes of stress. For straight seam steel pipe, in the case of the conditions allow, try to use cryogenic vacuum heat treatment and quenching after quenching. In ensuring straight seam steel hardness of the premise, try to use pre-cooling, grading cooling quenching or austempering process.

Fourth, straight seam steel pipe planning portrayed to be reasonable, not too poor thickness, shape to symmetrical, straight pipe joints on large deformation deformed to master the rules, to reserve allowance, on a large, straight seam steel pipe can be used in combination plan. For some precision messy straight seam steel pipe can be used pre-heat treatment, aging heat treatment, quenching and nitriding heat treatment to control the accuracy of straight pipe joints. When the patch straight seam steel trachoma, porosity, wear and other defects, the choice of cold welding and other small heat-affected patch repair equipment, to prevent the onset of deformation process. info@primesteeltube.com

Features of Precision Tubes

Precision steel tubes is a kind of seamless steel pipe. Precision tubes features:

1. The cold-rolled precision steel tolerances and high precision, product precision control 卤 5mm, outer wall finish, the surface oxide layer.
2. The cold-rolled precision steel comprehensive performance excellent, able to withstand high pressure, cold bending, flaring, flattening no crack, no wrinkled skin, can do a variety of complex deformation and mechanical processing.
3. The promotion and application of precision seamless steel can save and improve processing effectiveness, reduce the manufacturing processes and equipment investment, can save costs and greatly reduce machining time, improve production and material utilization, and help to improve product quality, reduce cost.

Precision tubes uses: precision cold-rolled steel is widely used in automobiles, motorcycles, electric cars, petrochemical, power, shipbuilding, aerospace, areas of bearings, pneumatic components, the low-pressure boilers. info@primesteeltube.com

Pre-welding process for LSAW Steel Pipe

LSAW steel pipes (UOE, JCOE) manufacturing processes, welding processes are set to continuous advance. Its role is to be finalized after the tube forming, shaping and positioning within the weld seam on the back cover, in order to ensure the pipe dimensions and is conducive to tube welded pipe to improve quality and production efficiency.

Pre-welding process
After forming the tube by the next roller conveyor transported to a pre-welder's torch, rising rotating roll, rotate to adjust an open position to weld at the top of both sides of the pressure on the pressure roller and the pressure roller so that the tube seam, drop gun and adjust the tracking of the weld seam, open the protective gas and cooling water, start welding, welding condition monitoring, welded to the tube end welding arc stops (automatic delay stop gas), lift the gun and the top pressure rollers, pipe welder pre sent , pipe ends and welding defects.

Pre-welding process characteristics
Pre-welding using Ar + CO2 mixed gas shielded arc welding, continuous welding seam on the back of the tube to move at a faster speed. Since the bevel angle, tube shape, the tube along the longitudinal direction of the opening and both sides of the plate edge distortion factors of inequality, forming the seam after seam quality is not stable, larger changes. Need to change the tube seam welding, the arc of a steady state, the weld position deviated from the case and other real-time tracking and adjusted accordingly. Thus presoldered have welding speed, impact seam quality factors, changes and adjustments randomness and other characteristics. info@primesteeltube.com