ASTM A193 Grade B8MA Sample MTC Certificate
Access a comprehensive, professionally formatted Material Test Certificate according to EN 10204-2004: 3.1 for ASTM A193 Grade B8MA Class 1A (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 B8MA MTC Certificate
This sample mill test certificate mirrors the rigorous QA documentation package standard for high-toughness, marine-grade austenitic stainless steel fasteners shipped from Ananka Fasteners Pvt Ltd.
- Full Traceability: Certified with TC No.: S152/26-XX and corresponding ASTM specifications.
- Molybdenum Enriched Chemistry: Detailed breakdowns verifying the classic AISI 316 composition, prominently featuring 2.00% - 3.00% Molybdenum. This provides vastly superior resistance to pitting and crevice corrosion in chloride and marine environments compared to standard 304 grades.
- Class 1A Finished Condition Treatment: Verification that the material is carbide solution treated in the finished condition. This critical process completely removes any residual stresses imparted during thread rolling or forging, ensuring an entirely homogenous, stress-free microstructure.
- Mechanical Properties: Comprehensive reporting of Tensile Strength (Min 515 MPa), Yield Strength (Min 205 MPa), Elongation (Min 30%), and a strictly controlled maximum Hardness of 90 HRB (192 HBW).
- Quality Compliance: 100% visual inspection carried out and verified free from defects and radioactive contamination.
Live Preview: ASTM A193 Grade B8MA MTC Data
Review the standard parameters and layout before downloading the full document.
TC Number
S152/26-XX
TC Date
25.03.20XX
Material Spec
ASTM A193 Grade B8MA Class 1A UNS S31600
Bar Shape / Size
Hex Bolt / M20
Dimensions / Item
Heavy Hex Bolt M20-2.5P x 100 mm
Quantity
80.00 NOS
Chemical Composition %
| C | Mn | P | S | Si | Cr | Ni | Mo | Fe |
|---|---|---|---|---|---|---|---|---|
| 0.040 | 1.50 | 0.025 | 0.010 | 0.50 | 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 (HRB) |
|---|---|---|---|
| 560.00 | 240.00 | 45.00 | 82, 84, 83 |
| Min: 515 | Min: 205 | Min: 30 | Max: 90 |
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 B8MA Class 1A 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 in Finished Condition
- 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 B8MA MTC Certificate
What is the difference between Grade B8M and Grade B8MA?
While both are manufactured from AISI 316 stainless steel, Grade B8M (Class 1) is carbide solution treated before final threading and machining, which can introduce slight localized strain hardening. Grade B8MA (Class 1A) is carbide solution treated in the finished condition (after all forming and threading). This completely removes any residual stresses and guarantees a softer, highly ductile material with a maximum hardness of 90 HRB, compared to 96 HRB for standard B8M.
Why specify "Carbide Solution Treated in the Finished Condition"?
Manufacturing steps like cold rolling threads or forging bolt heads introduce localized work-hardening and residual stresses. In highly corrosive environments containing chlorides or extreme temperatures, these stressed areas become highly susceptible to stress-corrosion cracking. Solution treating the finished bolt dissolves precipitated carbides, resets the crystal lattice, and restores uniform, maximum corrosion resistance throughout the entire fastener.
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.