Which Steel Pipe Is Suitable for Water and Gas? A Selection Guide
Galvanized, gas, or seamless pipe? Compare standards, corrosion, pressure, and purchasing documents for drinking water, industrial water, and building gas.
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41 articles
Buying guides, market analysis and news about Pipe on Ahantime: practical articles on choosing, pricing and using this product.
Galvanized, gas, or seamless pipe? Compare standards, corrosion, pressure, and purchasing documents for drinking water, industrial water, and building gas.
Calculate the cost of purchasing project pipes using the weight formula, cutting schedule, and a multi-size example; including a weight table, delivery costs, and a ready-made inquiry text.
A guide to choosing between light and heavy pipe: how furniture, industrial, scaffolding, galvanized and Mannesmann (seamless) pipe differ in price, weight, standard and use.
Compare steel pipe prices across mills using dated data, technical criteria, shipping cost and an inquiry checklist, to choose more precisely among the mills of the Iranian market.
Is Iranian steel pipe better than imported? A real comparison of quality, mills, documents and cost using Ahantime market data, with a selection table and a buying checklist.
Compare steel pipe prices by size, outer diameter, thickness and bar weight, with a conversion table, sample market prices, the weight formula and buying tips.
Explore steel pipe pricing with sample recorded rates, a pipe-type table, key factors, a per-length calculation method, and a checklist for requesting and comparing proformas.
Get to know seamless (mannesmann) steel pipe — production method, applications, standards, Schedule, weight, the difference from welded pipe, and industrial buying tips.
A steel pipe weight table covering wall thickness, outer diameter, weight per meter, and how to calculate the total weight for a project.
A scenario-based analysis of pipe prices for 1405 using Ahantime's own baseline data, exchange rate and steel factors, market risks, differences between pipe types, and a purchasing decision guide.
A guide to choosing and buying steel pipe by application, fluid, pressure, temperature, diameter, wall thickness, production method, and standard — with a comparison table, weight formula, chart, and FAQ.
Flanges and fittings come in many types, pressure classes, and materials, often on long project lists — which makes accurate product-code entry essential.
Pipe is sold as seamless, welded, or galvanized, in various schedules and sizes — this variety makes entering the correct product code in Iran's e-invoicing system (Samaneh-ye Mo'addian) especially important.
Industrial valves come in many types, pressure classes, materials, and sizes, and carry high value — which makes correct product-code entry in Iran's e-invoicing system (Samaneh-ye Mo'addian) especially important.
Flange sealing faces come in different types (like RF and FF), and the gasket has to match both the face and the fluid. Learn this often-overlooked detail and how it affects sealing.
A "1-inch" pipe isn't exactly 25.4 mm in diameter — nominal size is an industry convention, not a pure mathematical conversion. We explain this with examples.
Industrial valves can be actuated manually, electrically, or pneumatically, and each type suits different conditions. Learn the differences and how to choose the right one.
Flange and fitting size must match the pipe's nominal size and the system's pressure class. Learn the concept of nominal size, common inch-vs-metric mistakes, and how to match them correctly.
A pipe load — especially industrial sizes and seamless pipe — carries high value, and one large purchase ties up a lot of cash. We weigh the advantages and risks of each payment method.
A valve's size must exactly match the pipe and flange's nominal size. Here's a look at the nominal size concept (DN/NPS), its relationship to actual diameter, and common matching mistakes.
Flanges and fittings are often purchased as project orders with high variety and value. Here's a look at how this affects the choice of payment method.
Pipe delivery has a few points of its own: checking wall thickness with calipers, weld seam integrity on welded pipe, and verifying the actual length of each piece — all in this checklist.
High-class industrial valves carry a high per-unit value and are often custom, project-based orders. Here's a look at how this affects the choice of payment method.
Inspecting flanges and fittings before installation involves several specific checks: matching the class and hole pattern, the wall thickness of fittings, and the condition of the sealing surface.