ASTM A194 GRADE B8ML4CuN NUTS
ASTM A194 Grade B8ML4CuN Nuts Sample MTC Certificate
Access a professional Material Test Certificate (EN 10204 3.1) for high-performance 6% Moly Super Austenitic Grade B8ML4CuN (UNS S31254). Engineered for extreme offshore and corrosive chemical environments.
ISO 9001-2015
EN 10204 3.1
ASTM A194
UNS S31254
Overview: Grade B8ML4CuN Documentation
This certificate represents the rigorous quality control for high-alloy, super-austenitic stainless steel fasteners, essential for preventing chloride-induced stress corrosion in subsea and chemical processing hardware.
- Traceability: Full traceability verified by heat lot and serial coding (TC No.: S98/26-XX).
- 6% Moly Chemistry: High-alloy matrix (Cr~20%, Ni~18%, Mo~6%) providing a PREn > 42, ensuring supreme pitting resistance.
- Mechanical Integrity: Tested for high-load durability, specifically matching structural yield requirements for high-pressure valve and flange systems.
- Corrosion Defiance: High Nitrogen and Copper levels offer added resilience against acidic chloride breakdown and crevice corrosion.
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Note: Representative sample. Actual MTCs are heat-specific.
Live Preview: Technical Data
TC Number
S98/26-XX
TC Date
23.06.20XX
Material Spec
ASTM A194 Grade B8ML4CuN
Shape / Size
Heavy Hex Nut / M24
Quantity
250.00 NOS
Chemical Composition %
| C | Mn | P | S | Si | Cr | Ni | Mo | Cu | N |
|---|---|---|---|---|---|---|---|---|---|
| 0.018 | 0.60 | 0.025 | 0.005 | 0.40 | 20.00 | 18.00 | 6.10 | 0.75 | 0.20 |
Mechanical Properties
| Tensile (MPa) | Yield (MPa) | Elongation (%) | Hardness (HRC) |
|---|---|---|---|
| 700 | 450 | 35 | 24, 25, 24 |
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View Datasheet: ASTM A194 Grade B8ML4CuN Datasheet →