Delivery Status of Corrosion-Resistant, Heat-Resistant and Heat-Strength Steel Bars and Cold-Worked Material per GOCT 5949-1975
In modern manufacturing, corrosion-resistant, heat-resistant, and heat-strength steel bars and cold-worked materials are essential for a range of processes. Standard GOCT 5949-1975 outlines the delivery status requirements for these materials in order to ensure quality and efficiency in the manufacturing process.
This standard covers metal bars and cold-worked materials in a range of shapes and sizes. It defines the tolerances for dimensions and surface quality and outlines the methods for measurement. This standard applies to steels in grades 10-30, alloyed constructional steels, and steels with elevated hardening. The standard also outlines requirements for testing, packaging, and marking. The delivery status of the products is set out in accordance with the classification system defined in GOST 8239-80.
Deliveries are separated into four categories, based on the level of processing completed. The higher the degree of machining and other processing, the higher the delivery status. The categories are as follows.
1.Hot-rolled material is delivered in its original form with limited machining completed. Bundles of steel rods are strapped, with bundles of different sizes strapped separately. Each bundle should be marked with the nominal size and number of bars.
2.Cold-worked material is somewhat more processed than hot-rolled material, with indentations for threading, plus limited machining and rounding completed. Each bundle of bars should be marked with the nominal size, type of processing, and number of bars.
3.Ready-for-installation material is delivered in a much more complete form, with heat treatment and full machining and rounding completed. Each bundle should be marked with the nominal size, type of processing, and number of bars, noting that it is ready for installation.
4.Given-shape material is even more processed than ready-for-installation material, with additional forming and machining completed to create the finished shape. This material is delivered in bundles, with each bundle marked with the nominal size, type of processing, and number of finished shapes.
Under this standard, all materials should be delivered under clear, dry conditions and stored in accordance with GOCT 5254-81. All materials should be inspected prior to delivery, with a certificate of quality available on request.
GOCT 5949-1975 sets out clear guidelines for the delivery of corrosion-resistant, heat-resistant, and heat-strength steel bars and cold-worked materials. This standard provides a set of consistent requirements, ensuring quality and efficiency in the manufacturing process.
