Super Duplex 2507 Round Bar

Manufacturer, Supplier & Exporter of Super Duplex 2507 Round Bar

Super Duplex 2507 Round Bar is a premium-grade duplex stainless-steel bar known for its extraordinary combination of high tensile strength, superior corrosion resistance, and outstanding fatigue performance. It is specially engineered for applications that require long service life and reliability under extremely harsh conditions. Riddhi Siddhi Impex, a reputed manufacturer and supplier in India, offers top-quality Super Duplex 2507 Round Bars manufactured with advanced metallurgical processes. These bars are widely preferred in industries dealing with seawater, chemicals, petrochemicals, and high-pressure environments thanks to their exceptional resistance to pitting, crevice corrosion, and chloride stress-corrosion cracking..

The alloy composition of Super Duplex 2507 contains high levels of chromium, molybdenum, nitrogen, and nickel, which significantly enhances its corrosion resistance and mechanical strength. Its duplex microstructure—consisting of roughly equal parts of ferrite and austenite—gives it twice the strength of common austenitic grades like 316L. Riddhi Siddhi Impex produces Super Duplex 2507 Round Bars under strict metallurgical controls to achieve the ideal phase balance, ensuring maximum performance in pressure vessels, marine components, and offshore structures. Its ability to resist chloride-induced cracking makes it one of the most dependable materials for coastal and marine applications..

Super Duplex 2507 Round Bars supplied by Riddhi Siddhi Impex undergo a controlled manufacturing process that includes hot forging, hot rolling, heat treatment, solution annealing, and precision straightening. The manufacturing process is supported by state-of-the-art equipment, and each batch is fully traceable with complete documentation. Bars are subjected to PMI testing, tensile testing, hardness tests, ultrasonic testing, and microstructure analysis. Riddhi Siddhi Impex ensures dimensional accuracy, smooth surface finish, and uniform mechanical performance, making these bars suitable for heavy engineering industries, oil & gas equipment, and high-stress mechanical components..

Super Duplex 2507 Round Bar is valued for its exceptional mechanical strength—often more than double that of standard stainless-steel grades—and its ability to function effectively in highly corrosive environments. It exhibits excellent resistance to seawater corrosion, making it ideal for desalination plants, offshore platforms, and marine engineering structures. Additionally, its high fatigue strength and crack resistance make it suitable for dynamic load applications. The alloy’s low thermal expansion and high thermal conductivity also help reduce distortion during fabrication and high-temperature exposure, adding to its stability and practicality on job sites..

Due to its high-performance characteristics, Super Duplex 2507 Round Bar is widely used in high-pressure chemical processing equipment, submarine pipelines, heat exchangers, pressure vessels, seawater cooling systems, marine fittings, structural supports, and turbine components. Its ability to withstand acidic, alkaline, and chloride-rich environments makes it suitable for aggressive chemical processing units. Riddhi Siddhi Impex supplies these bars in various finishes such as black bar, bright bar, peeled bar, centerless ground, and polished variants, meeting a wide range of industry-specific applications..

Super Duplex 2507 Round Bar – Specifications

Specification	Description
Product Name	Super Duplex 2507 Round Bar
Manufacturer / Supplier	Riddhi Siddhi Impex (India)
Material Grade	UNS S32750 / S32760
Size Range	10mm to 350mm Diameter
Length	1 Meter – 6 Meters (Custom Sizes Available)
Finish	Black, Bright, Polished, Peeled, Centerless Ground
Manufacturing Process	Hot Rolled, Cold Drawn, Forged, Solution Annealed
Testing	PMI, Hardness, UT Test, Tensile Test, Eddy Current Test

Chemical Composition of Super Duplex 2507

Element	Content (%)
Chromium (Cr)	24 – 26%
Nickel (Ni)	6 – 8%
Molybdenum (Mo)	3 – 5%
Nitrogen (N)	0.24 – 0.32%
Manganese (Mn)	≤ 2%
Silicon (Si)	≤ 1%
Phosphorus (P)	≤ 0.03%
Carbon (C)	≤ 0.03%
Iron (Fe)	Balance

Mechanical Properties of Super Duplex 2507 Round Bar

Property	Value
Tensile Strength	795 MPa Min
Yield Strength	550 MPa Min
Elongation	25% Min
Hardness	≤ 310 HB
Impact Strength	High (Excellent Toughness)

Dimension Chart of Super Duplex 2507 Round Bar

Diameter (mm)	Approx. Weight (kg/m)
10 mm	0.62
20 mm	2.47
30 mm	5.58
40 mm	9.87
50 mm	15.43
60 mm	22.17
80 mm	39.47
100 mm	61.60

Equivalent Grades of Super Duplex 2507

Standard	Equivalent Grade
UNS	S32750 / S32760
EN	1.4410
WNR	1.4410
Trade Name	Super Duplex 2507

Equivalent Standards

Standard	Description
ASTM A276	Standard for Stainless Steel Bars
ASTM A479	Bars Used for Pressure Vessels
ASME SA276	ASME Standard for SS Bars
EN 10088	European Stainless Steel Standard

Other Types of Super Duplex 2507 Round Bars

Type	Description
Hot Rolled Round Bar	Used for heavy structural and industrial applications
Cold Drawn Round Bar	High accuracy and smooth finish
Bright Round Bar	Mirror-finished surface
Forged Round Bar	High strength and durability
Black Bar	As-rolled industrial applications

Riddhi Siddhi Impex offers Super Duplex 2507 Round Bars in sizes ranging from small-diameter precision machining bars to large-diameter heavy engineering bars. They offer custom cutting, CNC machining, threading, turning, chamfering, and heat treatment services on request. Clients can also choose from hot-rolled, forged, cold-drawn, or solution-annealed bars depending on the requirement. Each bar is packaged using seaworthy material, plastic caps, and protective bundling to ensure damage-free delivery during transit to any part of India.

Frequently Asked Questions (FAQs)

Q1: Where is Super Duplex 2507 Round Bar used?

A1: It is used in marine equipment, oil & gas pipelines, offshore platforms, desalination plants, and pressure vessels.

Q2: What makes Super Duplex 2507 better than Duplex grades?

A2: It offers higher strength, superior corrosion resistance, and better chloride stress-corrosion cracking resistance.

Q3: Does Riddhi Siddhi Impex offer custom cutting?

A3: Yes, they provide custom cutting, machining, threading, and finishing options.

Q4: Is Super Duplex 2507 suitable for seawater applications?

A4: Yes, it performs excellently in seawater and highly corrosive chloride environments.