Heat Exchanger Austenitic steel tube

Heat Exchanger Austenitic steel tube 

Standard specification for welded austenitic steel boiler , superheater ,heat exchanger and comndenser tubes

Referenced standard:

A262 Practics for detecting susceptibility to intergranular attack in austenitic stainless steels.

E112 Test methds for detacting average grain size

E213 Practice for ultrasonic testing of metal pipe and tubing

A480 Specification for general requirements for flat-rolled stainless and heat resisting steel plate,sheet, and strip.

A1016 Specification for general requirements for ferritic aloy steel ,austenitic alloy steel, and stainless steel tubes.

E527 Practice for numbering metals and alloys in the unified numbering system.

Product Name: Austenitic Welded Stainless Boiler Tube

Standard: ASTM A249

Material: TP304,316, etc

Type: Stainless

Production: Welded 

Size range for tube:OD 1/4" to 80" (6mm to 2000mm),THk 0.02" to 2" (0.5mm to 50mm)

Length: Max12m

Packing and Shipping 

Shipment: By sea with FCL/LCL contianer or in bulk ;by airfreight, by railway

Inspection and Tests

1.100% PMI,Spectro Chemical Aanlysis Test for Raw Material

2.100% Dimension & Visual Examination

3. Mechanical Properties Test Include Tension Test,Flaring Test (For Seamless tube/pipe)/ Flange Test (For Welded Pipe & Tube), Hardness Test ,Reversed Flattening Test, Transverse-guided face bend test

4.100% Hydrostatic Test or 100% NON-DESTRUCTIVE Test (ET or UT)

5.Radiographic Test for Welded Pipe (shall be accordance with specification,or shall be as agreed upon between the purchaser and vendor)

6.Straightness Test (optional)

7.Roughness Test (optional)

8.Intergranular Corrosion Test(optional)

9.Impact Test (optional)

10.Grain Size Determinations (optional)

NOTES : ALL THE TESTS AND INSPECTION RESULT NEED TO BE SHOWED IN REPORTS ACCORDING TO STANDARD AND SPECIFICATION.