Stainless Steel 303 Square Bar

Neeka Tubes is a reliable producer of Stainless Steel 303 Square Bars. Ensuring top-quality and durable products. SS 303 Square Bar is a free-machining austenitic stainless steel known for excellent corrosion resistance and machinability. It comes in various surfaces like HRAP, hot rolled pickled, sandblasted, cold drawn, polished and hairline finishes. Making it ideal for precision components and machining applications. The square shape provides uniform strength and stability. Its precise edges assure easy fabrication and reliable performance in structural and industrial uses.

SS 303 square bar (DIN 1.4305 / UNS S30300) contains 17-19% chromium and 8-10% nickel, ensuring good corrosion resistance and machinability. It has a tensile strength of 85,000 psi and a yield strength of 45,000 psi. With 50% elongation and a hardness of Rockwell B 95 it is strong and durable. The square bar also known as Box Bar offers stability. Making it useful for machining and structural applications.

Buy Huge Quantity of Stainless Steel 303 Square Bar, stainless steel 303 Square rod, SS 303 bright bar, SS 303 Square bar stock, ASTM A276 SS 303 square bar, Buy Stainless Steel 303 Square Bar at Best Price in India.

stainless-steel-303-square-bar

Features of Stainless Steel 303 Square Bar

  • Superior Machinability: SS 303 square bars are designed for easy machining operations. The added sulfur content makes them cut faster than standard grades. Chips break cleanly without tangling around cutting tools. Machine shops prefer this grade for high-volume production runs.
  • Smooth Surface Finish: These bars arrive with polished surfaces that need minimal finishing work. The clean edges and corners look professional right out of the box. This quality reduces prep time before final assembly or coating. The finished parts have a consistent appearance across batches.
  • Easy Weldability & Fabrication: While 303 isn’t the easiest grade to weld, it can be joined with proper technique. Pre-heating and filler selection matter for strong welds. The material bends and forms well for creating custom shapes.
  • Size Availability: Common sizes range from small 10mm bars to larger 100mm sections. Stock sizes cover most standard machining and fabrication needs. Special dimensions can be ordered for unique project requirements. You’ll find the right size for precision parts or larger components.
  • Stable Square Shape: The four-sided profile stays true during cutting and machining operations. Corners remain sharp and edges stay straight under normal handling. This stability makes alignment and assembly more accurate. Parts fit together cleanly without gaps or misalignment issues.
  • Versatile Usage: These bars work well for bolts, nuts, and threaded components. Shafts, fittings, and valve parts are common applications too. Food processing equipment often uses 303 for its machining benefits. The material adapts to many industrial and commercial projects.

UNS S30300 stainless steel square bar is used in making shafts, gears, fasteners and fittings. Its machinability makes it ideal for precision components in automotive and aerospace industries. It is also used in food processing and marine applications. Because of its corrosion resistance. The square shape provides stability, making it ideal for structural frameworks and machinery parts needing uniform load distribution.

Most Common Types of Stainless Steel 303 Square Bars

Square Bar

SS 303 Solid Square Bar

Stainless steel 304 square bar for industrial and construction applications.

Hot Rolled Annealed Pickled SS 303 Square bar

ss-304-sqiare-bar

12mm SS 303 Square Bar

ss-bright-bar

SS 303 Square Bright Bar

ss-square-rod

SS 303 Square Rod

cold-drawn-square-bar

Cold Drawn SS 303 Square Bar

8mm stainless steel square bar.

8mm SS 303 Square Bar

Stainless steel square bar with excellent strength and durability.

