Grade 30

Grade 30 chain, also known as proof coil chain, is a common type of low-grade carbon steel chain that is widely used in various applications. Here are some characteristics of grade 30 chain:
Material Composition: Grade 30 chain is typically made from low-carbon steel, which provides adequate strength and durability for general-purpose applications. The exact chemical composition may vary slightly depending on the manufacturer.
Strength: Grade 30 chain has a working load limit (WLL) or maximum load capacity that corresponds to its size and diameter. The strength of grade 30 chain is lower compared to higher-grade chains, such as grade 70 or grade 80 chains. It is important to ensure that the chain is not overloaded beyond its rated capacity to maintain safety.
Finish: Grade 30 chain is commonly available in a bright or self-colored finish, which means it does not have any additional protective coating or galvanization. This makes it more susceptible to corrosion and requires regular maintenance to prevent rusting.
Versatility: Grade 30 chain is versatile and can be used in various applications, including general lifting, towing, and securing loads. It is often used in agriculture, construction, and general utility purposes.
Cost-Effective: Grade 30 chain is generally more affordable compared to higher-grade chains, making it a cost-effective option for applications that do not require extremely high strength or corrosion resistance.
Weldability: Grade 30 chain can be welded using appropriate welding techniques. However, it is important to follow welding guidelines and ensure proper welding procedures to maintain the chain's strength and integrity.
It is essential to note that the specifications and characteristics of grade 30 chain can vary depending on the standards and regulations of different regions or industries. It is recommended to refer to the manufacturer's specifications and guidelines for specific information regarding grade 30 chain.