WELDED TUBE GRADES

304/304L  316/316L to ASTM A269

S31803/S32205 to ASTM A790

WELDED TUBE CHEMICAL

Normal Chemical Composition

to ASTM A269  ASTM A790

WELDED TUBE SIZES

ANSI/ASME B36.19

ANSI/ASME B36.10

Walmi Stainless Steel welded tube compliance to standards below:

ASTM A312

ASTM A269

ASTM A358

ASTM A790

ASTM A789

MTC: EN10204:2004  3.1

DELIVERY CONDITION

Made of stainless steel sheet/plate/coil

Solution Treat or Hard condition

PRODUCTION PROCESS

Welding to A269 – without Filler Metal.
Welding to A358 – with filler metal.

TOLERANCE

Outside Diameter, Wall Thickness, Length  of

stainless welded tube according to ASTM A269

MECHANICAL PROPERTIES

Intergranular corrosion test according

to ASTM A262 Pratic E

NON-DESTRUCTIVE TESTING

100% Eddy Current tested or hydrostatic tested

or X-Ray tested or Ultrasonic tested.

Other information is available upon request

All of Walmi stainless steel Weled tubes are of the highest standard and will exceed all standard requirements without a shadow of a doubt.

Walmi Stainless Steel Hollow Bar are used extensively in the industries of Chemical, Petrochemical, Power, Automotive, Marine, Subsea, Offshore, Manufacturing, Pulp and Paper Processing, Food and Beverage processing, Dairy, Dying Industry, Architectural, Textile, Transport Industry, Hardware and Kitchenware Industry and many more.

The stainless hollow bar applications in the specific products can be found in the following:

Valves and actuators
Flow meters / Valves / Strainers / Baskets /

Samplers Pumps and compressors
Vacuum equipment / Hydraulic cylinders / Pump bodies Compression bodies

Axles and shafts
Rollers / Guides / Bushes / Shafts / Collars / Hubs / Bearings

Mechanical seals
Seals / Spacers / Rings

Connection assembly
Fittings / Flanges / Couplings / Connectors

Instrumentation
Sensors / Solenoids / Resistors

Agitation
Stirres / Agitators / Mixers / Blenders / Bottle filling machinery Refridgerators / Butchering / Mincers

Others
Wind mills / Watches

Stainless Steel Hollow Bar is primarily used for the manufacture of radially machined components, a great variety of hollow products and cylindrical components, which will be used in conditions where where corrosion is an issue .The use of Hollow Bar is an economic and efficient means of supplying high quality raw material and a sensible alternative to the use of solid bar as it reduces machining requirements and minimizes material wastage.

Advantages

Specifications:

• Excellent availability, Reduced customer inventories.
• No minimum order, 1 piece stainless steel hollow bar order is accepted by Walmi Stainless Steel.
• Improved cutting speeds and feed rates, better machine utilization and reduced fixed cost per produced stainless steel component.
• Reduced tool wear, lower lubricant usage and machinery maintenance costs, better machine utilization through reduced stoppage time.
• Less machine setting-up time and and machine cycle times, lower labor and overhead costs for each stainless component.
• Faster machining, shorter production time due to excellent and consistent machining properties of stainless steel.
• Easier handling due to lower weight per un-machined component of the hollow bar.
• Very competitive from short to long series production of hollow bar compared to forging.
• shorter production time for hollow bar compared to bore out solid stainless steel bar.
• tangled chips can be avoided Due to limited internal machining