In the high-pressure and punishing environments of oil and gas applications, Diamond Chain provides unsurpassed efficiency, durability, and performance. Our corrosion-resistant chain, oil field roller chain, and made-to-order chain products give you the reliability and performance you need to increase efficiency and decrease downtime. Designed to meet or exceed API 7F8 standards and produce products in line with ANSI chain standards, no other chain will outlast a Diamond.