Stainless Steel 316 bright Annealed Tubes Supplier

Stainless Steel 316 bright Annealed Tubes Supplier

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316 Stainless Steel Annealing Temperature
Specification of SS 316 Bright Annealed Tubes
Chemical Composition of 316 SS Bright Annealed Tubes
Mechanical Properties of Stainless Steel 316 Bright Annealed Tubes
Dimensions Tolerance of stainless steel 316 bright annealed Tubes
SS 316 bright annealed tubes Applications
FAQ’s

Lakshya Steel is supplier of Stainless Steel 316 Bright Annealed Tubes are known for their exceptional quality and polished appearance. Made from high-grade 316 stainless steel, these tubes undergo a bright annealing process in a controlled atmosphere to achieve a smooth, mirror-like surface. This treatment enhances their resistance to corrosion and oxidation, making them ideal for use in demanding environments like marine and chemical industries. The design ensures greater strength and durability, while the bright annealed finish provides a clean, aesthetic look. These tubes are available in various sizes and specifications, making them versatile for numerous applications where both performance and appearance are crucial. The “bright annealed” term refers to a specific heat treatment process where the tubes are annealed in a controlled atmosphere to prevent oxidation and maintain a smooth, bright surface finish. This process not only enhances the tube’s appearance but also improves its corrosion resistance.

316 SS bright Annealed tubes are often used in industries like food processing, pharmaceuticals, and chemical processing, where both the material’s durability and a clean, polished finish are important. The bright annealed surface also makes the tubes easier to clean, which is crucial in hygienic environments.

316 Stainless Steel Annealing Temperature

316 Stainless Steel undergoes annealing to enhance its properties and achieve the desired finish. The annealing temperature for 316 stainless steel typically ranges between 1,000°C and 1,200°C (1,832°F to 2,192°F).

During the annealing process, the steel is heated to these temperatures in a controlled environment. This process helps relieve internal stresses, improve ductility, and enhance corrosion resistance. For bright annealed tubes, the heating is done in an oxygen-free environment to prevent oxidation and scaling, resulting in a smooth, shiny surface.

Annealing at these temperatures ensures that 316 stainless steel maintains its excellent performance characteristics, including its superior corrosion resistance and formability. This makes it ideal for a wide range of applications, from industrial uses to high-precision requirements.

Specification of SS 316 Bright Annealed Tubes

Category	Details
Standards and Specifications
Seamless Tubes	ASTM A269 ASTM A213 / ASME SA213
Welded Tubes	ASTM A269 ASTM A249 / ASME SA249
Annealing and Finish
Domestic Tubes	Bright annealed
Imported Tubes	Solution annealed and O.D. polished to a 320-grit finish

Chemical Composition of 316 SS Bright Annealed Tubes

Element	Composition (%)
Carbon (C)	0.080 max
Manganese (Mn)	2.00 max
Phosphorous (P)	0.045 max
Sulfur (S)	0.030 max
Silicon (Si)	1.00 max
Chromium (Cr)	16.0–18.0
Nickel (Ni)	10.0–14.0
Molybdenum (Mo)	2.00–3.00

Mechanical Properties of Stainless Steel 316 Bright Annealed Tubes

Property	Value
Yield Strength	30 ksi min
Tensile Strength	75 ksi min
Elongation (2″ min)	35%
Hardness (Rockwell B Scale)	90 HRB max

Dimensions Tolerance of Stainless Steel 316 Bright Annealed Tubes

Outer Diameter (OD)	OD Tolerance	Wall Tolerance
≤ 0.500”	± 0.005”	± 10%
0.500”–1.500” excl	± 0.005”	± 10%
1.500”–3.500” excl	± 0.010”	± 10%
3.500”–5.500” excl	± 0.015”	± 10%

FAQs

What are the benefits of using 316 SS Bright Annealed Tubes?

These tubes offer several benefits including superior corrosion resistance, especially in harsh environments, a polished appearance, increased durability, and construction which provides higher strength and fewer potential failure points.

What is the hardness of 316 SS annealed?

The hardness of annealed 316 stainless steel typically ranges between 70 to 90 HRB (Rockwell B scale). This hardness level reflects the steel’s balance of strength and ductility after the annealing process, which is designed to improve its machinability and corrosion resistance.

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