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Panchdeep Metal
Manufacturer of Stainless Steel Products
Panchdeep MetalPanchdeep Metal
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What is Stainless Steel 303 Round Bar?

The Stainless Steel 303 Round Bar (also known as AISI 303) is a type of metal bar made from an austenitic stainless steel alloy known as 303. This specific grade is specially designed for situations where parts need to be machined quickly and efficiently, such as on automated machinery that runs continuously. The grade carries sulfur additions that make the chips break easily, and because of that, the bar responds well to high-speed operations. It’s used across workshops that want fast output.

Here at Panchdeep Metal Corporation, this grade holds a prominent place in our stainless inventory. Our team supplies Stainless Steel 303 Round Bars and Stainless Steel 303 Rods to customers who prioritise consistent quality over last-minute fixes. Since we manufacture and stock a wide range of stainless products (304, 316, 321, and many other ferrous and non-ferrous alloys), we keep 303 in ready volumes so clients don’t pause their schedules waiting for a batch.

SS 303 Bars have been widely used in shafts, screws, bushings, fasteners, pins, and sometimes small turned parts, where constant machining is simply a part of the job. Engineers often use them in instrument components, automotive linkages, pump parts, and fittings that require decent corrosion resistance but place machining ease at the top. Simple. Reliable. And quick to shape.

SS DIN 1.4305 Round Bar & ASTM A276 AISI 303 Stainless Steel Rods Supplier in India

Duplex Steel S31803 Sheet Plates

Table of Contents

Specification of Stainless Steel 303 Round Bar

Equivalent Properties of Stainless Steel 303 Round Bar

Chemical Composition of Stainless Steel 303 Round Bar

Size Chart of Stainless Steel 303 Round Bar

Application of Stainless Steel 303 Round Bar

Why Choose Us for Stainless Steel 303 Round Bar

SS 303 Round Bar & Rods Overview

Cold-finished SS 303 Round Bars are best for industries that want the smoothest surfaces even before their tool touches the bar. These bars are mainly chosen for extensive machining, especially in automatic screw machines, where quick tool engagement and steady chip breaking matter more than anything else. The grade’s machinability is one of its strongest points. It stays identifiable through its UNS S30300 name and WNR 1.4305 designation, which many designers include in their drawings.

Customers often request unusual sizes or thicknesses after there is a shift in the production schedule. But don’t worry, Panchdeep Metal keeps customisation open. We cut, finish, and pack orders as per the exact dimensions clients need, and in a way that matches national and international standards. Prices stay competitive, partly because our stock movement stays active and we maintain large volumes of 303 stainless steel round rod day after day. Quality holds. Every batch is checked. That’s our priority.

Stainless Steel 303 Round Bars & Rods Specification

Specification ASTM A276, ASME SA276
Grades Stainless Steel 303
Form Round Bars, Rods, Square Bars, Hex Bars, Rectangular Bars, Cold Drawn Bars
Finish Bright, Black, Polished, Cold-Finished
Length Cut-to-size or standard lengths
Diameter Range From small precision stock to heavy industrial sections
Condition Annealed or hardened and tempered, depending on need

Stainless Steel 303 Round Bars Equivalent Grades

Standard Grade
UNS S30300
WNR 1.4305
AISI 303
JIS SUS 303
BS 303S31
GOST 12X18H10

Stainless Steel 303 Round Bar Chemical Composition

Element Content (%)
Carbon 0.15 max
Manganese 2.00 max
Silicon 1.00 max
Phosphorus 0.20 max
Sulfur 0.15 min
Chromium 17.0 – 19.0
Nickel 8.0 – 10.0
Iron Balance

ASTM 303 Stainless Steel Round Bar Sizes – Complete Size Chart

Diameter (mm) Diameter (inch) Approx. Weight (kg/m)
6 1/4″ 0.22
8 5/16″ 0.39
10 3/8″ 0.62
12 1/2″ 0.89
16 5/8″ 1.58
20 3/4″ 2.47
25 1″ 3.85
32 1-1/4″ 6.31
40 1-1/2″ 9.86
50 2″ 15.40
63 2-1/2″ 24.00
75 3″ 35.40

Stainless Steel 303 Round Bar & Rods Applications & Industries

301L Spring Steel Strip is known for its high strength, good formability, and its ability to keep shape after repeated bending, and mentioning it here gives a quick point of comparison. SS 303 moves in a slightly different direction. It aims for machinability rather than high spring strength, but many industries still rely on it for parts that must stay stable in service. Springs and clips rarely use it, but clamps, washers, and turned precision components often do.

In many workshops, 303 becomes the go-to for screws, gears, shafts, pump stems, instrument components, and light structural parts. Automotive users take it for linkages and sensor housings; aerospace teams adopt it for fittings and connectors; electrical groups rely on it for hardware that holds wiring paths or enclosure assemblies. Industrial equipment builders use it for general components that need machining freedom.

