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133 articles
Buying guides, market analysis and steel education — written for buyers who consult smartly, then buy.
Flange class determines the allowable pressure and bolt-hole pattern. Connecting a Class ۱۵۰ flange to a Class ۳۰۰ system is a high-risk mistake. Let’s become familiar with this concept.
The weight of each meter of steel pipe is obtained from a simple formula. We review this formula, the weight table for several commonly used sizes, and the method for checking cargo weight.
Rebar is bought and sold by weight. In this article, you will read about the weight calculation formula, the table of commonly used sizes, and a checklist for weighing the load upon delivery.
Wire and coils are supplied in plain, ribbed, and galvanized types, and in both coil and cut-length forms, each with its own application. Let’s learn about the selection guide for sales.
Each type of industrial valve is designed for a specific task; ball valves are for fast shutoff and opening, gate valves for low pressure drop, butterfly valves for light weight, and check valves for preventing backflow.
The weight of each steel sheet can be calculated precisely: length×width×thickness×۷.۸۵. We will learn the formula, the weight table for standard dimensions, and how to control cargo weight upon delivery.
Angles are supplied in two types, equal-leg and unequal-leg, while channels are available in different standards. Let’s become familiar with the differences and what each one is suitable for.
The density of ۳۰۴ stainless steel is about ۸.۰, slightly higher than carbon steel at ۷.۸۵; this small difference becomes important in high-value stainless steel transactions. We will explore the formula and weight table.
A rebar coupler must withstand at least ۱.۲۵ times the rebar’s yield stress. A counterfeit coupler that fails to reach this figure poses a serious structural risk.
In galvanized profiles, a shiny, mirror-like appearance, contrary to common perception, is not a sign of good quality. We examine the difference between genuine hot-dip galvanizing and weak cold galvanizing.
By knowing the density of each non-ferrous metal, you can both estimate the weight of a piece and assess its purity without a laboratory. Let’s become familiar with the density table and the method.
Steel beams, like rebar, are traded by weight, but each piece is worth more. Using the weight table for common sizes, find a bundle discrepancy in a few minutes.
