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About Stainless Steel 316 Flat Bar Supplier & Exporter

Steelage Alloys recognized as a top-tier SS 316 flat bar exporter in India. Stainless Steel 316 is an austenitic grade steel that contains molybdenum, which significantly improves its resistance to pitting, crevice corrosion, and chemical attack, especially in marine and chloride-rich environments. It also offers excellent weldability, strength, and high-temperature performance, making it a preferred choice for demanding applications

Steelage Alloys, we offer a wide range of SS 316 flat bars in various sizes, finishes, and specifications. Whether you need thin strips or heavy-duty structural flats, we have the capacity to fulfill both custom and bulk orders with precision.

SS 316 stainless steel belongs to the austenitic family of stainless steels and is well-regarded for its superior corrosion resistance properties. What sets SS 316 apart from other stainless steels is its addition of molybdenum, a key element that dramatically enhances resistance to pitting, crevice corrosion, and chemical attacks—especially in chloride or marine environments. This makes SS 316 an ideal material for applications exposed to harsh conditions like seawater, chemical processing, and coastal infrastructure.

Technical Specifications of SS 316 Flat Bars

Grade: Stainless Steel 316 / 316L
Standard: ASTM A240 / ASME SA240
Type: Hot Rolled, Cold Drawn, Pickled, or Polished
Finish: Bright, Black, Polished (No.1, 2B, BA, No.4, No.8)
Thickness Range: 3 mm to 100 mm
Width Range: 20 mm to 500 mm
Length: 1000 mm to 6000 mm (or custom-cut to size)
Form: Flat Bar, Strip, Rectangle, or Custom Profiles

Equivalent Material Grades for SS 316 Flat Bars

Standard	Werkstoff No.	UNS	JIS	BS	GOST	AFNOR	EN
SS 316	1.4401 / 1.4436	S31600	SUS 316	316S31 / 316S33	–	Z7CND17-11-02	X5CrNiMo17-12-2 / X3CrNiMo17-13-3
SS 316L	1.4404 / 1.4432	S31603	SUS 316L	316S11 / 316S12	03Ch17N14M3	Z2CND17-12	X2CrNiMo17-12-2
SS 316Ti	1.4571	S31635	SUS 316Ti	320S31	10Ch17N13M2T	Z6CNDT17-12	X6CrNiMoTi17-12-2

Popular & Widely Used Types of SS 316 Flat Bars

Type	Description	Common Applications
Hot Rolled SS 316 Flat Bar	Produced by heating billets above the recrystallization temperature and rolling them into flat bars. Offers good surface finish and strength, suitable for general engineering and structural uses.	Construction, shipbuilding, heavy machinery
Cold Drawn SS 316 Flat Bar	Manufactured by drawing through dies at room temperature for precise dimensions and a smoother finish. Provides higher tensile strength and improved tolerance.	Precision components, shafts, fasteners
Polished SS 316 Flat Bar	Surface polished to various grades (No.4, No.8, mirror finish) for aesthetic and hygienic applications.	Food processing, pharmaceutical, decorative structures
Pickled & Passivated SS 316 Flat Bar	Chemically treated to remove scale and enhance corrosion resistance. Ideal for use in highly corrosive environments.	Chemical plants, marine hardware, offshore equipment
Descaled / Mill Finish SS 316 Flat Bar	Supplied in natural finish directly after hot rolling and descaling. Cost-effective and easy to machine.	Fabrication, supports, brackets
Custom Cut SS 316 Flat Bar	Cut and machined to client-specified dimensions and tolerances for specialized industrial applications.	OEM manufacturing, custom fabrication projects

