specification

S.S HEAT EXCHANGER / CONDENSER TUBES TO ASTMA 249

INTRODUCTION & SCOPE :

This standard covers the manufacture and supply of welded Austenitic stainless steel, boiler, super heater, heat exchanger and condenser tubes.

S.S.Tubes for Automotive Exhaust Systems

INTRODUCTION & SCOPE :

Vishal stainless steel Tubes are used in all automotive exhaust systems for lightness and strength, improved mechanical properties, improved corrosion resistance at high temperature and appearance, There is no specification for these tubes but in general ,ASTM A-268 may be applicable which covers Seamless or Welded, ferritic or Martensitic SS tubing for general service.

S.S. Schedule Piping to ASTM A-312 (Welded)

INTRODUCTION & SCOPE :

This covers straight seam welded ( without the addition of filler metal) austenitic stainless steel pipe intended for high temperature and general corrosive service.

S.S. Fusion Welded Pipe from Plates as per ASTM A-358

INTRODUCTION & SCOPE :

This covers electric-fusion welded austenitic Chromium-nickel stainless steel pipe suitable for corrosive or high temperature service, or both. Five classes of pipe are covered under this specification.

Class 1.: Double side welded using filler material and 100% rediographed.

Class 2.: Double side welded using filler material. No radiography required.

Class 3.: Single side welded using filler material and 100% radiographed.

Class 4.: As class 3, except root pass may made without filler.

Class 5.: Double welded using filler material and spot radiographed.

Cold Drawn Seamless Stainless Steel Tube ASTMA – 213

INTRODUCTION & SCOPE :

This cover straight cold drawn seamless ferritic, austenitic alloy steel, boiler, superheater and heat exchanger tubes.

S.S Dairy / Sanitary Application Tubes per ASTM A-270

INTRODUCTION & SCOPE :

Welded austenitic stainless steel sanitary tube for use in dairy and food processing industries. These tubes are used exclusively for handling food, beverages and pharma products where high standards of hygiene and easy cleaning are necessary.