S31254 / 1.4547 Stainless Steel Sanitary Tube Supplier in China
Engineered for the most demanding hygienic applications, our S31254 sanitary tubes combine the superior corrosion resistance of 6Mo super austenitic steel with an ultra-smooth, crevice-free internal finish. They provide the ultimate protection against aggressive process fluids and cleaning agents in critical biopharmaceutical and food processing systems.
S31254 / 1.4547 Sanitary Tube - Detailed Specifications
| Specification Parameter | Details |
|---|---|
| Product Name | S31254 / 1.4547 Stainless Steel Sanitary Tube |
| Governing Standard | ASTM A270 (Standard Specification for Seamless and Welded Austenitic and Ferritic/Austenitic Stainless Steel Sanitary Tubing) |
| Raw Material Standard | ASTM A240 / ASME SA-240 |
| International Grades | UNS: S31254, EN: 1.4547, Common Name: 6Mo |
| Outer Diameter (OD) | 1/2 to 4" (12.7mm to 101.6mm)" |
| Length | 20 ft (6.1 meters), or custom lengths |
| Surface Finish Options | SF1: Mechanically Polished ID/OD (<20 µ-in / 0.5 µm Ra ID) |
| SF4: Electropolished ID / Mechanically Polished OD (<15 µ-in / 0.38 µm Ra ID) | |
| Key Features | Exceptional resistance to pitting in chloride media. Crevice-free, hygienic design. Full compliance with 3-A, ASME BPE standards. Excellent cleanability for CIP/SIP. |
| Testing & Inspection | NDT (Eddy Current), Mechanical Tests (Flattening, Reverse Bend), Surface Roughness Test, PMI, Chemical Analysis |
Understanding ASTM A240 & ASTM A270
What It Is:
This product is governed by a powerful combination of standards to ensure both material integrity and hygienic performance.
ASTM A240: Defines the precise chemical composition and mechanical properties of the S31254 super austenitic plate, guaranteeing its superior corrosion resistance.
ASTM A270: The critical standard for sanitary tubing. It dictates the required surface finishes (Ra values), cleanliness, welding process, and inspection methods to ensure a hygienic, contamination-free product.
A Dual Guarantee: We use A240-compliant material to create a tube that meets or exceeds all A270 requirements, delivering unparalleled quality.
Why It Is Your Core Focus:
Our unwavering adherence to both standards is our promise of total system integrity and product purity for your most sensitive processes.
This ensures ultimate protection against corrosion from high-chloride solutions, brines, or aggressive cleaning agents where 316L would fail.
It guarantees an ultra-smooth, crevice-free surface that prevents microbial growth and ensures effective Clean-in-Place (CIP) and Sterilize-in-Place (SIP).
This dual certification provides you with a fully compliant, traceable tube and MTCs, simplifying validation for pharmaceutical and food-grade applications.
S31254 / 1.4547 Stainless Steel Material Properties
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.020 |
| Chromium (Cr) | 19.5 - 20.5 |
| Nickel (Ni) | 17.5 - 18.5 |
| Molybdenum (Mo) | 6.0 - 6.5 |
| Nitrogen (N) | 0.18 - 0.22 |
| Copper (Cu) | 0.50 - 1.00 |
| Manganese (Mn) | 1.00 |
| Silicon (Si) | 0.80 |
| Property | Value (Minimum) |
|---|---|
| Tensile Strength | 87 ksi (600 MPa) |
| Yield Strength (0.2% Offset) | 44 ksi (300 MPa) |
| Elongation in 2 (50mm)" | 35% |
| Hardness | 96 HRB (Maximum) |
Versatile Applications of S31254 / 1.4547 Sanitary Tube
our latest news
Get a Quote for Your S31254 / 1.4547 Sanitary Tube
When 316L isn’t enough, our S31254 / 1.4547 sanitary tube is the answer. It combines elite corrosion resistance with a high-purity finish to protect your most sensitive processes. Ensure product purity and eliminate downtime from corrosion failure. Contact our specialists today for a technical consultation and quote.
