ASTM A193 Grade B8M3 (Class 2C) Sample MTC Certificate
Access a comprehensive, professionally formatted Material Test Certificate according to EN 10204-2004: 3.1 for ASTM A193 Grade B8M3 Class 2C (AISI 316 / UNS S31600). Inspect the exact documentation your QA and engineering teams will receive with every Ananka Fasteners order.
What's Inside This ASTM A193 B8M3 Class 2C MTC Certificate
This sample mill test certificate mirrors the rigorous QA documentation package standard for specialized strain-hardened, high-toughness austenitic stainless steel fasteners shipped from Ananka Fasteners Pvt Ltd.
- Full Traceability: Certified with TC No.: S97/26-XX and corresponding ASTM specifications.
- Molybdenum Enriched Chemistry: Detailed breakdowns verifying the AISI 316 base chemistry, including 2.00% - 3.00% Molybdenum for exceptional resistance to chloride-induced pitting and crevice corrosion.
- Class 2C Optimized Strain Hardening: Verification that the material is carbide solution treated and strain-hardened. Unlike standard Class 2 or Class 2B, Class 2C provides a strictly balanced profile of high yield strength with exceptional ductility (minimum 60% Reduction of Area) for critical pressure piping systems.
- Mechanical Properties: Comprehensive reporting of Tensile Strength (Min 585 MPa), Yield Strength (Min 450 MPa), Elongation (Min 30%), Reduction of Area (Min 60%), and a maximum Hardness of 35 HRC (321 HBW).
- Quality Compliance: 100% visual inspection carried out and verified free from defects and radioactive contamination.
Live Preview: ASTM A193 Grade B8M3 Class 2C MTC Data
Review the standard parameters and layout before downloading the full document.
TC Number
S97/26-XX
TC Date
22.11.20XX
Material Spec
ASTM A193 Grade B8M3 Class 2C UNS S31600
Bar Shape / Size
Hex Bolt / M36
Dimensions / Item
Heavy Hex Bolt M36-4.0P x 180 mm
Quantity
20.00 NOS
Chemical Composition %
| C | Mn | P | S | Si | Cr | Ni | Mo | Fe |
|---|---|---|---|---|---|---|---|---|
| 0.042 | 1.35 | 0.026 | 0.012 | 0.60 | 16.60 | 10.80 | 2.25 | Rem |
| Max: 0.08 | Max: 2.00 | Max: 0.045 | Max: 0.030 | Max: 1.00 | Min: 16.00 Max: 18.00 |
Min: 10.00 Max: 14.00 |
Min: 2.00 Max: 3.00 |
Rem |
Mechanical Properties
| TENSILE STRENGTH (Mpa) | YIELD STRENGTH 0.2% Offset (Mpa) | % ELONGATION (GL-50mm) | % REDUCTION OF AREA | HARDNESS (HRC) |
|---|---|---|---|---|
| 610.00 | 480.00 | 38.00 | 68.00 | 26, 27, 26 |
| Min: 585 | Min: 450 | Min: 30 | Min: 60 | Max: 35 |
Standard References & Compliance
Our MTC certificates map to the demanding industrial standards for fasteners. The test reports confirm compliance with As Per ASME/ASTM A193 Grade B8M3 Class 2C UNS S31600 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
- Carbide Solution Treated and Strain Hardened
- Quenching Medium: Water quenched
Testing Conditions
- Chemical, Mechanical & hardness test carried at room temperature 25°C
- 100% visual inspection carried out
Technical FAQs — ASTM A193 Grade B8M3 Class 2C MTC Certificate
How does Grade B8M3 (Class 2C) differ from B8M2 (Class 2B)?
While both are strain-hardened forms of 316 stainless steel, Class 2C (B8M3) sacrifices a small amount of peak yield strength (minimum 65 ksi / 450 MPa compared to Class 2B's 75 ksi) in exchange for significantly higher ductility and toughness. This is reflected on the MTC by the rigorous 60% minimum Reduction of Area requirement, ensuring the bolt can stretch and deform without sudden brittle failure under severe pressure or dynamic loads.
Why is Reduction of Area so important for this grade?
Reduction of Area is a direct measure of a material's ductility and toughness. In high-pressure bolting applications where extreme loads, vibration, or thermal expansion occur, a higher reduction of area ensures the fastener will securely "yield" and stretch uniformly across the joint rather than snapping under stress.
Are the materials verified to be free from radioactive contamination?
Yes, the MTC document strictly states that the material has been verified as free from radioactive contamination and has undergone a 100% visual inspection to ensure it is completely free from manufacturing defects before dispatch.