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304L / 1.4307 Stainless Steel Bright Bars & Profiles

304L Stainless Steel Bright Bars, Precision Ground Bars & Cold Finished Long Products Manufacturer

Aamor Inox manufactures premium-quality 304L / 1.4307 stainless steel bright bars and precision long products for demanding process engineering, fluid handling, food processing, architecture, pharmaceutical, automation, machining, and general engineering industries requiring dependable corrosion resistance, dimensional consistency, weldability, and reliable long-term performance.

Trusted across critical-service engineering applications in more than 60 countries.

Explore Our 304L Stainless Steel Range

Our 304l Stainless Steel Solutions Are Supplied Extensively Across:

  • Europe
  • USA & Canada
  • Middle East
  • South East Asia
  • South America
  • Global Process Engineering Markets

Our 304l / 1.4307 Product Range Includes:

  • Bright Round Centreless Ground Bars
  • Cold Drawn Bars
  • Hot Rolled Peeled Bars
  • Precision Ground Shafting
  • Cold Drawn Flat Bars
  • Cold Drawn Hexagons & Squares
  • HRAP Flats, Angles & Unequal Angles
See Our Global Certifications

NADCAP-accredited Heat Treatment as well as Non-Destructive Testing (NDT) – a first for an Indian stainless steel bar producer. Click here: why Aerospace & Defence Trust Us

Learn More About Our Manufacturing & Testing Capabilities. Explore:
  • Ultrasonic Testing – NADCAP accredited
  • Eddy Current Testing – NADCAP accredited
  • Precision Straightening
  • Heat Treatment Facilities – NADCAP accredited
  • Surface Finishing Capabilities

Process Reliability Matters More Than Final Inspection

For precision bright bars and cold finished stainless steel products, long-term reliability is heavily influenced by:

Long-term reliability is heavily influenced by:

● Process stability
● Controlled Cold Finishing
● Straightness Consistency
● Dimensional Discipline
● And Surface Integrity Throughout Manufacturing

Poorly controlled processing may later contribute to:

● Unstable Machining Behavior
● Dimensional Variation
● Fabrication Inconsistency
● Weld Distortion
● And Reduced Production Efficiency

At Aamor Inox, our manufacturing philosophy focuses on building repeatability directly into the process itself — not depending only on post-production correction.

Our Product Range in 304L Stainless Steel Bars

Bright Bars & Hot Rolled Peeled Bars

With Bright Round Bars processing facilities of 60,000 tons per year, Aamor Inox is one of the largest producers of cold finished stainless steel bars in India.

Technical Specifications
Size range
4 mm – 150 mm (3/16 – 4 ¾ inch) **
Size Tolerances
h9, h10, h11, k12, k13, A-484, EN-10060, DIN-1013 & many more
Length
1 meter upto 11 meters (upto 36 feet)
Chamfering
Available in 30, 45 & 60 degree thru fully automatic both-end chamfering machine
Crack Test
Eddy Current Testing thru Circograph (from Dr. Foerster, Germany) and Magnetic Particle Inspection (MPI) Tested
Ultrasonic Test
100% tested thru Water Immersion based fully-automatic Ultrasonic Testing machine, as per ASTM A-388, EN 10308, API 6A/ISO 10423:2003-PSL 3, SEP 1920:1984, MIL STD 2154
Length Tolerance
Available in special cut to length bars in tolerance – 0/+2mm (-0 +0.25 inch)
Straightness
Upto 0.25 mm / meter TIR (0.0015 inch / feet)
Surface Finish
Ra value 0.2 um (12 RMS) and 240 & 320 Grit Polished
Heat Treatment
Solution Annealed

304L HRAP Flat Bars, Cold Drawn Flats, Squares, Hexagons & Angles

Aamor Inox supplies 304L / 1.4307 stainless steel profiles for structural, fabrication, architectural, machining, automation, food processing, and industrial support applications requiring corrosion resistance, dimensional consistency, and fabrication reliability.

304L HRAP Flat Bars

Used across structural, fabrication, architectural, and industrial engineering applications.

