304 Stainless Steel 304 Pipe Tube Steel

304 stainless steel is an austenitic stainless steel containing approximately 18% chromium and 8% nickel. Chromium plays a crucial role in forming a passive, self - healing oxide layer on the surface of the tube. This layer acts as a barrier, protecting the underlying metal from oxidation and corrosion. Nickel, on the other hand, enhances the steel's toughness and ductility. The combination of these elements gives 304 stainless - steel tubes excellent corrosion resistance in a variety of environments, including those with moisture, mild chemicals, and atmospheric exposure.

This grade of stainless steel also exhibits good formability, which means it can be easily shaped into different tube geometries through processes like bending, rolling, and flanging. It has a relatively high tensile strength, allowing it to withstand mechanical stress without deforming or breaking easily. Additionally, 304 stainless - steel tubes have good heat resistance, making them suitable for applications involving moderate - temperature conditions.

2. Manufacturing Process

The production of 304 stainless - steel tubes involves several steps. It usually starts with melting high - quality scrap or virgin stainless - steel materials in an electric arc furnace or induction furnace. After melting, the molten steel is cast into billets or slabs. These are then heated and processed through hot - rolling to form a rough - shaped tube.

For seamless 304 stainless - steel tubes, a piercing process is often used to create a hollow section from the solid billet. The pierced tube is then further rolled and drawn to achieve the desired diameter and wall thickness. Welded 304 stainless - steel tubes, on the other hand, are made by rolling a stainless - steel sheet into a tubular shape and then welding the seam using techniques like Tungsten Inert Gas (TIG) welding or Submerged Arc Welding (SAW). Each manufacturing method has its own advantages, with seamless tubes generally offering higher strength and better integrity in high - pressure applications, while welded tubes are more cost - effective for large - scale production.

Delivery condition: AP, BA, CFA, CFP
Other sizes and material available upon request

OD: 0.1mm-60mm
WT: 0.05mm- 10mm

Tolerance:
OD +/-0.05mm
ID +/-0.05mm
Other sizes, grades and special tolerance available upon request

Advantage: Sophisticated bright annealing technology makes the tube good mechanical performance,the tube can be
flared,flatten,bent freely.

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