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Introduction
ASTM A269
covers seamless and welded austenitic stainless steel tubing intended for
general corrosion-resistant and low to moderate temperature service. These
tubes are widely known for their excellent corrosion resistance, smooth surface
finish, and superior mechanical properties.
ASTM A269
stainless steel tubes are extensively used in industries where hygiene,
corrosion resistance, and durability are essential.
Ladhani
Metal Corporation is a manufacturer, supplier, and exporter of ASTM A269
stainless steel tubes, supplying high-quality seamless and welded tubing for
critical industrial applications.
Applicable Standard
Standard
Specification: ASTM A269
Organization: ASTM International
Title: Standard Specification for Seamless and Welded Austenitic Stainless
Steel Tubing for General Service
This
specification covers stainless steel tubing for general service applications
requiring corrosion resistance and strength.
Forms of Supply
ASTM A269
stainless steel tubes are supplied in the following forms:
Seamless
tubes
Welded tubes
Cold drawn tubes
U-bend tubes
Cut-to-length tubes
Supply
Condition
Solution
annealed
Heat-treated condition
Pickled and passivated
Surface
Finish
Annealed and
pickled
Bright annealed
Polished (if required)
Standard
Sizes
Outside
Diameter: 6 mm to 101.6 mm
Wall Thickness: 0.5 mm to 8 mm
Length: Up to 12 meters or as required
Grades Covered Under ASTM A269
TP304
TP304L
TP316
TP316L
TP321
TP347
These grades
are austenitic stainless steels known for excellent corrosion resistance and
formability.
Chemical Composition of ASTM A269 Stainless Steel
Tubes (%)
|
Grade |
C Max |
Mn Max |
P Max |
S Max |
Si Max |
Cr (%) |
Ni (%) |
Mo (%) |
N (%) |
Other Elements |
|
TP304 |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
18.0–20.0 |
8.0–11.0 |
— |
— |
— |
|
TP304L |
0.035 |
2.00 |
0.045 |
0.030 |
1.00 |
18.0–20.0 |
8.0–13.0 |
— |
— |
— |
|
TP304LN |
0.035 |
2.00 |
0.045 |
0.030 |
1.00 |
18.0–20.0 |
8.0–11.0 |
— |
0.10–0.16 |
— |
|
TP316 |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
16.0–18.0 |
10.0–14.0 |
2.00–3.00 |
— |
— |
|
TP316L |
0.035 |
2.00 |
0.045 |
0.030 |
1.00 |
16.0–18.0 |
10.0–15.0 |
2.00–3.00 |
— |
— |
|
TP316LN |
0.035 |
2.00 |
0.045 |
0.030 |
1.00 |
16.0–18.0 |
10.0–13.0 |
— |
0.10–0.16 |
— |
|
TP317 |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
18.0–20.0 |
11.0–15.0 |
3.0–4.0 |
— |
— |
|
TP321 |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
17.0–19.0 |
9.0–12.0 |
— |
— |
Ti Stabilized |
|
TP347 |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
17.0–19.0 |
9.0–13.0 |
— |
— |
Nb Stabilized |
|
TP348 |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
17.0–19.0 |
9.0–12.0 |
— |
— |
Nb+Ta (C ≤ 0.20) |
|
S31254 |
0.020 |
2.00 |
0.045 |
0.035 |
1.00 |
19.5–20.5 |
17.5–18.5 |
6.0–6.5 |
0.18–0.22 |
Cu: 0.50–1.50 |
ASTM A269 Stainless Steel Tubes – Tensile
Requirements
|
Grade |
Tensile
Strength Min (ksi) |
Tensile
Strength Min (MPa) |
Yield
Strength Min (ksi) |
Yield
Strength Min (MPa) |
Other |
|
TP304 |
75 |
515 |
30 |
205 |
— |
|
TP304L |
70 |
485 |
25 |
170 |
— |
|
TP316 |
75 |
515 |
30 |
205 |
— |
|
TP316L |
70 |
485 |
25 |
170 |
— |
|
TP317 |
75 |
515 |
30 |
205 |
— |
|
TP321 |
75 |
515 |
30 |
205 |
Welded & Seamless |
|
TP347 |
75 |
515 |
30 |
205 |
— |
|
TP347H |
75 |
515 |
30 |
205 |
— |
Key Features of ASTM A269 Stainless Steel Tubes
Excellent
corrosion resistance
Smooth surface finish suitable for hygienic applications
High strength and durability
Good weldability and formability
Resistance to oxidation and scaling
Suitable for low and moderate temperature service
Long service life with minimal maintenance
Applications of ASTM A269 Stainless Steel Tubes
ASTM A269 tubes
are widely used in industries requiring corrosion resistance and clean surface
finish.
Chemical
& Petrochemical Industry
• Process tubing
• Instrumentation lines
Food &
Pharmaceutical Industry
• Hygienic tubing
• Sanitary process lines
Heat
Exchangers
• Condenser tubes
• Heat transfer systems
Oil &
Gas Industry
• General service piping
• Instrumentation tubing
Heat Treatment
Tubes are
solution annealed to improve corrosion resistance
Heat treatment removes residual stresses
Ensures uniform microstructure and enhanced performance
Conclusion
ASTM A269
stainless steel tubes offer a reliable and versatile solution for general
service applications requiring corrosion resistance, strength, and clean
surface finish. These tubes are ideal for industries such as chemical
processing, food, pharmaceutical, and oil & gas.
Ladhani
Metal Corporation supplies ASTM A269 stainless steel tubes in various grades
and sizes, ensuring high-quality products for diverse industrial applications.
FOR REQUIREMENT OF THIS GRADE OR FOR DETAIL CONTACT US AT :-
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