ASTM A563 / A563M
ASTM A563 Grade DH (A563M Class 10S) Sample MTC Certificate
Access a comprehensive, professionally formatted Material Test Certificate according to EN 10204-2004: 3.1 for ASTM A563 Grade DH (Metric A563M Class 10S). Inspect the exact documentation your QA and engineering teams will receive with every high-strength structural carbon steel nut order.
What's Inside This Grade DH MTC Certificate
This sample mill test certificate mirrors the rigorous QA documentation package standard for heavy hex, high-strength structural carbon steel nuts shipped from our facilities.
- Full Traceability: Certified with TC No.: C88/26-XX and corresponding ASTM A563 / A563M specifications.
- Medium Carbon Chemistry: Detailed breakdowns verifying the Carbon (0.20–0.55%) and Manganese (Min 0.60%) required to guarantee the deep hardenability needed for high-strength bolting applications.
- Verified Heat Treatment: Explicit documentation of the Quenched and Tempered process. The nuts are heat-treated to safely achieve the hardness and proof load matching A325 and A490 structural bolts.
- Mechanical Properties: Comprehensive reporting of Proof Load Stress (1205 MPa / ~175 ksi) and Hardness (24–38 HRC) per strict ASTM A563 Grade DH / A563M Class 10S limits for heavy hex dimensions.
- Quality Compliance: 100% visual inspection carried out and verified free from defects and radioactive contamination.
Live Preview: ASTM A563 Grade DH MTC Data
Review the standard parameters and layout before downloading the full document.
TC Number
C88/26-XX
TC Date
28.09.20XX
Material Spec
ASTM A563 Grade DH (A563M 10S)-2023
Bar Shape / Size
Heavy Hex Nut / 1" (M24)
Dimensions / Item
Heavy Hex Nut 1"-8 UNC
Quantity
4500 NOS
Chemical Composition %
| C | Mn | P | S | Si | Fe |
|---|---|---|---|---|---|
| 0.38 | 0.85 | 0.015 | 0.012 | 0.25 | Rem |
| Min: 0.20 Max: 0.55 |
Min: 0.60 | Max: 0.040 | Max: 0.050 | Report | Rem |
Mechanical Properties
| PROOF LOAD STRESS (MPa) | HARDNESS (HRC) |
|---|---|
| 1250.00 | 31, 30, 32 |
| Min: 1205 (Heavy Hex) | Min: 24 Max: 38 |
Standard References & Compliance
Our MTC certificates map to the demanding industrial standards for structural fasteners. The test reports confirm compliance with As Per ASME/ASTM A563 Grade DH / A563M Class 10S EDT. 2023 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
- Quenched and Tempered
- Tempered to achieve required Proof Load
Testing Conditions
- Chemical, Mechanical & hardness test carried at room temperature 25°C
- 100% visual inspection carried out
Technical FAQs — ASTM A563 Grade DH MTC
What does "Grade DH" signify in ASTM A563?
Grade DH is the highest strength carbon steel nut in the A563 specification. It is specifically designed to be paired with high-strength structural bolts like ASTM A325 (Type 1) and ASTM A490, providing a proof load strong enough to guarantee the bolt will break in tension before the nut strips.
What is the relationship between A563 and A563M?
ASTM A563 is the imperial (inch) standard, while A563M is the metric equivalent. Grade DH in the imperial system is generally equivalent to Class 10S in the metric system, with both representing heavy hex nuts designed for demanding structural bolting joints.
Are these nuts heat treated?
Yes. Grade DH (and Class 10S) nuts are manufactured from medium-carbon steel and are typically quenched and tempered to achieve their required high hardness (24-38 HRC) and substantial proof load capabilities safely.