STAINLESS STEEL GRADE 309S (UNS S30908 / EN 1.4833)
Stainless Steel 309S Sample MTC Certificate
Access a comprehensive, professionally formatted Material Test Certificate according to EN 10204-2004: 3.1 for Stainless Steel Grade 309S (ASTM A276 UNS S30908 / EN 1.4833). Inspect the exact documentation your QA and engineering teams will receive with every Ananka Fasteners order.
What's Inside This SS 309S MTC Certificate
This sample mill test certificate mirrors the rigorous QA documentation package standard for high-temperature, oxidation-resistant austenitic stainless steel orders shipped from Ananka Fasteners Pvt Ltd.
- Full Traceability: Certified with TC No.: S88/26-XX and corresponding ASTM / EN specifications to ensure seamless part-tracking.
- High-Temperature Chemistry: Detailed breakdowns verifying the high Chromium (22.00% - 24.00%) and Nickel (12.00% - 15.00%) content, providing exceptional resistance to oxidation up to 1038°C (1900°F).
- Low Carbon Verification: Explicit verification of the restricted carbon content (0.08% max for the 'S' designation). This is critical for preventing carbide precipitation and preserving corrosion resistance during welding or continuous high-temperature service.
- Mechanical Properties: Comprehensive reporting of Tensile Strength (Min 515 MPa), Yield Strength (Min 205 MPa), Elongation (Min 40%), and Hardness (Max 95 HRB).
- Quality Compliance: 100% visual inspection carried out and verified free from defects and radioactive contamination.
Live Preview: Stainless Steel 309S MTC Data
Review the standard parameters and layout before downloading the full document.
TC Number
S88/26-XX
TC Date
12.08.20XX
Material Spec
ASTM A276 UNS S30908 / EN 1.4833
Bar Shape / Size
Round Bar / 12 mm
Dimensions / Item
Hex Head Bolt M12-1.75P x 50 mm
Quantity
500.00 NOS
Chemical Composition %
| C | Mn | P | S | Si | Cr | Ni | Fe |
|---|---|---|---|---|---|---|---|
| 0.04 | 1.65 | 0.028 | 0.008 | 0.55 | 23.10 | 13.50 | Rem |
| Max: 0.08 | Max: 2.00 | Max: 0.045 | Max: 0.030 | Max: 1.00 | Min: 22.00 Max: 24.00 |
Min: 12.00 Max: 15.00 |
Rem |
Mechanical Properties
| TENSILE STRENGTH (Mpa) | YIELD STRENGTH 0.2% Offset (Mpa) | % ELONGATION (GL-50mm) | HARDNESS (HRB) |
|---|---|---|---|
| 575.20 | 255.40 | 46.00 | 81, 80, 82 |
| Min: 515 | Min: 205 | Min: 40 | Max: 95 |
Standard References & Compliance
Our MTC certificates map to the demanding industrial standards for high-temperature fasteners. The test reports confirm compliance with As Per ASME/ASTM A276 UNS S30908 / EN 1.4833 EDT. 20XX with respect to the tests carried out.
| Standard / Requirement | Confirmation on Certificate |
|---|---|
| Visual Inspection | 100% visual inspection carried out & found free from defects. |
| Safety Requirements | Material is free from radioactive contamination. |
| Weld Repairs | No weld repair Perform. |
| Dimensional Accuracy | All Dimensions are as per PO Specification. |
Certification Details
We confirm that above mentioned Items was Manufactured, Sampled, Tested and Inspected in accordance with the subjected Customer's Purchase Order and as applicable Drawings, Material Specifications, Codes & Standards and the results of the items have been determined to meet the users' requirements.
Documentation Standard
- EN 10204-2004: 3.1 Standard
- Free from radioactive contamination
- Certified ISO 9001: 2015 Company
Heat Treatments
- Solution Annealed
- Quenching Medium: Water quenched
Testing Conditions
- Chemical, Mechanical & hardness test carried at room temperature 25°C
- 100% visual inspection carried out
Technical FAQs — Stainless Steel 309S MTC Certificate
Why is the 309S variant (UNS S30908) specified instead of standard 309?
The "S" in 309S denotes a lower maximum carbon content limit (0.08% max compared to 0.20% max in standard 309). This chemical restriction, verified in the MTC, minimizes carbide precipitation at the grain boundaries. This prevents sensitization and intergranular corrosion, making 309S highly suitable for applications involving extensive welding or prolonged heating.
How does the EN 1.4833 standard align with this certificate?
EN 1.4833 (often referenced as X12CrNi23-13) is the European equivalent to ASTM Grade 309S. Both standards demand very similar high-alloy chemistry designed for elevated temperature performance. Our MTC confirms that the chromium, nickel, and carbon levels fall perfectly within the intersecting allowances of both the ASTM A276/A479 UNS S30908 and EN 1.4833 standards.
What is the practical temperature limit for fasteners verified by this MTC?
Because of its high 23% chromium and 13.5% nickel content verified on the MTC, Stainless Steel 309S exhibits superb resistance to oxidation and scaling. It is typically rated for continuous service at temperatures up to 1038°C (1900°F) in non-fluctuating environments, making it ideal for furnace parts, boiler baffles, and exhaust system hardware.
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