Super Duplex Steel S32950 Pipe Fittings Supplier, Exporter & Manufacturer in Mumbai, India

Super Duplex Steel S32950 Pipe Fittings are produced from a duplex stainless steel alloy containing chromium, nickel, molybdenum, nitrogen, and controlled amounts of other alloying elements. Each element contributes to the material’s overall characteristics, helping provide a combination of mechanical strength, toughness, corrosion resistance, and durability for demanding industrial applications. Chromium supports the formation of a protective passive film that helps resist corrosion and oxidation, while nickel contributes to the stability and toughness of the duplex structure. Molybdenum improves resistance to pitting and crevice corrosion in suitable chloride-containing environments, and nitrogen contributes to strength and resistance to localized corrosion. The combination of austenitic and ferritic phases gives Super Duplex Steel S32950 its characteristic balance of strength and corrosion-resistant performance. Depending on project specifications, these pipe fittings can be supplied in different fitting configurations, nominal sizes, pressure requirements, wall thicknesses, end connections, surface finishes, dimensional tolerances, and manufacturing specifications. Common configurations may include elbows, tees, reducers, and caps, subject to the required design and product availability. Their combination of high mechanical strength, corrosion resistance, structural reliability, dimensional accuracy, and durability makes them suitable for applications involving chemical processing, oil and gas, petrochemical facilities, offshore installations, marine engineering, industrial process piping, water treatment, pressure equipment, power generation, and specialized fabrication. The appropriate fitting type and material specification should be selected according to operating temperature, pressure, fluid composition, corrosion exposure, and applicable industry standards to help ensure dependable performance in the intended service environment.

Specification	Details
International Standards	ASTM A815 / ASME SA815 for wrought duplex stainless steel pipe fittings; verify applicable grade requirements
UNS No.	S32950
DIN / WNR	1.4477
Seamless Pipe Size	OD: 4 mm to 219 mm; WT: 0.5 mm to 20 mm; ½” NB to 8″ NB
Welded / EFW Pipe Size	OD: 5 mm to 1,219.2 mm; ½” NB to 48″ NB
Wall Thickness Schedules	SCH 5, SCH 10, SCH 20, SCH 30, SCH 40 (STD), SCH 60, SCH 80 (XS), SCH 120, SCH 140, SCH 160, XXS
Pipe Types	Seamless / ERW / Welded / EFW (Electric Fusion Welded) / LSAW / Fabricated
Form	Round, Square, Rectangular
Length	Single Random (5.8 m), Double Random (11.8 m), Cut-to-Length
End Finish	Plain End (PE), Beveled End (BE), Threaded End
Surface Condition	Hot Finished (HF), Annealed & Pickled (AP), Bright Annealed (BA), Cold Drawn (CD), Polished

Specification

Details

International Standards

ASTM A815 / ASME SA815 for wrought duplex stainless steel pipe fittings; verify applicable grade requirements

UNS No.

S32950

DIN / WNR

1.4477

Seamless Pipe Size

OD: 4 mm to 219 mm; WT: 0.5 mm to 20 mm; ½” NB to 8″ NB

Welded / EFW Pipe Size

OD: 5 mm to 1,219.2 mm; ½” NB to 48″ NB

Wall Thickness Schedules

SCH 5, SCH 10, SCH 20, SCH 30, SCH 40 (STD), SCH 60, SCH 80 (XS), SCH 120, SCH 140, SCH 160, XXS

Pipe Types

Seamless / ERW / Welded / EFW (Electric Fusion Welded) / LSAW / Fabricated

Form

Round, Square, Rectangular

Length

Single Random (5.8 m), Double Random (11.8 m), Cut-to-Length

End Finish

Plain End (PE), Beveled End (BE), Threaded End

Surface Condition

Hot Finished (HF), Annealed & Pickled (AP), Bright Annealed (BA), Cold Drawn (CD), Polished