Size Range: 20x5mm upto 150x50mm | 1"x1/8 inch upto 6"x2 inch

Size Tolerances: ASTM A-484 and EN-10058

Length: 2 - 7 meters (8 to 24 feet)

Length Tolerance: -0/+10mm (-0 +0.5 inch)

Surface Finish: HRAP condition

Heat Treatment: Solution Annealed

304L Cold Drawn Flat Bars

Aamor Inox’s 304L / 1.4307 Cold Drawn Flat Bars are developed for precision machining, fabrication, and engineering applications requiring dimensional consistency, flatness stability, and superior surface finish.

Size Range: 30x8mm upto 100x30mm

Size Tolerances: ISO h11

Length: 3 - 6 meters

Length Tolerance: -0/+10mm (-0 +0.5 inch)

Surface Finish: Cold Drawn and Polished condition

Heat Treatment: Solution Annealed

304L Cold Drawn Squares & Hexagon Bars

Aamor Inox offers high-quality Improved Machining (IM) stainless steel 304L / 1.4307 Hexagon & Square bars developed for demanding machining and automation industries. 12 mm - 55 mm (1/2 - 2 inch)

Square Size Range: 12 mm - 50 mm (1/2 - 2 inch)

Size Tolerance: h11

Length: 2 - 6 meters (8 to 20 feet)

Chamfering: 30, 45 & 60 degree automatic both-end chamfering

Testing: 100% Water Immersion Ultrasonic Testing as per ASTM A-388, EN 10308, API 6A/ISO 10423:2003-PSL 3, SEP 1920, MIL STD 2154

Surface Finish: Cold drawn condition, Belt polished condition

304L HRAP Angles

Aamor Inox’s 304L / 1.4307 Stainless Steel Angles are widely used across structural fabrication, architectural engineering, food processing, and industrial support systems.

Size Range: 20x20x3mm upto 100x100x10mm | 3/4"x3/4"x1/8 inch upto 4"x4"x0.375 inch

Size Tolerances: ASTM A-484 and EN-10058

Length: 6 meters (20 feet)

Surface Finish: HRAP condition

Heat Treatment: Solution Annealed

304L Piston Rod Quality Bars & Pump Shaft Quality Bars

Cold worked Precision Piston Rod Bars in grade 304L / 1.4307 are developed for demanding hydraulic, pneumatic, automation, and motion-control applications requiring exceptional straightness, surface finish, dimensional consistency, and corrosion resistance.

Aamor Inox’s 304L / 1.4307 Pump Shaft Quality Bars are engineered for rotating applications where shaft stability, corrosion resistance, low runout, and dependable long-term performance become critically important.

Piston Rod Quality Bars

Size range: 6 mm - 100 mm (1/4 - 4 inch)

Size Tolerances: j6, e6, h6, f6, f7, h7, f8, h8, h9, 1/2 of A484 etc

Length: 1 meter upto 11 meters (upto 36 feet)

Ovality: Half of diameter tolerance

Straightness: 0.25mm per meter max (0.0015 inch per feet)

Surface Finish: Ra - 0.2 um / 12 RMS max

Chamfering: 30, 45 & 60 degree automatic both-end chamfering

Heat Treatment: Solution Annealed

Length Tolerance: -0/+10mm (-0 +0.5 inch)

Testing: Eddy Current Testing, MPI, and 100% Water Immersion Ultrasonic Testing as per ASTM A-388, EN 10308, API 6A/ISO 10423:2003-PSL 3, SEP 1920, MIL STD 2154

Packaging: Protective materials, distance rings, and strong plywood boxes for safe transportation.

Pump Shaft Quality Bars (PSQ)

Size range: 6 mm - 100 mm (1/4 - 4 inch)

Size Tolerances: j6, e6, h6, f6, f7, h7, f8, h8, h9, 1/2 of A484 etc

Length: 1 meter upto 11 meters (upto 36 feet)

Ovality: Half of diameter tolerance

Heat Treatment: Solution Annealed

Straightness: 0.25mm per meter max (0.0015 inch per feet)

Surface Finish: Ra - 0.2 um / 12 RMS max

Chamfering: 30, 45 & 60 degree automatic both-end chamfering

Testing: Eddy Current Testing and 100% Water Immersion Ultrasonic Testing as per ASTM A-388, EN 10308, API 6A/ISO 10423:2003-PSL 3, SEP 1920, MIL STD 2154

Length Tolerance: -0/+10mm (-0 +0.5 inch)

Packaging: Protective materials, distance rings, and strong plywood boxes for safe transportation.

