Standard: ASTM, AISI, DIN, EN, GB, JIS
Technique: Hot Rolled/Cold Rolled/Galvnized
Processing Service: Welding, Punching, Cutting
Available Size Range: Click here
Get A QuoteStainless steel rectangular tubes are widely used in various industries due to their excellent corrosion resistance, durability, and aesthetic appearance.
Chemical Composition:
Typically, it contains elements like chromium (Cr), which provides corrosion resistance, nickel (Ni) for enhanced toughness and resistance to certain environments, and molybdenum (Mo) in some grades to further improve corrosion performance. The specific composition varies by grade. For example, in 304 stainless steel, it approximately contains 18% Cr and 8% Ni.
Mechanical Properties:
• Tensile strength: It determines the ability of the tube to withstand pulling forces. Different grades have different tensile strength ranges. For instance, 316 stainless steel tubes usually have a relatively high tensile strength.
• Yield strength: Indicates the stress at which the material begins to deform plastically.
• Elongation: Reflects the ductility of the material, showing how much it can stretch before fracturing.
Standard Specifications by Country:
| Country | Standard | Specification Details |
| USA | ASTM A554 | Covers dimensions, tolerances, and quality requirements for stainless steel welded tubular products. |
| Germany | DIN 17456 | Defines the technical delivery conditions for seamless stainless steel tubes. |
| China | GB/T 12770 | Specifies the requirements for welded stainless steel pipes for fluid conveyance and structural purposes. |
Popular Grades:
• 304 Stainless Steel: It is one of the most commonly used grades. It has good overall corrosion resistance and is suitable for a wide range of applications, such as kitchen equipment and architectural decoration.
• 316 Stainless Steel: With added molybdenum, it has superior corrosion resistance, especially in chloride-containing environments like coastal areas or chemical processing plants.
Popular Q&A:
Q1: Why does 316 stainless steel have better corrosion resistance than 304?
A: Because 316 contains molybdenum, which makes it more resistant to corrosion, especially in environments with high chloride content.
Q2: How do I choose the right stainless steel rectangular tube grade for outdoor use?
A: If it's in a corrosive outdoor environment like near the sea, 316 is recommended. For general outdoor areas with less severe corrosion, 304 can be sufficient.
Q3: Can stainless steel rectangular tubes be welded easily?
A: Yes, most stainless steel rectangular tubes can be welded, but proper welding techniques and filler materials need to be used to ensure good weld quality and maintain the corrosion resistance of the material.
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