ASTM A194 GRADE 8P NUTS
ASTM A194 Grade 8P Nuts Sample MTC Certificate
Access a comprehensive, professionally formatted Material Test Certificate according to EN 10204-2004: 3.1 for High-Nickel Austenitic Stainless Steel Heavy Hex Nuts (ASTM A194 Grade 8P). Inspect the exact documentation your QA and engineering teams will receive with every Ananka Fasteners order.
What's Inside This A194 Gr 8P MTC Certificate
This sample mill test certificate mirrors the rigorous QA documentation package standard for highly formable, corrosion-resistant austenitic stainless steel nuts. Grade 8P utilizes a specialized chemistry to dramatically improve cold-working performance for complex fastener manufacturing.
- Full Traceability: Certified with TC No.: S305/26-XX and corresponding ASTM specifications.
- Material Chemistry: Explicitly details the Chromium-Nickel chemistry of AISI Type 305 stainless steel. It highlights the elevated Nickel content (11-13%), which lowers the work-hardening rate and enables severe cold-heading without intermediate annealing.
- Mechanical & Proof Load Testing: Comprehensive reporting of critical fastener metrics, validating the nut's Proof Load capability (typically min 550 MPa for standard Class 1) to ensure structural integrity post-forming.
- Heat Treatment Tracking: Verifies the essential Carbide Solution Treatment (Solution Annealing) at a minimum of 1900°F (1040°C) followed by a rapid water quench to preserve maximum corrosion resistance.
- Quality Compliance: 100% visual and dimensional inspection carried out to guarantee perfectly formed threads and flat bearing surfaces in accordance with ASME B18.2.2.
Live Preview: ASTM A194 Grade 8P Data
Review the standard parameters and layout before downloading the full document.
TC Number
S305/26-XX
TC Date
10.05.20XX
Material Spec
ASTM A194 GRADE 8P (CLASS 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 | Cr | Ni |
|---|---|---|---|---|---|---|
| 0.05 | 1.45 | 0.026 | 0.012 | 0.50 | 18.20 | 11.80 |
| Max: 0.08 | Max: 2.00 | Max: 0.045 | Max: 0.030 | Max: 1.00 | Min: 17.00 Max: 19.00 |
Min: 11.00 Max: 13.00 |
Mechanical Properties
| PROOF LOAD STRESS (MPa) | HARDNESS (HBW) |
|---|---|
| 582.40 | 158, 162, 155 |
| Min: 550 | Min: 126 Max: 321 |
Standard References & Compliance
Our MTC certificates map to the demanding industrial standards for structural and highly corrosive pipeline fasteners. The test reports confirm compliance with As Per ASME/ASTM A194 Grade 8P 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
Heat Treatments
- Carbide Solution Treated (Annealed)
- Treatment Temp: Min 1900°F (1040°C)
- Quenching: Rapid Water Quench
Testing Conditions
- Proof load & hardness testing carried at room temperature 25°C
- 100% visual inspection carried out
Technical FAQs — ASTM A194 Grade 8P MTC Certificate
What is the base material for ASTM A194 Grade 8P?
Grade 8P is manufactured from AISI Type 305 Austenitic Stainless Steel. While it belongs to the same 18/8 family as standard Type 304, it features a specifically elevated Nickel content (11.00% - 13.00%), which provides distinct manufacturing advantages while retaining excellent corrosion resistance.
Why choose Grade 8P over standard Grade 8?
Grade 8 (Type 304) is prone to rapid work-hardening when cold-formed. Grade 8P uses Type 305 stainless steel; its higher nickel content significantly decreases the work-hardening rate. This allows the material to undergo severe cold-heading, deep drawing, and spinning during the nut manufacturing process without the risk of cracking or the need for costly intermediate annealing stages.
Does Grade 8P have different corrosion resistance?
The corrosion resistance of Grade 8P (Type 305) is fundamentally similar to, and in some chemical environments slightly better than, standard Grade 8 (Type 304) due to the higher nickel content. It is an excellent choice for general chemical, architectural, and marine applications where complex, cold-formed fastener geometries are required.