ASTM A269 TP304 Stainless Steel Seamless Tube
ASTM A269 TP304 is an austenitic grade covering standard seamless and welded configurations. These pipes are designed with nickel, chromium, and other alloy components that provide enhanced resistance to corrosive and oxidizing media. With a density of 8 g/cm³ and melting point of 1400°C, these tubes offer excellent mechanical properties and perform reliably across various pressures and temperatures.
Product Configurations
Seamless Tubing: Produced when hot billets are passed through metal extrusion for precise shaping, offering exceptional strength and load-carrying capacity for high-temperature service.
Cold Drawn Seamless Pipe: Processed immediately after hot rolling at room temperature, featuring excellent surface finish and enhanced resistance to aggressive media.
Welded Pipe: Manufactured using standard welding procedures, providing a cost-effective alternative for low-pressure and low-temperature applications.
ERW Tube: Created when high-voltage current passes through tubes to weld them in longitudinal cross-section, customizable in various sizes without requiring filler material.
Product Specifications
Shapes & Configurations
Round, Rectangular, Square, Hydraulic, Straight, "U" Shape, Coiled, Honed Tubes, Pan Cake Coils
Manufacturing Types
Seamless / ERW / Welded / Fabricated / CDW / CDS / DOM / CEW / 100% X Ray Welded
Delivery Conditions
Annealed and Pickled (AP), Polished, Bright Annealed (BA), Cold Drawn, MF
Surface Finishes
BA, 2B, No.4, No.1, No.3, No.8, 8K, HL, 2D, 1D, Mirror Polished, 180G, 320G, 400G Satin/Hairline, 400G, 500G, 600G or 800G Mirror finish, or custom finishes per customer specification
Thickness Range
SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXH, SCH XXS, SCH XS
Standards Compliance
SUS, JIS, AISI, ASTM, GB, DIN, EN including ASTM A213, A312, A269, A778, A554, A249, A270, A789, DIN 17456, DIN17457, DIN 17459, JIS G3459, JIS G3463, GOST9941, EN10216, BS3605, GB13296
Value Added Services
- Cutting
- Beveling
- Threading
- Polishing (Electro & Commercial)
- Draw & Expansion as per required Size & Length
- Destructive and Non Destructive Testing
- Ultrasonic Testing
- Annealed & Pickled Bending
SWG & BWG
10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg.
End Types
Plain End, Beveled End, Threaded
Processing Services
Bending, Welding, Decoiling, Punching, Cutting, Moulding
Manufacturing Techniques
Cold drawn, Cold rolled, Hot rolled, Extrusion Tube
Test Certificates
- DFARS compliant
- EN 10204/3.1B, EN 10204 3.1 and EN 10204 3.2 Material Test Certificates (MTC)
- 100% Radiography Test Report
- Raw Materials Certificate
- Third Party Inspection Report
- Fumigation Certificates
- Heat Treatment Charts
- HS Code Commercial Invoice
- Form A for Generalized System of Preferences (GSP)
- Manufacturer Test Certificate
- Moisture testing
- Surface roughness measurement
- Laboratory Test Certificate from Govt. Approved Lab
Packing
Ends Capped, Sleeved, Wooden Boxed
Applications
- Common industrial services (Petroleum, chemical, paper, fertilizer, fabric, aviation and nuclear)
- Fluid, gas and oil industry
- Heat transmission and pressure service
- Construction and ornamental
- Boilers and Heat exchangers
- Decoration purpose, boiler, auto parts, medical device, food industry, building materials
Mechanical Properties
| SS GRADE |
HEAT TREATMENT |
TEMPERATURE F (C) MINIMUM |
HARDNESS BRINELL |
HARDNESS ROCKWELL |
| TP304 |
Solution |
1900 (1040) |
192HBW/ 200HV |
90HRB |
| TP304L |
Solution |
1900 (1040) |
192HBW/ 200HV |
90HRB |
| TP316 |
Solution |
1900(1040) |
192HBW/ 200HV |
90HRB |
| TP316L |
Solution |
1900(1040) |
192HBW/ 200HV |
90HRB |
| TP321 |
Solution |
1900(1040) F |
192HBW/ 200HV |
90HRB |
| TP347 |
Solution |
1900(1040) |
192HBW/ 200HV |
90HRB |
Chemical Composition
| SS GRADE |
C |
MN |
P |
S |
SI |
CR |
NI |
MO |
N B |
NB |
TI |
| 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 |
8.0-12.0 |
--- |
--- |
--- |
--- |
| 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 D |
2.00 |
0.045 |
0.030 |
1.00 |
16.0-18.0 |
10.0-15.0 |
2.00-3.00 |
--- |
--- |
--- |
| TP321 |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
17.0-19.0 |
9.0-12.0 |
--- |
--- |
--- |
5C -0.70 |
| TP347 |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
17.0-19.0 |
9.0-12.0 |
|
|
10C -1.10 |
--- |
Tolerance Specifications
| OD, INCH |
OD TOLERANCE INCH(MM) |
WT TOLERANCE % |
LENGTH TOLERANCE INCH(MM) |
| ≤1 /2 |
± 0.005 ( 0.13 ) |
±15 |
1 /8 ( 3.2 ) |
| > 1 /2~1 1 /2 |
±0.005(0.13) |
±10 |
1 /8(3.2) |
| > 1 1 /2~< 3 1 /2 |
± 0.010(0.25) |
±10 |
3 /16(4.8) |
| > 3 1 /2~< 5 1 /2 |
± 0.015(0.38) |
±10 |
3 /16(4.8) |
| > 5 1 /2~< 8 |
± 0.030(0.76) |
±10 |
3 /16(4.8) |
| 8~< 12 |
± 0.040(1.01) |
±10 |
3 /16(4.8) |
| 12~< 14 |
± 0.050(1.26) |
±10 |
3 /16(4.8) |
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