ASTM A106 vs ASTM A53: Which Carbon Steel Pipe Should Importers Specify?
A buyer comparison of ASTM A106 seamless high-temperature pipe and ASTM A53 Type F/E/S pipe: scope, silicon, galvanizing, dual-stamp mill quotes, and RFQ wording that stops silent substitution.
EU CBAM for Steel Imports 2026: Emissions Data, Default Values, and RFQ Documents
What steel importers should freeze before an EU landing in 2026: authorised declarant status, the 50 tonne threshold, actual emissions versus default values, and mill documents that sit next to the MTC.
Q355B vs S355JR: What Carbon Steel Importers Must Freeze Before Substituting
A buyer comparison of Chinese Q355B and EN S355JR structural carbon steel: yield class, impact letters, GB/T 1591-2018 vs EN 10025-2, and RFQ wording that stops silent substitution.
FOB vs CIF for Steel Imports: Cost, Risk, and Control Compared
A steel importer's comparison of FOB and CIF under Incoterms 2020: who pays freight, who holds transit risk, what CIF insurance actually covers, and RFQ wording that keeps quotes comparable.
ERW vs LSAW vs SSAW: Choosing the Right Welded Pipe Process for Your Project
A buyer comparison of ERW, LSAW, and SSAW welded steel pipe: forming route, typical service, NDT and MTC checks, and RFQ wording that stops process substitution.
201 vs 304 Stainless Steel: Avoiding Substitution Risk When Sourcing from China
A practical importer guide to 201 vs 304 stainless steel: composition differences, corrosion and welding trade-offs, substitution red flags, and PMI/XRF plus MTC checks before you accept a China shipment.
How to Spot a Questionable Mill Test Certificate: Heat Numbers, Traceability, and Red Flags
A practical importer checklist for spotting questionable steel MTCs: heat-number mismatches, broken traceability, altered PDFs, incomplete chemistry, and EN 10204 3.1 document red flags before shipment.
Steel RFQ Template: What to Include to Get Accurate, Comparable Quotes
A practical steel RFQ template for importers: freeze grade, size, tolerance, packing, MTC, Incoterms, and ports so mill and trader offers can be compared on the same scope.
Third-Party Pre-Shipment Inspection for Steel: What the Report Covers and How to Read It
A practical importer guide to third-party steel pre-shipment inspection (PSI): what SGS/BV/Intertek-style reports cover, how to read pass/fail findings, and which MTC, dimension, and packing checks matter before loading.
Steel Angle, Channel, and H-Beam Import Guide: Sizes, Tolerances, and Standards
A practical import RFQ guide for steel angles, channels, and H-beams: section designation systems (GB, EN, ASTM, JIS), tolerance checks, kg/m traps, packing, and MTC fields that keep mill quotes comparable.
How to Specify PPGI: Zinc Coating, Paint System, and RAL Color Without Mistakes
A practical PPGI RFQ checklist for importers: zinc mass on the galvanized substrate, PE/SMP/HDP/PVDF paint systems, top and reverse film build, RAL color, gloss, and MTC fields that keep mill quotes comparable.
S235JR, Q235B, and GOST St3sp: Structural Grade Cross-Reference for CIS Buyers
A practical cross-reference for CIS and international buyers matching S235JR, Chinese Q235B, and GOST St3sp-style drawings: yield bands, impact tests, MTC checks, and RFQ fields that stop false equivalence claims.