Chemical Composition & Typical Mechanical Properties

Chemical Composition (Typical %)
Grade C max Si max Mn max P max S max Cr Ni
1.4307 0.030 1.00 2.00 0.045 0.015 17.5-19.5 8.0-10.5
304L 0.030 1.00 2.00 0.045 0.030 18.0-20.0 8.0-12.0
Typical Mechanical Properties
Condition Yield Strength Tensile Strength Elongation Hardness / Notes
Annealed 190 MPa min 500-700 MPa 45% min Standard soft condition
Cold Finished Higher depending on reduction Application specific Reduced depending on temper Improved machining & strength characteristics

Type 304L Improved Machining Stainless Steels

At Aamor Inox, machinability isn’t a bonus — it’s a necessity.

With over 20 years of refinement, our stainless steel 304L / 1.4307 Round Bars & CD Hexagons are engineered to machine faster, last longer, and perform better. We maintain tight tolerances, perfect roundness, and superior straightness to meet the demands of high-tech multi-spindle machines like the INDEX MS40.

Plus, our fully automated double-side chamfering line provides precise, customized chamfering (30º, 45º, 60º) with 2-5mm chamfer lengths, making bar feeding even more seamless.

AAMOR INOX ® Stainless Type 304L is identical in every way to standard ASTM or DIN grade, except with respect to machinability.

Increased productivity

AAMOR INOX ® Stainless machines smoother with significantly less waste and supports higher machining rates.

Better tool life

Tools experience less wear and stay sharp longer, helping reduce slowdowns and improve productivity.

Excellent chip control

AAMOR INOX® Stainless improves chip control and gives more flexibility to meet production goals.

Machinability Procedure Variables

  • ▸ Type of cutting fluid used during the process
  • ▸ Type of machining operation being carried out
  • ▸ Rigidity of tooling or fixtures
  • ▸ Tool material and tool geometry

AAMOR INOX ® Stainless Products Available

  • ▸ Smooth Turned / Ground & Polished Round Bars
  • ▸ Cold Drawn & Polished Round Bars
  • ▸ Cold Drawn Square & Hexagon Bars

AAMOR INOX ® Stainless Grades, Chemical Analysis & International Equivalents

Grades Available

AAMOR INOX ® 304L | AISI 304L | DIN-EN 1.4307 | German Grade X2CrNi18-9

International Equivalents

EN: 1.4307
AISI: 304L
UNS: S30403
ASTM: 304L

AAMOR INOX ® Stainless - Chemical Analysis

AAMOR INOX ® 304L: Carbon Max 0.03, Mn Max 1.80, Phosphorus Max 0.045, Sulfur Max 0.030, Chromium 18.00 - 19.50, Nickel 8.00 - 10.50.

Cold Finishing & Precision Bright Bar Capability

Our advanced cold finishing and centreless grinding systems are developed specifically for applications requiring close dimensional tolerances, stable straightness, precision surface finish, dependable machinability, and consistent product geometry.

Capabilities include:

  • ▸ H6, H7 & H8 Tolerance Bars
  • ▸ Precision Roundness Control
  • ▸ Centreless Ground Bars
  • ▸ Polished Bright Bars
  • ▸ Cold Drawn Profiles
  • ▸ Long-Length Precision Bars

Typical manufacturing capability includes:

  • ▸ Size Range - 5 mm - 150 mm
  • ▸ Length - up to 11 meters
  • ▸ Precision Straightness - up to 0.25 mm / meter TIR
  • ▸ Surface Finish - Ra 0.2 µm / 12 RMS max
  • ▸ 240 & 320 grit polished finishes

These systems support demanding machining, fabrication, automation, and process engineering applications.

Aerospace, Pressure Equipment & Global Quality Certifications

Aamor Inox operates with strong focus on critical-service engineering applications requiring global quality compliance and process reliability.

