ASTM A193 Grade B8LN & B8LNA Sample MTC Certificate
Access a comprehensive, professionally formatted Material Test Certificate according to EN 10204-2004: 3.1 for ASTM A193 Grade B8LN and B8LNA (Low-Carbon, Nitrogen-Strengthened 304 / UNS S30453). Inspect the exact documentation your QA and engineering teams will receive with every Ananka Fasteners order.
What's Inside This ASTM A193 B8LN / B8LNA MTC Certificate
This sample mill test certificate mirrors the rigorous QA documentation package standard for highly specialized, weld-friendly austenitic stainless steel fasteners shipped from Ananka Fasteners Pvt Ltd.
- Full Traceability: Certified with TC No.: S125/26-XX and corresponding ASTM specifications.
- Low-Carbon + Nitrogen Chemistry: Detailed breakdowns verifying restricted Carbon (0.030% max) to prevent carbide precipitation and sensitization during welding or high-temperature service. Because low carbon inherently reduces strength, Nitrogen (0.10% - 0.16%) is strategically added to restore and elevate the yield strength back to standard structural levels.
- Solution Treatment Verification: Confirms the material is carbide solution treated. For B8LNA (Class 1A), it specifically verifies the treatment occurred in the finished condition, ensuring optimum toughness and a stress-free microstructure.
- Mechanical Properties: Comprehensive reporting of Tensile Strength (Min 515 MPa), Yield Strength (Min 205 MPa), Elongation (Min 30%), and controlled maximum Hardness (96 HRB for B8LN, 90 HRB for B8LNA).
- Quality Compliance: 100% visual inspection carried out and verified free from defects and radioactive contamination.
Live Preview: ASTM A193 Grade B8LN & B8LNA MTC Data
Review the standard parameters and layout before downloading the full document.
TC Number
S125/26-XX
TC Date
14.08.20XX
Material Spec
ASTM A193 Grade B8LNA Class 1A UNS S30453
Bar Shape / Size
Hex Bolt / M24
Dimensions / Item
Hex Bolt M24-3.0P x 120 mm
Quantity
60.00 NOS
Chemical Composition %
| C | Mn | P | S | Si | Cr | Ni | N | Fe |
|---|---|---|---|---|---|---|---|---|
| 0.025 | 1.45 | 0.025 | 0.010 | 0.50 | 18.50 | 9.00 | 0.13 | Rem |
| Max: 0.030 | Max: 2.00 | Max: 0.045 | Max: 0.030 | Max: 1.00 | Min: 18.00 Max: 20.00 |
Min: 8.00 Max: 11.00 |
Min: 0.10 Max: 0.16 |
Rem |
Mechanical Properties
| TENSILE STRENGTH (Mpa) | YIELD STRENGTH 0.2% Offset (Mpa) | % ELONGATION (GL-50mm) | HARDNESS (HRB) |
|---|---|---|---|
| 570.00 | 245.00 | 44.00 | 84, 85, 83 |
| Min: 515 | Min: 205 | Min: 30 | Max: 90 (B8LNA) Max: 96 (B8LN) |
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 B8LN / B8LNA UNS S30453 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 for B8LNA)
- 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 B8LN & B8LNA MTC Certificate
Why use Grade B8LN instead of standard B8 (304) or B8L (304L)?
Standard B8L (304L) has a restricted carbon limit (0.030% max) to prevent carbide precipitation during welding, but this lower carbon reduces the overall tensile and yield strength. Grade B8LN solves this problem by adding Nitrogen. The nitrogen acts as an interstitial solid-solution strengthener, effectively boosting the yield strength of the low-carbon steel back up to the levels of standard B8 (304) while maintaining full weldability and resistance to sensitization.
What is the difference between Grade B8LN and B8LNA?
Grade B8LN (Class 1) is carbide solution treated before the final machining and threading processes. Grade B8LNA (Class 1A) is carbide solution treated in the finished condition. Solution treating the completely formed bolt removes any residual stresses generated during manufacturing. This guarantees maximum resistance to stress-corrosion cracking and maintains a strict 90 HRB maximum hardness limit, whereas B8LN is allowed up to 96 HRB.
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.