SS 304 Surgical Tubes | ASTM A269 | UNS S30400 | DIN 1.4301

UNS S30400 SS 304 Surgical Tubes, Werkstoff 1.4301 SS 304 Surgical Tubes, ASTM A269 TP304 Surgical Tubes, 304 Stainless Steel Surgical Tubing, SS 304 Seamless Surgical Tubes, SS 304 Welded Surgical Tubes in India.

PM Industries manufactures, supplies, and stocks ASTM A269 SS 304 Surgical Tubes in a range of outside diameters, wall thicknesses, and surface finishes. ASTM A269 covers seamless and welded austenitic stainless steel tubing for general corrosion-resisting and low- or high-temperature service. Grade 304 (UNS S30400) is the most widely used austenitic stainless composition in this specification, providing the combination of corrosion resistance, formability, and surface finish quality that hygienic and precision applications require.

ASTM A269 SS 304 Surgical Tubes Manufacturer, UNS S30400 SS 304 Surgical Tubes Supplier, Werkstoff 1.4301 SS 304 Surgical Tubes Stockist, SS 304 Seamless Surgical Tubes Exporter in India.

The term "surgical tube" in this context refers to the surface finish and dimensional precision standard applied to the tube, not exclusively to medical end use. Surgical grade stainless tubing is produced to tight outside diameter and wall tolerances with a highly polished internal and external surface, typically electropolished or bright annealed, that minimizes surface roughness, bacterial adhesion potential, and particulate trapping. Those characteristics make it the standard tube specification for medical instruments, pharmaceutical equipment, food processing, and laboratory systems where surface cleanliness is a functional requirement alongside mechanical performance.

Surface finish is the specification parameter that matters most in surgical and hygienic tube applications. Ra values, the arithmetic mean surface roughness, are the standard measure. Pharmaceutical and bioprocessing applications frequently specify Ra 0.5 µm or better for product-contact tubing surfaces. Electropolishing improves Ra values significantly below what mechanical polishing alone achieves, and also removes the surface layer where residual stresses and embedded particles from cold working accumulate, leaving a chemically passive chromium-rich surface that has better corrosion resistance than the mechanically polished base.

Weldability is important in instrument and equipment fabrication. The tubing is cut, bent, and welded into assemblies for surgical instruments, hospital equipment, laboratory systems, and pharmaceutical processing lines. Grade 304's good weldability supports those operations with standard TIG welding processes. Where post-weld corrosion resistance in the heat-affected zone is a concern, 304L (the low-carbon version, also covered by A269) is the appropriate specification, eliminating sensitization risk at weld areas that will be exposed to cleaning chemicals or process media.

Sterilization resistance covers the routine requirements of medical and food processing applications. Grade 304 surgical tubing withstands steam autoclave sterilization, chemical sterilants, and the cleaning-in-place (CIP) chemical cycles used in pharmaceutical and food equipment without significant surface degradation over many cycles.

Surgical tubes are available in seamless and welded-and-drawn forms across a range of outside diameters, wall thicknesses, and surface finishes with full material certification to ASTM A269 and applicable standards. Electropolished and bright annealed conditions available. Contact PM Industries for size, finish, quantity, and pricing.

SpecificationSS 304 Surgical Tubes | ASTM A269 | UNS S30400 | DIN 1.4301

Specifications	ASME SA 240/ASTM A 240
Standard Sizes	1000 x 2000 mm, 1220 x 2440 mm, 1500 x 3000 mm, 2000 x 2000 mm, 2000 x 4000 mm
Width	10-2500mm
Length	2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc
Surface	2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, checkered, embossed, hairline, sand, blast, Brush, etching, etc
Thickness	0.1mm to 100 mm Thk
Hardness	Quarter Hard, Half Hard,Spring Hard, Soft, Hard
Stock available in form of	Shim Sheet, Rolls, Strip, Flats, Clad Plate, Plain Sheet, Plate, Sheet, Coils, Foils, Rolling Sheet, Rolling Plate, Flat Shim, Flat Sheet, Blank (Circle), soft annealed, sheared, annealed, tread plate,descaled, Checker Plate
Profiling	Plasma Plate Cutting
Value added services	Plasma cutting, Waterjet cutting, Laser cutting, welding, edge preparation, etc.
Test Certificates	EN 10204/3.1B, NACE MR0103, NACE MR0175
	Raw Materials Certificate
	100% Radiography Test Report
	Third Party Inspection Report, etc

Available Types of ASS 304 Surgical Tubes

SS 304 Surgical Tubes – Equivalent Grades

Grade	ASTM	UNS	Werkstoff (DIN)	Common Name
SS 304	A269 TP304	S30400	1.4301	304 Stainless Steel

SS 304 Surgical Tubes – Chemical Composition

Grade	C	Cr	Ni	Mn	Si	P	S	Fe
SS 304	0.08 max	18.0 – 20.0	8.0 – 10.5	2.0 max	1.0 max	0.045 max	0.030 max	Bal

SS 304 Surgical Tubes – Mechanical Properties

Grade	Condition	Tensile Strength (MPa)	Yield Strength (MPa)	Elongation (%)	Hardness (HRB)
SS 304	Annealed	≥ 515	≥ 205	≥ 35	≤ 92 HRB