Certifications include:

  • ▸ AS9100D - Aerospace Quality Management System
  • ▸ PED (Pressure Equipment Directive) compliance
  • ▸ AD 2000 Merkblatt W0 approval
  • ▸ NADCAP Accredited Heat Treatment
  • ▸ NADCAP Accredited Non-Destructive Testing (NDT)

Inspection & QA capabilities include:

  • ▸ Water Immersion Ultrasonic Testing
  • ▸ Eddy Current Testing through Dr. Foerster systems
  • ▸ Magnetic Particle Inspection (MPI)
  • ▸ Dimensional laser measurement systems
  • ▸ Precision straightness verification
  • ▸ Ovality, roundness, surface integrity, and process traceability systems

Global Standards & Specification Coverage

AAMOR INOX supports manufacturing aligned with EN 10088, EN 10278, ASTM A276, ASTM A479, ASTM A484, PED requirements, AD 2000 requirements, ASME requirements, and customer-specific engineering specifications. Ultrasonic testing capabilities include ASTM A388, EN 10308, API 6A PSL 3, SEP 1920, and MIL STD 2154.

Surface Integrity & Machining Consistency

For precision engineering applications, surface integrity becomes critically important.

Poor surface quality may later contribute to:

• Inconsistent Machining Behavior
• Poor Surface Finish After Machining
• Dimensional Instability
• Fabrication Inconsistency
• Reduced Long-Term Reliability

Aamor Inox manufacturing systems support:

▸ Controlled Surface Finish Quality
▸ Stable Dimensional Consistency
▸ Dependable Machining Response
▸ Improved Fabrication Behavior
▸ Reliable Process Repeatability

Why Global Customers Choose Aamor Inox for 304L Stainless Steel Products

Customers across demanding process, pharmaceutical, food processing, automation, and precision engineering industries trust Aamor Inox because our manufacturing philosophy focuses on process reliability, metallurgy consistency, dimensional accuracy, surface integrity, fabrication reliability, and repeatable engineering performance.

Precision Bright Bar Expertise
Advanced Cold Finishing Capability
NADCAP Accredited Manufacturing
Advanced Inspection Systems
Superior Straightness Capability
Precision Ground Bar Solutions
Strong Packaging Protection Systems
Batch-to-Batch Repeatability
Full Traceability & Certifications

Frequently Asked Questions (FAQ)

Why is 304L / 1.4307 widely used across engineering industries? +

304L offers dependable corrosion resistance, excellent weldability, good fabrication behavior, hygienic surface characteristics, and stable mechanical performance, making it suitable for a very wide range of industrial applications.

What is the difference between 304 and 304L stainless steel? +

304L contains lower carbon content, which helps improve resistance to intergranular corrosion after welding. This makes 304L particularly suitable for welded fabrications and pressure equipment applications.

Is 304L suitable for food and pharmaceutical applications? +

Yes. 304L is extensively used in food processing, dairy, brewery, and pharmaceutical systems because of its corrosion resistance, cleanability, and hygienic surface characteristics.

Is 304L stainless steel easy to machine and fabricate? +

304L offers very good fabrication and forming characteristics. With controlled bright bar processing and dimensional consistency, it also supports dependable machining performance for precision engineering applications.

What standards are commonly used for 304L stainless steel bars? +

Commonly used standards include EN 10088, ASTM A276, ASTM A479, ASTM A484, PED requirements, AD 2000 requirements, and ASME requirements.

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Stainless Steel Bright Round Bars
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Hexagonal & Square Bars – Cold Drawn
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Cold Drawn Flat Bars
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Angles
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Flats & Squares (HRAP)
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Un-Equal Angles (HRAP)
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High Strength Round Bars
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Hot Rolled Round Bars
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Special Grades & Alloys
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Piston Shaft, Pump Shaft & Precision Bars

Aamor Inox Limited

Corporate Office & Round Bars Manufacturing Unit

A-30, Site 4, UPSIDC Industrial Area, Sahibabad, Ghaziabad 201010, Uttar Pradesh, India

Profile & Section Manufacturing Unit

Plot #10, Site 2, Industrial Area, Loni Road Mohan Nagar, Ghaziabad 201007, Uttar Pradesh, India

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