Botop Steel SupplyTubus Ferreus ERWabGR.BX42, X46, GR.1, GR.2, S355J0H, S275JRH, SGP, et cetera.
| Stilus | Norma | Gradus | Usus |
| Tubus Ferreus ERW | API 5L PSL1 et PSL2 | GR.B, X42, X46, X52, X60, X65, X70, et cetera. | Transportatio olei et gasii |
| ASTM A53 | Gradus A, Gradus B | ||
| ASTM A252 | Gradus Primus, Gradus Secundus, Gradus Tertius | Pro Structura (Palisatio) | |
| BS EN10210 | S275JRH, S275J0H, S355J0H, S355J2H, et cetera. | ||
| BS EN10219 | S275JRH, S275J0H, S355J0H, S355J2H, et cetera. | ||
| JIS G3452 | SGP, etc. | Transportatio Fluidum pressionis humilis | |
| JIS G3454 | STPG370, STPG410, cetera | Transportatio Fluidum altae pressionis | |
| JIS G3456 | STPG370, STPG410, STPG480, cetera | Tubi ferrei altae temperaturae |
Beveling Extremitatis Tubi
Pictura Nigra cum Notatione
Fasciculatio et Funda
Inspectio Diametri Extra
Inspectio Crassitudinis Muri
Finis Inspectionis
Resistentia electrica conglutinata (Modus fabricationis est soldadura resistentiae electricae vel soldadura fundi. Modus finitionis potest esse calido vel frigido. Tubi frigido conglutinati post fabricationem recoquendi sunt.)
Tolerantia OD et WT
| Divisio | Tolerantia in OD | Tolerantia in WT | |
| Tubus Ferreus ERW | 10.5mm ≤ D ≤ 48.6mm | ±0.5 mm | -12.5% + Non specificatum |
| D = 60.5mm | ±0.5 mm | ||
| D = 76.3mm | ±0.7 mm | ||
| 89.1mm ≤ D ≤ 139.8mm | ±0.8 mm | ||
| D = 165.2mm | ±0.8 mm | ||
| D = 190.7mm | ±0.9 mm | ||
| D = 216.3mm | ±1.0 mm | ||
| D = 241.8mm | ±1.2 mm | ||
| D = 267.4mm | ±1.3 mm | ||
| D = 318.5mm | ±1.5mm | ||
| 355.6mm ≤ D ≤ 508.0mm | - | ||
| Tubus ASTM A252 ERW | Tubus rotundus ERW |
| Tubus ASTM A53 B ERW | Tubus ferreus ERW conglutinatus |
| Tubus Ferreus ERW | Tubus Chalybis Niger ERW |
| Tubus ERW ex chalybe molli | Tubus Chalybis Carbonis ERW |
Tubus Chalybis Carbonis ERW ASTM A53 Gr.A et Gr. B ad Altam Temperaturam
Tubus ferreus structuralis ERW EN10210 S355J2H
JIS G3454 Tubus Chalybis Carbonis ERW Pressio Servitii
Tubi Chalybis Carbonis ERW JIS G3452 ad Tubos Ordinarios
EN10219 S275J0H S275J2H / S275JRH Tubus Pali Ferrei STRUCTURALIS ERW









