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Steel sourcing & quality essays

Ongoing articles on sourcing, specs, exports, and quality.

Galvanized Steel Coil Coating Weight Guide for Roofing Buyers cover image
Sourcing Guide

Galvanized Steel Coil Coating Weight Guide for Roofing Buyers

Learn how roofing buyers compare Z275, G90, and other galvanized steel coil coating weight designations before ordering GI or PPGI roofing sheet.

How to Source Stainless Steel from China Without Specification Mistakes cover image
Sourcing Guide

How to Source Stainless Steel from China Without Specification Mistakes

Learn how stainless steel buyers can avoid grade, finish, thickness tolerance, packing, and EN 10204 3.1 MTC mistakes when sourcing from China.

How to Verify a Steel Mill Test Certificate Before Shipment cover image
Quality Control

How to Verify a Steel Mill Test Certificate Before Shipment

A practical MTC checklist for steel importers to verify heat numbers, EN 10204 3.1 certificate type, test results, and shipment traceability before release.

Seamless vs Welded Steel Pipe: Inspection Checklist for Overseas Projects cover image
Product Comparison

Seamless vs Welded Steel Pipe: Inspection Checklist for Overseas Projects

Compare seamless and welded steel pipe for export projects, with buyer checkpoints for wall thickness, weld seam NDT, hydrostatic testing, MTC, and packing.

Steel Export Packing Guide: Rust Prevention, Bundling, and Container Loading cover image
Export & Logistics

Steel Export Packing Guide: Rust Prevention, Bundling, and Container Loading

A practical steel export packing checklist for buyers who need rust prevention, secure bundling, container loading control, and traceable MTC documents before shipment.

EN 10204 3.1 Certificate Checklist for Steel Importers cover image
Quality Control

EN 10204 3.1 Certificate Checklist for Steel Importers

Learn how to review EN 10204 3.1 mill test certificates, match heat numbers, verify test results, and reduce steel shipment quality risks.

ASTM A36 vs S235JR: Steel Grade Equivalency & Selection Guide cover image
Technical Standards

ASTM A36 vs S235JR: Steel Grade Equivalency & Selection Guide

Compare chemical composition, yield strength, and structural applications of ASTM A36 and EN 10025-2 S235JR.

Advantages of Carbon Steel Plates in Infrastructure Projects
Buying Guide

Advantages of Carbon Steel Plates in Infrastructure Projects

A technical overview of carbon steel structural performance, load bearing capacity, and welding standards in civil engineering.

How to Source Steel Products from China: A Step-by-Step Export Guide cover image
Export & Logistics

How to Source Steel Products from China: A Step-by-Step Export Guide

Learn how global buyers evaluate mills, verify standards, handle shipment inspection, and streamline steel importing.

The Comprehensive Sourcing Guide for Galvanized Steel Coils
Buying Guide

The Comprehensive Sourcing Guide for Galvanized Steel Coils

Understanding coating weight, spangle size, surface treatments, and international packaging standards for transit safety.

An Overview of Seamless vs Welded Steel Pipes
Buying Guide

An Overview of Seamless vs Welded Steel Pipes

A metallurgist explains the difference in production methods, pressure limits, structural applications, and cost factors.

304 vs 316 Stainless Steel
Buying Guide

304 vs 316 Stainless Steel

A practical comparison for export buyers choosing corrosion resistance and cost.

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