Stainless Steel Pipes

Types of Packaging:
- Bundles (hexagonal)
- Wooden Boxes
- Crates (steel/wooden)
- Special crates for U-Bend tubes with each radius separated

Type: As Welded, EFW, ERW
Grades: 304, 304L, 304H, 321H, 321, 316, 316L, 316Ti, 310S, 347, 347H, UNS31803 Duplex
Size: 1/8" NB to 36"NB

STANDARD(GRADE):ASTM A554(MT304/304L, MT316/316L)JIS G3446(SUS304, SUS316)CNS 5802(304, 316)
O.D.:9.5mm~203.2mm
W.T.:0.6~5.0mm

High quality EFW Electric Fusion Welded Pipe is all made and controlled to the relevent standards such as: ASME, ASTM, BS and DIN/WERKSTOFFE.

UNS 32750 material is a super duplex stainless steel with 25% chromium, 4% molybdenum, and 7% nickel. The high molybdenum.

Products:Longitudinal with Circumferential Seam Welded Pipes
Size:20"NB to 72"NB
Thickness:5.54 MM to 20.00 MM
Specification:ASTM A-358,A-409,A-778

Micro structure Analysis
Grain size examination
Polishing Machine
Electro Etching Machine
Inverted Metallurgical Microscope

SUPER DUPLEX STAINLESS STEEL SEAMLESS PIPES COLD ROLLED,SOLUTION ANNEALED PICKLED AND PASSIVATED,
CONFORMS TO ASTM A 790, UNS S 32760, SOUR SERVICES,

High resistance to abrasion, erosion and cavitation erosion Excellent resistance to stress corrosion cracking.
Applicable for sour service operation.

Excellent resistance to stress corrosion cracking in chloride containing environments.
ASME Approval for Pressure Vessel application.

Outstanding resistance to pitting and crevice corrosion in seawater and other chloride containing environments, Pitting Temperature exceeding 50°C.

Benefits of UNS32750 Pipe:
Improved corrosion resistance in comparison to Duplex
Greater tensile and yield strength
Good ductility and toughness

Super Duplex Alloy UNS S32760 (F55 / 1.4501) has excellent corrosion resistance to a wide variety of media, with outstanding resistance to pitting

Quality Control:
ISO 9001 - 2008 issued by Lloyd's
PED 97/23/EC
ASME Boiler and Pressure Vessel Code Certificated Certificate Issued by TUV

Mechanical Test Requirements:
Tensile - 90,000 psi min
Yield - 65,000 psi min
Elongation - 25 % min
Hardness - 293 HBN Max

utside Diameter: 6.00 mm OD up to 250 mm OD, Sizes up to 12" NB available Ex-stock, OD Size Steel Tubes available Ex-stock

End Protection: Plastic Caps | Outside Finish: 2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements

Specifications: ASTM A789
Grade: UNS S31803 & UNS S32507
Dimensions : OD(6.0-630)*WT(0.5-45)mm
Schedule: SCH20, SCH30, SCH40, STD, SCH80

Material: 1.4410 / S32750 / 2507 / 1.4462 / S31803 / 2205 / Etc
Type:Welded
Ends:PE / BE
NDT:Eddy Current Or Hydraulic Test
Standard:ASTM A790

Advantages
a) Superior surface finish
b) Better mechanical property
c) More precise dimension
d) Perfect inspection method and inspection equipmet