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304L (EN 1.4307, UNS S30403) is the low-carbon Stainless Steel variant of the standard austenitic grade 304, with carbon content restricted to 0.030% max. This reduction limits chromium carbide precipitation at grain boundaries during welding and thermal exposure in the 425-850°C sensitization range, giving the grade significantly better resistance to intergranular corrosion in the heat-affected zone. Chromium content of 18.0–20.0% and nickel content of 8.0–12.0% provide the corrosion resistance,
Ductility, and non-magnetic austenitic structure the material is known for, while typical mechanical properties in the annealed condition include a minimum yield strength of 190 MPa, tensile strength of 500–700 MPa, and elongation of 45% minimum.
Explore Our 304L Stainless Steel RangeManufactured to ASTM A276, ASTM A479, and EN 10088 specifications, this material is available in round, hexagon, square, and flat bar sections, produced through hot rolling, solution annealing, pickling, and cold finishing to achieve the dimensional tolerances, straightness, and surface finish required for machining 304L stainless steel to precision engineering standards. For teams cross-referencing legacy drawings, the 304L stainless steel equivalent designations are AISI 304L, DIN-EN 1.4307, and German grade X2CrNi18-9 all describing the same chemistry under different national/international standards.
Aamor Inox is among the 304L stainless steel suppliers manufacturing bright round bar, cold drawn, hot rolled peeled, and precision ground shafting product lines, with size ranges from 4 mm to 150 mm, lengths up to 11 meters, straightness to 0.25 mm/meter TIR, and surface finishes to Ra 0.2 µm. Production is supported by NADCAP-accredited heat treatment and non-destructive testing, including 100% water immersion ultrasonic testing and eddy current inspection, ensuring consistent metallurgical and dimensional performance across process engineering, fluid handling, food processing, pharmaceutical, and general engineering applications in over 60 countries.
NADCAP-accredited Heat Treatment as well as Non-Destructive Testing (NDT) – a first for an Indian stainless steel bar producer.
For precision bright bars and cold finished stainless steel products, long-term reliability is heavily influenced by:
At Aamor Inox, our manufacturing philosophy focuses on building repeatability directly into the process itself — not depending only on post-production correction.
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.
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.
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.
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.
AAMOR INOX ® Stainless machines smoother with significantly less waste and supports higher machining rates.
Tools experience less wear and stay sharp longer, helping reduce slowdowns and improve productivity.
AAMOR INOX® Stainless improves chip control and gives more flexibility to meet production goals.
AAMOR INOX ® 304L | AISI 304L | DIN-EN 1.4307 | German Grade X2CrNi18-9
EN: 1.4307
AISI: 304L
UNS: S30403
ASTM: 304L
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.
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.
These systems support demanding machining, fabrication, automation, and process engineering applications.
Aamor Inox operates with strong focus on critical-service engineering applications requiring global quality compliance and process reliability.
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.
For precision engineering applications, surface integrity becomes critically important.
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.
A-30, Site 4, UPSIDC Industrial Area, Sahibabad, Ghaziabad 201010, Uttar Pradesh, India
Plot #10, Site 2, Industrial Area, Loni Road Mohan Nagar, Ghaziabad 201007, Uttar Pradesh, India
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