STAINLESS STEEL GRADE 310H (UNS S31009 / EN 1.4951) – MTC
Stainless Steel 310H Sample MTC Certificate
Access a comprehensive, professionally formatted Material Test Certificate according to EN 10204-2004: 3.1 for Stainless Steel Grade 310H (ASTM A276 / A479 UNS S31009 / EN 1.4951). Inspect the exact documentation your QA and engineering teams will receive with every Ananka Fasteners order.
What's Inside This SS 310H MTC Certificate
This sample mill test certificate mirrors the rigorous QA documentation package standard for highly alloyed, heat-resistant austenitic stainless steel orders engineered for maximum creep resistance, shipped from Ananka Fasteners Pvt Ltd.
- Full Traceability: Certified with TC No.: S108/26-XX and corresponding ASTM / EN specifications to ensure seamless part-tracking.
- Extreme Temperature Chemistry: Detailed breakdowns verifying the core composition of the 310 series—high Chromium (24.00% - 26.00%) and Nickel (19.00% - 22.00%), providing unparalleled resistance to oxidation up to 1150°C (2100°F).
- High Carbon Verification (The 'H' Grade): Explicit verification of the strictly controlled elevated carbon content (0.04% - 0.10%). This is the defining characteristic of 310H, preventing structural deformation and maximizing creep resistance in high-stress, high-heat environments.
- 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 310H MTC Data
Review the standard parameters and layout before downloading the full document.
TC Number
S108/26-XX
TC Date
14.05.20XX
Material Spec
ASTM A276 / A479 UNS S31009 / EN 1.4951
Bar Shape / Size
Round Bar / 24 mm
Dimensions / Item
Hex Head Bolt M24-3.0P x 100 mm
Quantity
300.00 NOS
Chemical Composition %
| C | Mn | P | S | Si | Cr | Ni | Fe |
|---|---|---|---|---|---|---|---|
| 0.07 | 1.45 | 0.022 | 0.005 | 0.65 | 24.50 | 19.80 | Rem |
| Min: 0.04 Max: 0.10 |
Max: 2.00 | Max: 0.045 | Max: 0.030 | Max: 1.00 | Min: 24.00 Max: 26.00 |
Min: 19.00 Max: 22.00 |
Rem |
Mechanical Properties
| TENSILE STRENGTH (Mpa) | YIELD STRENGTH 0.2% Offset (Mpa) | % ELONGATION (GL-50mm) | HARDNESS (HRB) |
|---|---|---|---|
| 585.50 | 260.40 | 45.00 | 83, 85, 84 |
| Min: 515 | Min: 205 | Min: 40 | Max: 95 |
Standard References & Compliance
Our MTC certificates map to the demanding industrial standards for structural integrity in constant, extreme heat environments. The test reports confirm compliance with As Per ASME/ASTM A276 / A479 UNS S31009 / EN 1.4951 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 310H MTC Certificate
Why choose 310H over standard 310 or 310S?
The choice comes down to carbon content and mechanical loading at high temperatures. While 310S (low carbon) is excellent for weldability and preventing embrittlement, 310H enforces a minimum carbon content of 0.04% up to 0.10%. This carbon intentionally reinforces the grain boundaries of the steel, significantly increasing its resistance to high-temperature creep (deformation under mechanical stress) at temperatures above 538°C (1000°F).
How does EN 1.4951 align with this certificate?
EN 1.4951 is the specific European standard designation for heat-resisting, high-carbon 25Cr-20Ni austenitic stainless steel. It is the direct equivalent to the ASTM UNS S31009 specification. Our MTC confirms that the chemistry and mechanical properties documented satisfy the strict intersecting requirements of both global standards.
What are the primary applications for fasteners certified to 310H?
Because the MTC guarantees superior creep properties and a highly stable austenitic structure under stress, 310H fasteners are primarily utilized in severe thermal environments where mechanical loading is constant. Common applications include power generation facilities, petroleum refining fluid catalytic cracking units (FCCUs), furnace hardware, radiant tubes, and high-temperature rotary kilns.