Element	Min %	Max %
Carbon (C)	—	0.03
Silicon (Si)	—	1.00
Manganese (Mn)	—	1.50
Phosphorus (P)	—	0.035
Sulfur (S)	—	0.015
Chromium (Cr)	26.00	29.00
Molybdenum (Mo)	1.00	2.00
Nickel (Ni)	3.50	5.20
Nitrogen (N)	0.15	0.35
Copper (Cu)	—	1.00
Iron (Fe)	Balance	—

Element

Min %

Max %

Carbon (C)

—

0.03

Silicon (Si)

—

1.00

Manganese (Mn)

—

1.50

Phosphorus (P)

—

0.035

Sulfur (S)

—

0.015

Chromium (Cr)

26.00

29.00

Molybdenum (Mo)

1.00

2.00

Nickel (Ni)

3.50

5.20

Nitrogen (N)

0.15

0.35

Copper (Cu)

—

1.00

Iron (Fe)

Balance

—

Property	Value	Unit
Tensile Strength (Rm)	690 minimum	MPa
Yield Strength (Rp 0.2%)	485 minimum	MPa
Elongation (A50mm)	15 minimum	%
Hardness — Rockwell B	Verify applicable standard	HRB
Hardness — Brinell	Verify applicable standard	HBW

Property

Value

Unit

Tensile Strength (Rm)

690 minimum

MPa

Yield Strength (Rp 0.2%)

485 minimum

MPa

Elongation (A50mm)

15 minimum

Hardness — Rockwell B

Verify applicable standard

HRB

Hardness — Brinell

Verify applicable standard

HBW

Property	Value	Unit
Density	7.99	g/cm³
Specific Heat (0–100°C)	500	J·kg⁻¹·K⁻¹
Thermal Conductivity	14.6	W·m⁻¹·K⁻¹
Thermal Expansion (0–100°C)	16.5 × 10⁻⁶	mm/m·°C
Modulus of Elasticity	193	GPa
Electrical Resistivity	7.4	μΩ·cm
Melting Range	1,345–1,440	°C

Property

Value

Unit

Density

7.99

g/cm³

Specific Heat (0–100°C)

500

J·kg⁻¹·K⁻¹

Thermal Conductivity

14.6

W·m⁻¹·K⁻¹

Thermal Expansion (0–100°C)

16.5 × 10⁻⁶

mm/m·°C

Modulus of Elasticity

193

GPa

Electrical Resistivity

7.4

μΩ·cm

Melting Range

1,345–1,440

°C

Super Duplex Steel S32950 Pipe Fittings are used in industrial piping systems where high mechanical strength, corrosion resistance, structural reliability, and long-term service performance are important considerations. Their duplex stainless steel structure combines austenitic and ferritic phases, providing a useful balance of strength and resistance to various forms of corrosion when the material is properly selected and processed. The alloy’s chromium, nickel, molybdenum, and nitrogen content contributes to its overall mechanical and corrosion-resistant properties, making it a potential choice for suitable demanding service environments. These fittings can be used in chemical processing plants, oil and gas facilities, petrochemical installations, offshore engineering, marine applications, water treatment systems, industrial process piping, pressure equipment, power generation, and specialized fabrication projects. Depending on the piping design and project specifications, available fitting configurations may include elbows, tees, reducers, caps, and other specified connections, with different nominal sizes, wall thicknesses, end preparations, and surface finishes. Their combination of high strength and resistance to localized corrosion can make them suitable for connecting piping systems exposed to pressure, corrosive process fluids, and chloride-containing environments, provided the grade is appropriate for the specific service conditions. Proper material selection is essential because actual performance depends on operating temperature, pressure, fluid chemistry, fabrication practices, and applicable design requirements. With their combination of mechanical strength, corrosion resistance, dimensional accuracy, structural integrity, and durability, Super Duplex Steel S32950 Pipe Fittings can provide a dependable solution for industrial projects that require reliable piping connections and consistent performance throughout their intended service life.