Super Duplex Steel S32750 Round Bars

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Super Duplex Steel S32750 Round Bars Specification

Tensile Strength
790 MPa Min

Diameter
6 mm to 350 mm

Product Form
Solid Bar

Heat Resistance
Good up to 600C

Material Composition %
Cr 24-26%, Ni 6-8%, Mo 3-5%, N 0.24-0.32%, Fe balance

Hardness
293 HB max

Coating Type
Uncoated/Optional

Recyclable
Yes

Corrosion Resistant
Excellent

Size
Custom sizes available

Product Name
Super Duplex Steel S32750 Round Bar

Steel Type
Super Duplex Stainless Steel

Steel Product Type
Round Bar

Grade
S32750

Thickness
1 mm to 350 mm

Shape
Round

Steel Standard
ASTM A276, ASTM A479

Surface
Bright, Peeled, Polished, Black

Composition
UNS S32750 (25Cr-7Ni-4Mo-N)

Application
Oil & Gas, Chemical Processing, Marine, Petrochemical Industries

Dimension (L*W*H)
Custom/As Per Requirement

Weight
Varies as per dimensions

Color
Silver/Metallic Grey

Material Grade
S32750

Finish Type
Polished/Bright/Black

Usage
Shafts, Fasteners, Marine Hardware, Chemical Processing

About Super Duplex Steel S32750 Round Bars

What Are Specification Super Duplex Steel S32750 Round Bars?

Specifications Chart	ASTM A276, ASME SA276
Dimensions	EN, DIN, JIS, ASTM, BS, ASME, AISI
Size in mm	5 mm To 500 mm
Diameter in mm	0.1 mm to 100 mm
Length in mm	100 mm To 3000 mm Long & Above
Surface Finish	Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish
Tolerance	H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients requirements
Form	Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc.

Equivalent material Of Super Duplex Steel S32750 Round Bars?

STANDARD	WERKSTOFF NR.	UNS
Super Duplex Steel S32750	1.4410	S32750
Super Duplex Steel S32760	1.4501	S32760

Chemical Composition Of Super Duplex Steel S32750 Round Bars?

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	N	Fe
S32750 / S32760	0.030 max	1.20 max	0.80 max	0.035 max	0.020 max	24.00 26.00	3.00 5.00	6.00 8.00	0.24 0.32	58.095 min

Mechanical Properties Of Super Duplex Steel S32750 Round Bars?

Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
7.8 g/cm3	1350 C (2460 F)	Psi 80000 , MPa 550	Psi 116000 , MPa 800	15 %

Superior Strength and Corrosion Resistance

S32750 round bars are engineered to deliver high yield and tensile strengths, alongside unmatched resistance to pitting and crevice corrosion. Their duplex microstructure imparts ferritic and austenitic qualities, ensuring resilience in aggressive chemical or marine settings. This robust combination makes them a practical solution for critical components exposed to challenging environments.

Customizable Solutions for Industrial Needs

Available in diameters from 6 mm to 350 mm and lengths up to 6 meters, Super Duplex S32750 bars are tailored to specific industry requirements. Whether you need precise cuts or specialized finishes like polished, bright, or black, the product can be customized in size, thickness, and surface to suit your operational needs.

FAQs of Super Duplex Steel S32750 Round Bars:

Q: How can Super Duplex Steel S32750 round bars benefit industries like oil & gas and marine applications?

A: S32750 round bars offer outstanding strength, excellent resistance to chloride-induced corrosion, and good impact toughness, making them highly suitable for environments with high mechanical and corrosive demands commonly found in oil & gas, chemical, and marine sectors.

Q: What is the typical process for manufacturing S32750 round bars?

A: These round bars are produced following strict ASTM A276/A479 standards, involving melting, hot forming, heat treating, and surface finishing (such as polishing or peeling). Additional custom and dimensional processing ensures compliance with specific industry requirements.

Q: When should I consider using Super Duplex S32750 round bars over standard stainless steel?

A: You should opt for S32750 round bars when you require a combination of high mechanical strength, greater corrosion resistance (especially against chlorides), and durability under high temperatures up to 600Csituations where conventional stainless steels may fail.

Q: Where are S32750 round bars commonly utilized?

A: They are widely used in critical structural and functional components of oil & gas rigs, marine platforms, chemical processing units, and petrochemical plants. Common applications include shafts, fasteners, marine hardware, and high-stress construction elements.

Q: How is the machinability and weldability of these round bars?

A: Machinability of S32750 round bars is moderate to difficult due to their high strength, requiring suitable cutting tools. Weldability is good when using compatible filler metals, allowing reliable joints for structural use.

Q: What is the advantage of the duplex microstructure in S32750?

A: The duplex microstructure combines both ferritic and austenitic phases, providing superior strength, enhanced toughness, and excellent resistance to stress corrosion cracking and fatigue compared to single-phase steels.

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