ERW vs LSAW vs SSAW Pipe: Manufacturing Processes Compared
The three main welded pipe processes differ in size range, seam quality, cost and typical use. Here is how ERW, LSAW and SSAW compare for a steel buyer.
Steel Knowledge
Technical guides on Chinese steel grades, international standards and product selection.
Seamless vs Welded Steel Pipe: Strength, Cost and Pressure Rating
Seamless or welded steel pipe? Compare cost, pressure rating, wall tolerance and the standards A106, A53 and API 5L, with a weight table for standard sizes.
Q235B vs A36 vs S235JR: Chinese Steel Grade Equivalents
How Chinese steel grades map to ASTM A36 and EN S235JR, with Q235B chemical and mechanical data and a practical substitution checklist for steel buyers.