ASTM A193 Grade B8M2 (Class 2B) Sample MTC Certificate
Access a comprehensive, professionally formatted Material Test Certificate according to EN 10204-2004: 3.1 for ASTM A193 Grade B8M2 Class 2B (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 B8M2 Class 2B MTC Certificate
This sample mill test certificate mirrors the rigorous QA documentation package standard for highly durable, strain-hardened austenitic stainless steel fasteners shipped from Ananka Fasteners Pvt Ltd.
- Full Traceability: Certified with TC No.: S94/26-XX and corresponding ASTM specifications.
- Molybdenum Enriched Chemistry: Detailed breakdowns verifying the addition of 2.00% - 3.00% Molybdenum, providing superior resistance to pitting and crevice corrosion in harsh chloride environments.
- Class 2B Specialized Strain Hardening: Verification that the material is carbide solution treated and uniquely strain-hardened to maintain a high minimum yield strength (515 MPa / 75 ksi) even in larger diameters (up to M48 or 2"), outperforming standard Class 2.
- Mechanical Properties: Comprehensive reporting of Tensile Strength (Min 655 MPa), Yield Strength (Min 515 MPa), Elongation (Min 25%), and a strictly controlled 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 B8M2 Class 2B MTC Data
Review the standard parameters and layout before downloading the full document.
TC Number
S94/26-XX
TC Date
14.10.20XX
Material Spec
ASTM A193 Grade B8M2 Class 2B UNS S31600
Bar Shape / Size
Round Bar / 30 mm
Dimensions / Item
Stud Bolt M30-3.5P x 150 mm
Quantity
40.00 NOS
Chemical Composition %
| C | Mn | P | S | Si | Cr | Ni | Mo | Fe |
|---|---|---|---|---|---|---|---|---|
| 0.050 | 1.40 | 0.025 | 0.010 | 0.55 | 16.50 | 10.50 | 2.10 | 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) | HARDNESS (HRC) |
|---|---|---|---|
| 675.00 | 535.00 | 38.00 | 28, 29, 28 |
| Min: 655 | Min: 515 | Min: 25 | 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 B8M2 Class 2B 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 B8M2 Class 2B MTC Certificate
What is the difference between B8M Class 2 and B8M2 Class 2B?
While both are strain-hardened 316 stainless steel, standard Class 2 experiences a significant drop in yield strength for diameters larger than 3/4" (dropping from 95 ksi down to 50 ksi at larger sizes). Class 2B (B8M2) is specially processed to maintain a high minimum yield strength (75 ksi / 515 MPa) uniformly for larger diameters up to 2 inches (M48), making it superior for heavy-duty structural and pressure vessel bolting.
What does "Strain Hardened" mean in this context?
After the initial carbide solution treatment (annealing), the fasteners are mechanically worked (cold drawn or rolled) at room temperature. This cold working process, known as strain hardening, drastically increases the tensile and yield strength of the austenitic stainless steel compared to its softer, annealed state (Class 1).
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.