A270 TP304 Sanitary Tubing with Polished or Electropolished Finish
ASTM A270 TP304 Sanitary Stainless Steel Tube
Product Overview
Hygienic Austenitic Stainless Steel Tubing for High-Purity Process Systems
ASTM A270 TP304 Sanitary Stainless Steel Tube is designed for hygienic process systems where internal cleanliness, corrosion resistance and surface quality are critical. Manufactured from austenitic stainless steel, the tubing is supplied with controlled internal and external finishes to support cleanability and product purity in food, beverage, dairy, pharmaceutical and biotechnology applications.
Depending on project requirements, the tube can be mechanically polished, bright annealed or electropolished. Surface roughness can be controlled to meet specified Ra values, helping reduce product retention and supporting effective CIP (Clean-in-Place) and SIP (Sterilize-in-Place) procedures. These characteristics make ASTM A270 tubing suitable for sanitary process lines that require reliable hygiene performance.
Technical Specifications
|
Item |
Specification |
|---|---|
|
Product Name |
ASTM A270 TP304 Sanitary Stainless Steel Tube |
|
Standard |
ASTM A270 / ASME SA270 |
|
Material Grade |
TP304 / UNS S30400 |
|
Steel Type |
Austenitic Stainless Steel |
|
Manufacturing Process |
Welded or Seamless |
|
Heat Treatment |
Solution Annealed / Bright Annealed |
|
Surface Finish |
Mill Finish, Mechanical Polish, Bright Annealed, Electropolished |
|
Surface Roughness |
Customized (Ra according to project requirements) |
|
Outside Diameter |
6.35–101.6 mm |
|
Wall Thickness |
0.89–3.05 mm |
|
Length |
Standard or Custom Cut Length |
|
Inspection |
Eddy Current, Hydrostatic, PMI, Surface Inspection |
|
Certification |
EN 10204 3.1 / 3.2 |
Chemical Composition of A270 TP304 Sanitary Tubing
|
Element |
Content (%) |
|---|---|
|
Carbon |
≤0.08 |
|
Chromium |
18.0–20.0 |
|
Nickel |
8.0–11.0 |
|
Manganese |
≤2.00 |
|
Silicon |
≤1.00 |
|
Phosphorus |
≤0.045 |
|
Sulfur |
≤0.030 |
Mechanical Properties of A270 TP304 Sanitary Tubing
|
Property |
Requirement |
|---|---|
|
Tensile Strength |
≥515 MPa |
|
Yield Strength |
≥205 MPa |
|
Elongation |
≥35% |
|
Hardness |
ASTM A270 Requirement |
Product Features
- Controlled Surface Finish for Hygienic Service
Available with mechanically polished or electropolished surfaces to support high standards of cleanliness and product contact.
- Suitable for CIP & SIP Systems
The smooth internal surface helps improve cleanability during Clean-in-Place (CIP) and Sterilize-in-Place (SIP) operations.
- Excellent Corrosion Resistance
TP304 stainless steel provides reliable corrosion resistance in food processing, dairy production and purified water systems.
- Precision Dimensional Control
Consistent wall thickness, roundness and straightness facilitate orbital welding and sanitary fitting installation.
- Multiple Surface Finish Options
Mill finish, bright annealed, mechanically polished and electropolished finishes are available based on project requirements.
Technical Advantages of A270 TP304 Sanitary Tubing
-
Controlled internal surface roughness
-
Excellent weldability for orbital welding
-
Low product retention characteristics
-
Suitable for hygienic process validation
-
Consistent dimensional accuracy
-
High surface cleanliness after finishing
Typical Applications of A270 TP304 Sanitary Tubing
-
Dairy Processing
-
Beverage Production
-
Food Processing Lines
-
Pharmaceutical Manufacturing
-
Biotechnology Facilities
-
Purified Water Systems
-
Cosmetics Production
-
Brewing Equipment
-
Fermentation Systems
-
High-Purity Fluid Transfer
Equivalent Material Grades of A270 TP304
|
Standard |
Grade |
|---|---|
|
ASTM |
TP304 |
|
UNS |
S30400 |
|
EN |
1.4301 |
|
DIN |
X5CrNi18-10 |
|
JIS |
SUS304 |
|
GB/T |
06Cr19Ni10 |
Inspection & Testing of A270 TP304 Sanitary Tubing
-
Surface Roughness Measurement (Ra)
-
Eddy Current Test
-
Hydrostatic Test
-
PMI
-
Dimensional Inspection
-
Weld Seam Inspection
-
Visual Inspection
-
EN 10204 3.1 Certification
Frequently Asked Questions
- What is ASTM A270 TP304 tubing used for?
It is used in hygienic process systems including food, beverage, dairy, pharmaceutical and biotechnology industries.
- Can electropolished tubing be supplied?
Yes. Electropolished (EP) and mechanically polished (MP) finishes are available according to customer requirements.
- What surface roughness can be provided?
Internal and external Ra values can be supplied based on project specifications and application requirements.
- Is ASTM A270 suitable for orbital welding?
Yes. Precision dimensional tolerances and clean surface finishes make it well suited for orbital welding in sanitary piping systems.
Related Products
-
ASTM A270 TP304L Sanitary Tube
-
ASTM A270 TP316L Hygienic Tube
-
ASME BPE Stainless Steel Tubing
-
ASTM A269 Bright Annealed Tube
-
Sanitary Stainless Steel Fittings
-
Hygienic Tube Clamps
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.