Manufacturer, Supplier & Exporter of Stainless Steel 310S Round Bar

Riddhi Siddhi Impex, headquartered in Mumbai, is a leading manufacturer, supplier, and exporter of stainless steel products in India. With over two decades of experience, the company offers a comprehensive range of stainless steel bars, rods, sheets, coils, flanges, and fittings. Their specialization in high-performance and heat-resistant alloys makes them a trusted supplier for industries requiring premium quality materials, including the 310S stainless steel round bars...

Stainless Steel 310S is an austenitic stainless steel renowned for its exceptional high-temperature resistance and superior corrosion resistance. The “S” in 310S indicates a lower carbon content compared to SS 310, which improves weldability and minimizes carbide precipitation, ensuring durability in welded assemblies. This makes 310S ideal for industrial applications such as furnace parts, heat exchangers, and petrochemical equipment..

The chemical composition of 310S typically includes 24–26% chromium, 19–22% nickel, with small amounts of manganese, silicon, and molybdenum. The carbon content is restricted to a maximum of 0.08%, enhancing its resistance to sensitization during welding. These chemical characteristics give 310S excellent oxidation resistance and stability at elevated temperatures, making it highly suitable for components exposed to continuous high heat...

Mechanically, 310S exhibits tensile strength ranging from 515 to 730 MPa, yield strength around 205 MPa, and elongation of 40% or higher, providing excellent ductility and flexibility in fabrication. The hardness typically remains below 95 HRB, allowing for machining and forming without excessive tool wear. These properties ensure that 310S round bars can withstand both thermal stress and mechanical loading in demanding industrial environments...

Riddhi Siddhi Impex maintains stringent quality control standards, sourcing raw materials from certified suppliers and conducting inspections throughout the manufacturing process. Each 310S round bar is tested for chemical composition, mechanical strength, and dimensional accuracy, complying with international standards such as ASTM A276, ASTM A479, ASME SB 479, and EN 10278. Mill Test Certificates (MTC) and documentation are provided to guarantee traceability and quality assurance..

Stainless Steel 310S Round Bar

Specification

Product Name	Stainless Steel 310S Round Bar
Manufacturer	Riddhi Siddhi Impex
Material Grade	SS 310S (UNS S31008)
Standard	ASTM A276 / A479 / ASME SB 479 / EN 10278
Form	Round Bar / Rod
Surface Finish	Hot Rolled, Cold Drawn, Polished, Bright
Size Range (Diameter)	6 mm to 300 mm (custom sizes available)
Length	1 m to 6 m (or customized)
Applications	Furnace Components, Heat Exchangers, Burner Parts, Petrochemical Equipment, Gas Turbines, High-Temperature Machinery

Chemical Composition (SS 310S)

Element	Content (%)
Carbon (C)	0.08 Max
Manganese (Mn)	2.00 Max
Phosphorus (P)	0.045 Max
Sulfur (S)	0.03 Max
Silicon (Si)	1.50 Max
Chromium (Cr)	24.0 – 26.0
Nickel (Ni)	19.0 – 22.0
Molybdenum (Mo)	0.75 Max
Iron (Fe)	Balance

Mechanical Properties

Property	Value
Tensile Strength	515 – 730 MPa
Yield Strength (0.2% offset)	205 MPa Min
Elongation	40% Min
Hardness	≤ 95 HRB
Impact Resistance	Excellent, suitable for high-temperature applications

Dimension Chart (Nominal)

Diameter (mm)	Length (mm)
6 – 25	1000 – 6000
26 – 50	1000 – 6000
51 – 100	1000 – 6000
101 – 150	1000 – 6000
151 – 300	1000 – 6000

Equivalent Grades

Standard	Grade
ASTM	A276 / A479 SS310S
EN	1.4845
JIS	SUS 310S
GB	0Cr25Ni20

Equivalent Standards

Standard	Description
ASTM A276	Stainless Steel Bars and Shapes
ASTM A479	General Requirements for Stainless Steel Bars
EN 10278	Cold Drawn Stainless Steel Bars
ASME SB 479	Specification for Stainless Steel Bars for General Use

Other Types of Stainless Steel Bars

Type	Description
SS 304 Round Bar	General-purpose stainless steel with good corrosion resistance
SS 316 Round Bar	Corrosion-resistant bar suitable for marine and chemical applications
SS 321 Round Bar	Heat-resistant stainless steel for high-temperature applications
SS 410 Round Bar	Martensitic stainless steel with high hardness

The company’s domestic supply network is extensive, covering industrial and manufacturing hubs including Mumbai, Delhi, Bengaluru (Bangalore), Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, Nagpur, Indore, Bhopal, Jaipur, Kanpur, Lucknow, Agra, Varanasi, Amritsar, Chandigarh, Mysuru, Udaipur, Jodhpur, Visakhapatnam, Coimbatore, Madurai, Kochi, Thiruvananthapuram, Mangalore, and smaller towns such as Navsari, Valsad, Rajpipla, Narmada, Dahej, Ankleshwar, Chandrapur, Akola, Kolhapur, and Vilayat. This wide coverage ensures prompt delivery and accessibility of 310S round bars across India..

Frequently Asked Questions (FAQs)

Q1: What are the common applications of Stainless Steel 310S Round Bar?

A1: It is widely used in furnace parts, heat exchangers, burner components, gas turbines, and high-temperature machinery.

Q2: Can you provide custom diameters and lengths for SS 310S Round Bar?

A2: Yes, Riddhi Siddhi Impex supplies 310S round bars in custom diameters, lengths, and finishes according to client requirements.

Q3: Is SS 310S suitable for high-temperature and welding applications?

A3: Yes, SS 310S has low carbon content, excellent oxidation resistance, and high-temperature strength, making it ideal for welding and thermal applications.

Q4: What surface finishes are available for SS 310S Round Bar?

A4: Available finishes include hot-rolled, cold-drawn, bright, polished, and custom finishes as per project needs.