Available Dimensions and Size Range of 316 Stainless Steel Flat Bars

Parameter	Available Range / Specification
Thickness	3 mm to 100 mm
Width	20 mm to 500 mm
Length	1000 mm to 6000 mm (Custom cut lengths available)
Tolerance	As per ASTM A484 / EN 10058 or customer requirement
Edge Condition	Square Edge, Round Edge, Sheared Edge
Surface Finish	Hot Rolled, Cold Drawn, Polished (No.1, 2B, BA, No.4, No.8)
Form	Flat Bar, Rectangular Bar, Strip, Custom Profiles
Condition	Annealed, Pickled, Polished, or Work Hardened
Manufacturing Process	Hot Rolled / Cold Drawn
Packaging	Bundled with end caps, wrapped in HDPE, or customized export packaging

Chemical Composition of Stainless Steel 316 Grade

Element	Percentage (%)	Remarks
Chromium (Cr)	16.0 – 18.0	Provides corrosion resistance and strength
Nickel (Ni)	10.0 – 14.0	Enhances corrosion resistance and ductility
Molybdenum (Mo)	2.0 – 3.0	Improves resistance to pitting and crevice corrosion
Carbon (C)	≤ 0.08	Low carbon content prevents carbide precipitation
Manganese (Mn)	≤ 2.00	Adds toughness and hardness
Silicon (Si)	≤ 1.00	Improves oxidation resistance
Phosphorus (P)	≤ 0.045	Maintains weldability and mechanical properties
Sulfur (S)	≤ 0.030	Minimizes inclusions and improves machinability
Iron (Fe)	Balance	Main constituent of the alloy

Mechanical Strength and Physical Properties of SS 316 Flat Bars

Property	Value / Range	Remarks
Tensile Strength (UTS)	515 – 690 MPa	Maximum stress the material can withstand
Yield Strength (0.2% Proof)	≥ 205 MPa	Stress at which permanent deformation begins
Elongation (A%)	≥ 40%	Indicates ductility and formability
Hardness (Brinell)	≤ 217 HB	Resistance to indentation
Modulus of Elasticity (E)	193 GPa	Material stiffness
Density	8.0 g/cm³	Standard density of SS 316
Melting Point	1375 – 1400°C	High temperature resistance
Thermal Conductivity	16 W/m•K	Heat conduction efficiency
Specific Heat Capacity	500 J/kg•K	Heat absorption capacity
Electrical Resistivity	0.74 μΩ•m	Electrical resistance of the alloy
Corrosion Resistance	Excellent	Resistant to chloride and acidic environments
Weldability	Excellent	Suitable for TIG, MIG, and arc welding
Workability	Good	Can be machined, formed, and bent easily

Industrial Applications & End Uses of SS 316 Flat Bars

Industry / Sector	Typical Applications
Marine & Offshore	Shipbuilding, boat fittings, offshore platforms, seawater equipment
Chemical & Petrochemical	Chemical processing equipment, reactors, storage tanks, pipelines
Food & Beverage	Food processing machines, conveyors, dairy equipment, brewery equipment
Pharmaceutical	Laboratory equipment, cleanroom machinery, medical instruments
Construction & Architecture	Handrails, structural supports, decorative facades, bridges
Oil & Gas	Refineries, pipelines, valves, offshore rigs
Automotive & Engineering	Shafts, fasteners, frames, machinery components
Water Treatment & Desalination	Pumps, filters, tanks, desalination plants
Power & Energy	Boilers, heat exchangers, turbines, nuclear plants

Why Choose Us as Your SS 316 Flat Bar Supplier

We are proud to be among the most trusted and reputed manufacturers, suppliers and exporters of SS 316 Flat Bar in India. We have ensured that we have been the customer choice to industries in the globe by our quality, innovation, and customer satisfaction. Our product is made of only high grade stainless steel 316 which meets standards of various countries like ASTM, ASME and DIN. Every flat bar is manufactured to high quality in order to provide better corrosion resistance, strength, and durability even in extreme conditions. We have come up with SS 316 Flat Bars in different sizes, thicknesses and finishes to cover different industrial needs. You can get the standard size or a bespoke solution that would perfectly fit your project and this is what Steelage Alloys can offer to you. We mix cheap prices with effective logistics and you will receive the highest-quality SS 316 Flat Bars at the right place and at the right time irrespective of where you are.