Welded Austenitic Stainless Steel Tube Astm A688 For Tubular Feed Water Heaters

ASTM A688 TP304/304L/304LN , TP316/316L/316LN Welded Austenitic Stainless Steel Feed warter Heater Tubes

Size range:
O.D.: 4.0-230mm W.T.:1-30mm L: according to customer requirement

Material and Manufacture:

Tubes are made from Flat-rolled steel by automatic welding process.

Subsequent to welding and prior to final heat treatment, the tubes are cold drawn or cold rolled

The tubes are ready for U-bending after annealed, according to customer's drawing and design.

Surface Condition:

The tubes are pickled in nitric and hydrofluoric acids.

Bright annealing.

Mechanical Requirement

Tensil Requirements

Permissible Variations in Dimensions

Reference Documents:

ASTM STANDARDS

ASTM A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels

ASTM A480 / A480 M Specification for General Requirements for Flat-Rolled Stainless and Heat-

Resisting Steel Plate, Sheet and Strip,

ASTM A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys.

ASTM A1016/ A1016 M Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy

Steels, and Stainless Steel Tubes.

ASTM E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)

SAE J1086 Practice for Numbering Metals and Alloys (UNS)

FAQ

Q: Are you trading company or manufacturer ?

A: A professional steel pipes materials inventor, manufacturer and solution provider

Q: How long is your delivery time?

A: Generally it is 7-14 days if the goods are in stock. or it is 30-60 days if the goods are not in stock, and it is according to quantity.

Q: Do you provide samples ? is it free or extra ?

A: Yes, we could offer the sample for free charge but you need to pay the cost of freight.

Q: What is your terms of payment ?

A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance , balance before shippment.
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