Stainless Cylinder Tubes

Description

Stainless steel Pneumatic Cylinder Tube is produced by seamless or welded material stainless steel tubes through very careful production process.

TP304/304L, TP316/316L,1.4301,1.4304,1.4401,1.4404 are the main grades

The size range outer diameter is 9.53mm-133.00mm and wall thickness is 0.635mm-5mm.

The tube usually produced according to ASTM A269 and with the ID H10 or H11.

The tubes have good outer and inner surfaces, the roughness OD would be Ra 0.8 max and ID would be Ra 0.4 max.

Tube Solutions can meet the mechanical properties like hardness, tensile strength, yield strength, elongation and ovality and so on.

If any questions,you are more than welcome to contact sales@tubesolutions.com.cn 

Common standards explanation

ASTM A312
ASTM A213
ASTM A269
ASTM A789/ASME SA789
ASTM A790/ASME SA790
ASME SB677

ASTM A213 stainless tubing for boiler, heat exhanger

The ASTM A213 covers the seamless ferric carbon steel and austenitic alloy stainless steel tube, applied for boiler, superheater, and heat-exchanger steel tubes.

ASTM A269 – General use stainless tubing

The ASTM A269 covers the stainless steel tubes for common application in seamless and welded.

ASME SB677 – Extremely corrosive resistance

ASME SB677 specification covers the UNS N08904 (904L), UNS N08925, UNS N08926 (alloy 926), in seamless, of cold-drawn, and hot finished steel pipe and steel tube for the extremely corrosive services. The standard includes the material in carbon steel, and ferritic alloy steel, and austenitic stainless steel pipes and tube, 6% molybdenum alloy stainless seamless pipe and tube.

ASTM A789 – Duplex stainless tubing

ASTM A789/ ASME SA789 covers seamless and welded ferritic/austenitic stainless steel tubing for general services. The standard also applied to duplex stainless steel tube material. All tubes in this standard shall be furnished with heat-treated condition according to specified temperature and quench conditions. When the final heat treatment is in a continuous furnace, or when heat treated condition is obitained directly by quenching after hot forming, the number of tubes of same size and from the same heat lot shall be determined from the prescribed sizes of the tubes.

ASTM A790 – Good resistance on stress corrosion cracking

ASTM A790/ ASME SA790 is standard specification for seamless and welded ferritic/austenitic stainless steel pipe. Including duplex stainless steel pipe material. The standard specification mainly covers seamless and longitudinal weld ferritic/austenitic steel pipe, that applied intended for general corrosive services, with particular emphasis on resistance to stress corrosion cracking. This kind of pipe shall be manufactured by seamless or automatic welding process, without adding filler metal in the welding processes. Heat analysis shall be made to determine the percentages of the chemical elements specified. Tensile test, hardening test, flattening test, hydrostatic tests and nondestructive test shall be performed to the specified requirements.

Stainless steel pipe and tube sizes and grades

Octal supply range for the stainless steel pipe and tube:
Standards: ASTM A321, ASTM A213, ASTM A269, ASME SB677
Duplex stainless steel pipe standards: ASTM A789/ ASME SA 789. ASTM A790/ ASME SA 790
Material: AISI 304, 304L, 316, 316L
Outer Diameter: 5.0 – 1300mm,
Wall Thickness: 0.3 – 150mm

Manufacturing types and processes

1. Seamless Hot Rolling Processes
Round Pipe Billet → Heating → Perforation → Three Roll Skew Rolling, Continuous Rolling or Extrusion → Off Pipe → Sizing (Or Reducing Diameter)→ Cooling → Billet → Straightening → Water Pressure Test ( Or Flaw Detection) →Cutting→Marking → Packing→Delivery
2. Seamless Cold Rolling (Cold drawn) Processes
Round Pipe Billet → Heating → Perforation → Head → Annealing → Pickling → Oil (Copper) → Multi Pass Drawing (Cold Rolling) → Billet → Heat Treatment → Straightening → Water Pressure Test → →Cutting→Marking → Packing→Delivery
3. Longitudinal welding (Straight seam welding) processes
Including ERW, EFW.

Corrosion Resistance of Stainless Steel Tube and Pipe

Corrosion resistance performances is the key feature for stainless tube. The commonly used types of steel involve ferritic and martensitic steel, that are predominantly made by adding chromium and manufactured through heat-treatment or to be annealed. There are austenitic stainless steel tubing products that are rich in chromium and nickel and they offer better resistance levels when used under the same conditions as compared to martensitic or ferritic materials.

Common types of stainless steel tubing pipe

As Stainless steel tubing applied in different industries and applications, so what are the common types of the Stainless tubing pipe. Here are below:

• Stainless steel tubing in high pressure use
• Sanitary tubing
• Mechanical use
• Stainless steel tubing for structural and construction
• Boiler stainless steel tube, heat exchanger
• Aircraft tubing
• Oil and gas industries, Petroleum cracking process, Casing and tubing
• For pipelines, liquid transmission

Stainless Pipe for High Pressure

Generally manufactured using solid chromium or a combination of nickel and chromium, including manufactured in seamless and welded stainless pipe. Such as electric fusion welded pipe (ERW) that find application in high-pressure usage; Large diameter stainless steel pipe (in welded and seamless) in case of corrosion of high-temperature applications.

Stainless Sanitary Tubing

Sanitary tubing usually in stainless material and referred standards is ASTM A270. In case the pipe or tube coming in direct contact with sensitive products like food, water, or drink, it is what we called sanitary tube. In these situations, sanitary tubing has good performances of corrosive resistance, no tarnish, and is easy to clean.

Based on the usage, different levels of tolerance (diameters and thickness) shall be applied as in ASTM A270.

Stainless steel tubing for mechanical usage

When the usage is in cylinders, bearings or other hollow formed parts, there is a usage for mechanical purposes. The tubing that is available can be manipulated easily and it results in a wide range of cross-sectional shapes, or even shapes that are round or the ones that need to fit in the cross-section. It finds widespread usage in case of mechanical tubing.