Product Description
Product introduction
1), Heat Exchanger Tubing (Straight and U tubing)
2), Air Cooler Tubing
3), Condenser Tubing
4), Evaporator Tubing

Specification:
ASTM A213 (ASME SA213): Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
ASTM A789 (ASME SA789): Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
ASTM A268(ASME SA268): Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service
Final Finishing: Solution Annealed & Pickled, Bright Annealed
The specifications of JIS G3463, EN 10216-5 are available.



 Duplex & Super Duplex
Stainless Steel Tube & Pipe
Grade Available: UNS S31803, UNS S32205, UNS S31500, UNS S32304, UNS S32750 S32760
Specification: 
ASTM A789 (ASME SA789): Specification for Seamless and Welded Ferritic / Austenitic Stainless Steel Tubing for General Service
ASTM A790 (ASME SA790): Specification for Seamless and Welded Ferritic / Austenitic Stainless Steel Pipe
The specification of EN 10216-5 is available.

Pipes for Producing Pipe Fittings
Specification:
ASTM A312 (ASME SA312): Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
ASTM A790 (ASME SA790): Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe
ASTM B423(ASME SB423): Specification for Nickel-Iron-Chromium-Molybdenum-Copper Alloy(UNS N08825 and N08221) Seamless Pipe and Tube
ASTM B407(ASME SB407): Specification for Nickel-Iron-Chromium Alloy Seamless Pipe and Tube
The specifications of JIS G3459 and EN 10216-5 are available.
Seamless Pipe
Specification:
ASTM A312 (ASME SA312): Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
ASTM A790 (ASME SA790): Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipes
ASTM B423(ASME SB423): Specification for Nickel-Iron-Chromium-Molybdenum-Copper Alloy(UNS N08825 and N08221) Seamless Pipe and Tube
ASTM B407(ASME SB407): Specification for Nickel-Iron-Chromium Alloy Seamless Pipe and Tube
The specifications of JIS G3459 EN 10216-5, DIN 17456, DIN 17458 are availabie.
 


Boiler Tube and Pipe
Grade: 304H, 310H, 321H, 347H, 347HFG
Specification: 
ASME SA213: Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
The specifications of ASME SA312, JIS G3459, EN 10216-5, DIN 17456, DIN 17458 are available.

ASTM A312 (ASME SA312): Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
ASTM A790 (ASME SA790): Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipes
ASTM B423(ASME SB423): Specification for Nickel-Iron-Chromium-Molybdenum-Copper Alloy(UNS N08825 and N08221) Seamless Pipe and Tube
ASTM B407(ASME SB407): Specification for Nickel-Iron-Chromium Alloy Seamless Pipe and Tube
The specifications of JIS G3459 EN 10216-5, DIN 17456, DIN 17458 are availabie.
 Inspection And Test
Raw Material Inspection:
1. Check the material supplier's mill test certificates
2. Check the material's quantity, size, surface condition
3. Conduct chemical analysis and mechanical property test




Process Inspection:
1. Inspect single work-piece's dimension, levelness, bend
degree, hole size, hole location, etc.
2. Inspect the work-piece's welding result 

Cleaning Result Inspection:
After the work piece pass the process inspection, then go to cleaning to wipe out its oil&grease, dust, and other contaminants. Inspection method:
1. Visual inspection 
2. Wipe test 
3. Black light test
4. Mirror test (if need)

Assembly Inspection:
After cleaning inspection is good, then assemble on set to inspect its overall levelness, dimension, etc.Water Test:
Water test is a good way to check the distributor's working performance. The test items includes:
1. Liquid height in trough
2. Used time of one hole to fill the container
3. Calculate the coefficient variance(CV)

Package Inspection:
1. Check the small parts quantity according to packing list
2. Check the protect method of the internals