ASTMA194/A563 Carbon Steel Heavy Duty Nuts

ASTM A194/A563 Carbon Steel Heavy Duty Nuts – High-Strength Fastening Solutions

ASTM A194/A563 Carbon Steel Heavy Duty Nuts are high-strength fasteners designed for extreme working conditions, in compliance with international standards ASTM A194 (high temperature/high pressure applications) and ASTM A563 (general heavy nut standard). Made of high-quality carbon steel, they have excellent mechanical properties, corrosion resistance and durability, and are widely used in the oil, gas, power, construction and heavy machinery industries.

Core Advantages
1. Ultra-high strength and durability
Material grades cover Grade 2H, Grade DH, and Grade C to meet different load requirements.
Tensile strength of ≥120 ksi ensures long-term stable operation under high pressure and vibration environments.

2. Strict international standard certification
Complies with ASTM A194/A563 and ASME B18.2.2 standards, compatible with A325/A490 bolts, and provides reliable matching solutions.

3. Excellent corrosion resistance
Optional hot-dip galvanized, Dacromet or phosphating treatment, suitable for humid and chemically corrosive environments.

4. Wide range of application scenarios
Oil & Gas: wellhead equipment, pipeline flange connection.
Power engineering: substation steel structure, wind power tower.
Heavy machinery: high stress parts of mining equipment and construction machinery.

FAQ
Q1: Can ASTM A194 Grade 2H and ASTM A563 Grade DH be used interchangeably?
A: ASTM A194 Grade 2H can replace ASTM A563 Grade DH, especially when certain sizes and coatings are not available. However, ASTM A563 Grade DH cannot completely replace ASTM A194 Grade 2H, because the latter has undergone more rigorous heat treatment and testing and is suitable for high temperature environments.

Q2: Is the product customizable?
A: Yes, we provide customized services, including size, coating, surface treatment, etc. to meet your special needs.

Q3: Does the product support bulk purchase?
A: Yes, we support large package delivery, please contact us for the specific minimum order quantity and delivery cycle.