ASTM A194 GRADE 1 NUTS
ASTM A194 Grade 1 Nuts Sample MTC Certificate
Access a comprehensive, professionally formatted Material Test Certificate according to EN 10204-2004: 3.1 for Carbon Steel Heavy Hex Nuts (ASTM A194 Grade 1). Inspect the exact documentation your QA and engineering teams will receive with every Ananka Fasteners order.
What's Inside This A194 Gr 1 MTC Certificate
This sample mill test certificate mirrors the rigorous QA documentation package standard for reliable carbon steel nuts meant for moderate-temperature and standard piping service shipped from Ananka Fasteners Pvt Ltd.
- Full Traceability: Certified with TC No.: C84/26-XX and corresponding ASTM specifications.
- Material Chemistry: Detailed carbon steel breakdowns verifying the minimum Carbon limit (0.15% min) required to meet the necessary structural integrity for standard industrial applications.
- Mechanical & Proof Load Testing: Comprehensive reporting of critical fastener metrics, validating the nut's Proof Load capability (typically ~130,000 psi) to ensure it resists thread stripping under operational stress.
- Hardness Verification: Explicit tracking of Brinell Hardness (min 120 HBW) confirming the material's strength profile matches specification requirements.
- Quality Compliance: 100% visual and dimensional inspection carried out to guarantee perfectly formed threads and flat bearing surfaces in accordance with ASME standards.
Live Preview: ASTM A194 Grade 1 Data
Review the standard parameters and layout before downloading the full document.
TC Number
C84/26-XX
TC Date
15.08.20XX
Material Spec
ASTM A194 GRADE 1
Nut Shape / Size
Heavy Hex Nut / M20
Dimensions / Item
Heavy Hex Nut M20-2.5P
Quantity
350.00 NOS
Chemical Composition %
| C | Mn | P | S | Si |
|---|---|---|---|---|
| 0.22 | 0.65 | 0.025 | 0.020 | 0.18 |
| Min: 0.15 | -- | Max: 0.050 | Max: 0.050 | -- |
Mechanical Properties
| PROOF LOAD STRESS (MPa) | HARDNESS (HBW) |
|---|---|
| 920.40 | 145, 148, 142 |
| Min: 896 | Min: 120 Max: 302 |
Standard References & Compliance
Our MTC certificates map to the demanding industrial standards for pipeline and structural fasteners. The test reports confirm compliance with As Per ASME/ASTM A194 Grade 1 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 performed. |
| Dimensional Accuracy | All dimensions, threads, and bearing surface tolerances conform to ASME B18.2.2. |
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
Manufacturing Process
- Hot Forged / Cold Punched
- Stress Relieved (if applicable per lot)
Testing Conditions
- Proof load & hardness testing carried at room temperature 25°C
- 100% visual inspection carried out
Technical FAQs — ASTM A194 Grade 1 MTC Certificate
How does Grade 1 differ from Grade 2H?
While both are carbon steel nuts within the ASTM A194 specification, Grade 1 is intended for moderate temperature and pressure services and has lower hardness/proof load requirements. It is typically not subjected to the intense quenching and tempering process required for the high-strength Grade 2H.
What heat treatment methodology is tracked for Grade 1?
Grade 1 nuts are generally hot-forged or cold-punched and do not require the rigorous liquid quench and high-temperature temper applied to higher grades. The MTC reflects the standard as-formed or stress-relieved condition that meets the required 120 HBW minimum hardness.
Why does the certificate highlight Proof Load rather than Tensile Strength?
Nuts are internally threaded fasteners, meaning their primary failure mode is thread stripping rather than breaking like a bolt. Therefore, standard compliance focuses on Proof Load Stress—the specific axial load the nut can support without experiencing permanent thread deformation.