These industries turn to Stainless Steel 303 because it brings durability, respectable corrosion resistance, and enough strength for daily mechanical loads. It also welds in certain conditions, though carefully, due to its sulfur content, and the final parts balance strength with a manageable weight. That mix works well. It keeps production predictable.

Why Choose Panchdeep Metal for Stainless Steel 303 Round Bar & Rods?

Customers who work with Panchdeep Metal often mention one thing before anything else: reliability. We keep bulk quantities ready, and because our team understands how suddenly manufacturing timelines shift, our dispatch schedules stay flexible. We manufacture, stock, and export SS 303 Round Bars in shapes and sizes that fit real-world drawings rather than generic catalogues.

Not just that, our testing methods stay consistent, and each batch moves through checks that track dimension accuracy, finish, and chemistry. The company’s experience with ferrous and non-ferrous materials helps solve problems before they show up in the workshop. And when clients request special lengths or surface finishes, we cut and prepare them quickly without letting administrative steps slow the process down.
In simple words: we deliver what we promise, and we do it on time.

FAQ

What is SS 303 Round Bar used for?

SS 303 Round Bar is mainly used for fast-machined components (screws, bolts, shafts, pins, gears, and general turned parts). Workshops that depend on automatic screw machines or CNC turning centres choose it because of its chip-breaking behaviour and smooth machining response.

Does Panchdeep Metal provide Custom Stainless Steel 303 Round Bar & Rods?

Yes. Panchdeep Metal offers custom sizes, finishes, and lengths for Stainless Steel 303 Round Bars and Rods. Clients can request non-standard dimensions, and the material is produced, cut, or finished exactly as per those needs.

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Supplier and Exporter of SS 303 Round Bar in Cities of India Like

Navi Mumbai, Moscow, Ankara, Mexico City, Nagpur, Dubai, Ho Chi Minh City, Vung Tau, Toronto, Gurgaon, Gimhae-si, Baroda, Al Khobar, Milan, Dammam, Jaipur, Kuala Lumpur, Thiruvananthapuram, Indore, Tehran, Haryana, Thane, Los Angeles, Al Jubail, Busan, Petaling Jaya, Lahore, Colombo, Sharjah, Howrah, Riyadh, Bengaluru, Coimbatore, Bangkok, Calgary, New Delhi, La Victoria, New York, Hanoi, Pimpri-Chinchwad, Perth, Caracas, Melbourne, Muscat, Madrid, Aberdeen, Kanpur, Visakhapatnam, Vadodara, Ernakulam, Ulsan, Singapore, Karachi, Port-of-Spain, Manama, Bhopal, Cairo, Secunderabad, Kolkata, Abu Dhabi, Chiyoda, Courbevoie, Istanbul, Granada, Seoul, Jamshedpur, Doha, Edmonton, Lagos, Santiago, Jakarta, Chennai, Mumbai, Jeddah, Kuwait City, Ahmedabad, Sydney, Ranchi, Geoje-si, London, Ahvaz, Algiers, Noida, Brisbane, Chandigarh, Faridabad, Bogota, Dallas, Surat, Hong Kong, Hyderabad, Houston, Rio de Janeiro, Atyrau, Montreal, Ludhiana, Nashik, Pune, Rajkot.

Supplier and Exporter of SS 303 Round Bar in Countries Like

Turkey, Puerto Rico, Portugal, Serbia, Netherlands, Oman, Bulgaria, Iran, Hong Kong, France, Bahrain, Poland, Chile, Ecuador, Kazakhstan, Angola, New Zealand, Australia, Pakistan, Nepal, Algeria, Gambia, Romania, Italy, Ukraine, Germany, Sweden, Vietnam, Colombia, Egypt, Bolivia, Costa Rica, China, Denmark, Lebanon, Finland, Spain, Mexico, Argentina, Qatar, Nigeria, Japan, Tibet, Estonia, Gabon, United States, Malaysia, Mongolia, Israel, Philippines, Yemen, Saudi Arabia, Bhutan, Greece, Sri Lanka, Taiwan, Namibia, Jordan, Indonesia, Mexico, Belarus, Lithuania, Croatia, India, Libya, Czech Republic, Iraq, United Arab Emirates, Poland, Switzerland, Singapore, Iran, Russia, Kenya, Hungary, Norway, Bangladesh, United Kingdom, Canada, Zimbabwe, Trinidad & Tobago, Azerbaijan, Tunisia, South Africa, South Korea, Belgium, Ireland, Morocco, Ghana, Austria, Macau, Slovakia, Chile, Venezuela, Kuwait, Brazil, Peru, Afghanistan, Thailand, Nigeria.
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Panchdeep Metal Corporation Office No.03, 1st Floor, Neo amity Bldg,
1st carpenter street,
Mumbai - 400004

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