S32550 Stainless Steel Pipe

1. OD: 1mm - 50mm
2. Thickness: 0.5mm up to 40mm
3. Length: Single, Double Random, Cut Length
4. End: Plain End, Beveled End, Treaded

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Product Introduction

S32550 stainless steel pipe is a super duplex steel with similar composition to the more widely used super duplex grade UNS S32760. 1.4507 stainless steel has slightly higher copper content and lower nickel content. It has superior strength and corrosion resistance compared to standard duplex stainless steel. Super Duplex 255 pipe also has good wear resistance, stress corrosion cracking resistance and excellent welding performance. We are a UNS S32550 supplier with 15+ export experience, contact us for more information and free quote!

ASTM A790 UNS S32550 SS Pipe Standard:

ASTM A790: Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe

ASTM A789: Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service

Available forms for S32550: Fittings, Flanges, Forgings, Fasteners, Pipes, Tubes, Plates, Sheets, Strips, Coils, Bars, Round Rods, Etc.

UNS S32550 Super Duplex Stainless Steel Pipe Suppliers

UNS S32550 Super Duplex Pipe Specification

Grades	Duplex Steel – UNS NO. S 32550
Standards	ASTM, ASME, and API
Specifications	ASTM A 789, 790/ ASME SA 789, 790
Size	1/2"NB TO 12 "NB IN
Seamless Sizes	1/2" NB - 8" NB
Welded Sizes	6" NB - 24" NB
Outer Diameter	6.0-630mm
Thickness	1-50mm
Length	Single Random, Double Random & Required Length
Schedule	SCH20, SCH30, SCH40, STD, SCH80, SCH160
Form	Round, Square, Rectangular, Hydraulic Etc.
Type	Seamless / ERW / Welded / Fabricated / CDW
End	Plain End, Beveled End, Treaded

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Super Duplex UNS S32550 Mechanical Properties

Grade	Tensile Strength(MPa) min	Yield Strength 0.2% Proof (MPa) min	Hardness Rockwell C(HR C)	Elongation(% in 50mm)
S32550	760	550	32 Max	15

SS 1.4507 Stainless Steel Chemical Composition

Iron (Fe): balance
Chromium (Cr): 24.0-26.0%
Nickel (Ni): 4.5-6.5%
Manganese (Mn): 1.50% max
Molybdenum (Mo): 2.9-3.9%
Silicon (Si): 1.00% max
Sulfur (S): 0.020% max
Phosphorus (P): 0.035% max
Carbon (C): 0.030% max
Nitrogen (N): 0.10-0.30%
Vanadium (V): 0.20-0.35%
Niobium (Nb) + Tantalum (Ta): 0.10-0.30%
Copper (Cu): 0.50% max

S32550 (1.4507) Duplex Stainless Steel Application Fields

Shipbuilding: bolts and fasteners, valves
Petroleum and chemical industries
Papermaking industry
Environmental protection industry: such as flue gas desulfurization equipment

S32550 Stainless Steel Pipe Fabrication and Quality Control

Manufacturing process of UNS S32550 super duplex stainless steel pipe includes melting, casting, hot rolling, cold rolling and forming pipes through seamless or welding processes.
Tests usually include hydrostatic tests, compressive and tensile strength and compression tests.