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by Tubotech Alloys Inc
Tubotech Alloys is a leading supplier and exporter of ASTM A194 Grade 2H Fasteners in the United Kingdom, offering premium-quality heavy hex nuts and fastening solutions designed for high-pressure and high-temperature applications. Manufactured according to ASTM specifications, these fasteners are widely used in petrochemical plants, power generation facilities, refineries, offshore platforms, and industrial piping systems.
Our ASTM A194 Grade 2H Fasteners in the United Kingdom are heat-treated carbon steel fasteners known for their excellent strength, durability, and resistance to stress under demanding operating conditions. Tubotech Alloys supplies ASTM A194 Grade 2H products in various sizes, dimensions, and finishes to meet diverse industrial requirements throughout the UK.






Tubotech Alloys offers a comprehensive range of ASTM A194 Grade 2H fastening products, including:
Available finishes include:
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.40 – 0.70 |
| Manganese (Mn) | 0.60 – 1.65 |
| Phosphorus (P) | 0.040 Max |
| Sulfur (S) | 0.050 Max |
| Silicon (Si) | 0.15 – 0.35 |
Chemical composition may vary slightly depending on manufacturing requirements and ASTM specifications.
| Property | Value |
|---|---|
| Tensile Strength | 700 MPa Min |
| Yield Strength | 415 MPa Min |
| Hardness | 24 – 35 HRC |
| Elongation | 12% Min |
| Heat Treatment | Quenched and Tempered |
The excellent mechanical properties of ASTM A194 Grade 2H fasteners in the United Kingdom make them suitable for high-pressure bolting applications where reliability and safety are critical.
| Standard | ASTM A194 / ASME SA194 |
|---|---|
| Material Grade | Grade 2H |
| Material Type | Heat-Treated Medium Carbon Steel |
| Product Type | Heavy Hex Nuts, Hex Nuts, Lock Nuts, Coupling Nuts |
| Manufacturing Process | Hot Forged, Cold Forged, Machined |
| Heat Treatment | Quenched and Tempered |
| Size Range (Imperial) | 1/4″ to 4″ |
| Size Range (Metric) | M6 to M100 |
| Thread Standards | ASME B1.1, ASME B1.13M, ISO Metric |
| Nut Standards | ASME B18.2.2, ASME B18.2.4.6M |
| Hardness | 24–35 HRC |
| Proof Load Stress | 175 ksi |
| Minimum Tempering Temperature | 850°F (455°C) |
| Surface Finish | Plain, Black Oxide, Zinc Plated, Hot Dip Galvanized, PTFE Coated, Cadmium Plated |
| Applications | Pressure Vessels, Flanges, Valves, Boilers, Heat Exchangers, Pipelines |
| Companion Bolting Material | ASTM A193 Grade B7, B16 Stud Bolts |
ASTM A194 Grade 2H fasteners are extensively used in:
Used in pipelines, pressure vessels, offshore platforms, and drilling equipment.
Suitable for reactors, processing equipment, and refinery operations.
Applied in boilers, turbines, heat exchangers, and power plant infrastructure.
Used in high-pressure piping systems and chemical processing units.
Provides dependable fastening solutions for offshore structures and marine equipment.
Ideal for structural bolting applications requiring high strength and durability.
These fittings are crucial in ensuring smooth, dependable, and ordinary fluid and gas waft at some stage in various high-stakes programs.
Tubotech Alloys has established itself as a trusted supplier of ASTM A194 Grade 2H Fasteners in the United Kingdom by consistently delivering quality products and exceptional customer service.
We source and manufacture fasteners according to strict ASTM standards to ensure superior quality.
A wide range of ASTM A194 Grade 2H fasteners is available in different sizes and specifications for immediate delivery.
We offer cost-effective fastening solutions without compromising on quality.
All products are supplied with material test certificates and quality documentation.
Efficient logistics ensure prompt delivery to customers throughout the United Kingdom.
Our experienced team provides professional guidance for selecting the right fastening solutions for your applications.
Whether you require ASTM A194 Grade 2H heavy hex nuts, industrial fastening solutions, or custom-engineered fasteners, Tubotech Alloys is your reliable partner in the UK. We are committed to supplying high-performance ASTM A194 Grade 2H fasteners that meet international quality standards and industrial requirements.
Contact Tubotech Alloys today for competitive pricing, technical support, and fast delivery of ASTM A194 Grade 2H Fasteners in the United Kingdom.
ASTM A194 Grade 2H fasteners are heat-treated carbon steel nuts designed for use with high-pressure and high-temperature bolting applications, commonly paired with ASTM A193 stud bolts.
They are widely used in oil and gas, petrochemical, power generation, marine, refinery, and chemical processing industries.
Yes, ASTM A194 Grade 2H fasteners are specifically designed to perform reliably under elevated temperatures and pressure conditions.
Common finishes include black oxide, zinc plating, hot dip galvanizing, PTFE coating, cadmium coating, and plain finish.
Tubotech Alloys offers premium quality products, certified materials, competitive pricing, technical support, and timely delivery throughout the United Kingdom.
Upgrade your assembly with Tubotech for excellence and built to closing. Contact us nowadays to get a quote or examine more about our product range.
Tubotech delivers precision-engineered tubing, fittings, and fasteners with innovative solutions and customizable options. Trusted for quality and durability, we serve industries requiring reliable, high-performance piping and instrumentation products.
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