10mm SS 303 Square Bar

Stainless Steel 303 Square Bars Specifications

SpecificationEN, DIN, ASTM, ASME, API, GB, SUS, AISI, UNS
StandardASTM / ASME – A276 / SA276, A479 / SA479, and A582 / SA582
Sizes3mm to 800mm diameter
Length
  • 12 Random Lengths
  • Long Bars: 15-20 Random Lengths
FinishPolished, Peeled, Bright Drawn, Bright, Cold Drawn Turned, Centreless Ground, Black, Annealed, Rough Turned, Grinding, Smooth Turned
TolerancesH8, H13, H11, H10, H9, K9, H12, K11, K12, K10
Surface Finish1D, 8K, HL, NO.3, NO.1, BA, 2B, NO.4, 2D
Production MethodRolled / Forged
Characteristics
  • Cold Working : Good
  • Weldability: Very Good
  • Square Rod Corrosion Resistance: Excellent
  • Heat Resistance: Good
  • Heat Treatment: Poor
  • Hot Working: Fair
  • Machinability: Good
Typical application of SS Square Bar
  • Braces
  • Framework
  • Shafts
  • Supports
  • Marine
  • Axels
  • Food industry
Services
  • Heat Treatment
  • Production Bar Cutting
  • Chemical Milling
  • Turn, Ground, and Polishing
  • Surface Machining
  • Shearing
  • Precision Grinding
  • Trepanning
  • Rigidizing
  • Custom Packing
Our Stainless Steel Square Bar conforms to Standard ISO 15156/ NACE MR0175
We Offers Custom Sizes and fast delivery of Stainless Steel 303 Square Bars in Mumbai, Check Dimensions & Sizes of SS 303 Square Bar.
ElementCCrMnNiPSSi
SS 3030.15 max0.15 min2 max8 – 100.20 max0.15min1max
ElementTensile StrengthYield StrengthElongationReduction in AreaHardness
SS 303500-750 MPa190 MPa35%230 HB
STANDARDWERKSTOFF NR.UNSJISBSGOSTAFNOREN
SS 3031.4305S30300SUS 303

Contact Neeka tubes today for a best offer & competitive quotation Of Stainless Steel 303 Square Bar

Please Call on +91 7700067892 or drop an E-Mail : sales@neekatubes.net

Stainless Steel 303 Square Bar Size Chart

Size (mm)Size (Inches)Weight (kg/m)
6 x 61/4β€³ x 1/4β€³0.28
8 x 85/16β€³ x 5/16β€³0.50
10 x 103/8β€³ x 3/8β€³0.79
12 x 121/2β€³ x 1/2β€³1.13
16 x 165/8β€³ x 5/8β€³2.01
20 x 203/4β€³ x 3/4β€³3.14
25 x 251β€³ x 1β€³4.91
32 x 321-1/4β€³ x 1-1/4β€³8.03
40 x 401-1/2β€³ x 1-1/2β€³12.56
50 x 502β€³ x 2β€³19.63
65 x 652-1/2β€³ x 2-1/2β€³33.17
75 x 753β€³ x 3β€³44.26
100 x 1004β€³ x 4β€³78.50

Stainless Steel 303 Square Bar Weight Chart

SQUARES
Size(mm)WT PER FEET IN KGSWT PER MTR IN KGS
160.622.05
180.792.59
200.762.49
221.183.87
251.525.00
281.916.27
302.197.20
322.508.19
363.1610.37
383.5211.55
403.9012.80
454.9416.20
506.1020.00
567.6525.08
60
65
70
75
80
90
100

SS 303 Square Bar Packing & Marking

Testing and Packing

SS 1.4305 square rods are accompanied with a Mill Test Certificate, Positive Material Identification Test Report, Visual Inspection Report, Third Party Inspection Report and NABL Certified Laboratory Report. Our team ensures that it packs the products carefully using wooden crates, bubble wraps and plastic covers to avoid any damage during the transportation. They are well labelled to ease identification and safe packaging and delivery of each package.

Shipping and marking

UNS S30300 square stainless steel rods are delivered on time with proper packaging to prevent damage. Each bar is clearly marked with grade, size and heat number for easy identification. We supply products with test certificates and analysis reports. Guaranteeing quality and traceability. Our efficient logistics team assures safe and prompt delivery to customers worldwide.

Certifications & Packaging

To ensure its outstanding quality, SS 303 square bar is subjected to various tests, including hardness, pitting resistance, hydrostatic/radiography, chemical/mechanical, micro/macro, and IGC/PMI. Each batch is certified with mill test certificates, third-party inspection reports, and compliance documentation. To protect our pipes throughout shipment and storage, we pack with hardwood boxes, bundles, or plastic wrapping. It meets ASTM A276, and ASTM A479 requirements, and our tubing is of international benchmark quality.

Searching for ready stock of Stainless Steel 303 Square Bar in Mumbai?

Industrial Application of SS 303 Square Bar

CLINICAL & LABORATORY TESTS

A Trusted Healthcare Partner Providing You With High Quality Test Services to Manage All Health Effectively!

Neeka Tubes
With a belief that knowledge is power, we connect our patients directly with their results so they have valuable health information when they need it most, care about our people and are committed to excellence in the work we do for people to grow and strive for excellence.
Health, Wellness and Insurance
97% customer satisfaction rate
Family Scholarship Program
While we believe we are more than just numbers, the depth of our laboratories is pretty impressive.
Neeka Tubes
Michael Brian
The Founder
Neeka Tubes