Tubos HSS cuadrados y rectangulares: guía del comprador
How square and rectangular hollow sections are made, EN 10210 versus EN 10219, ASTM A500 versus A1085, the tolerances to inspect, galvanising rules, and what really moves HSS price.
Envío de tubería de acero a Róterdam: logística, Incoterms y plazos
A practical guide to moving steel from China to Europe via Rotterdam: realistic transit timelines, FOB vs CIF vs DAP risk transfer, container versus breakbulk choices, customs and CBAM documentation, and hinterland delivery.
CBAM a fondo: el impuesto al carbono en frontera sobre las importaciones de acero en la UE
CBAM is the EU carbon border tax on steel, definitive from 2026. This guide explains who pays, default values versus verified actuals, the embedded-emission data exporters must provide, and how to price carbon into EU steel quotations.
PED 2014/68/EU: Directiva de equipos a presión para compradores de acero
PED 2014/68/EU is the EU law for pressure equipment above 0.5 bar. This guide covers scope, categories I to IV, conformity modules, approved materials, EN 10204 3.1 MTCs, and what to specify when buying pressure steel for the EU.
EN 1090 y marcado CE para acero estructural: lo que el comprador de la UE debe saber
EN 1090 is the EU gateway for structural steel. This guide explains EN 1090-1/-2, execution classes EXC1 to EXC4, CE marking, the Declaration of Performance, and what to specify when buying structural steel for the European market.
Fórmula de Barlow para tubería de acero: presión interna, ejemplos resueltos y límites
P = 2St/D explained with yield, code-allowable and mill-test worked examples, thin-wall limits, and how to reverse it for ordering wall thickness.
Longitudes de tubería de acero explicadas: SRL, DRL, longitudes exactas y múltiples para pedidos de exportación
What random, single-random, double-random and exact lengths mean in practice, why they price differently, and how to write length into a PO.
Tabla rápida de tolerancias de espesor de pared: API 5L, ASTM, EN y GB/T 8163 comparadas
Verified wall and OD tolerance tables across the four standard families, nominal-wall vs minimum-wall logic, and how to write tolerances into a PO.
Embalaje de exportación de tubería de acero que sobrevive al océano: paquetes, biseles, óxido y registros
Container and break-bulk packing practice for carbon steel pipe: end protection, VCI and rust control, strapping, coated pipe handling and claim-proof photos.
Tubo para rodillos de banda transportadora y tubería mecánica: las dimensiones que deciden la vida del rodamiento
Why idler tube is not ordinary pipe — end-zone OD and ovality, straightness, wall uniformity, manufacturing routes and what OEMs actually specify.