ASTM A358 Electric Fusion Welded stainless steel pipe
EFW ( Electric Fusion Welded stainless steel pipe) stands for Electric fusion welding
|Product name||stainless steel pipe|
|Grade||201 304 316 904L 2205 2507|
|Standard||BS, JIS, GB, DIN, ASTM, API, ASTM|
|Surface||polishing,annealing,bright annealing and acid pickling|
|Length||AS PER CUSTOMER|
|Usage|| Widely used in the areas such as Sanitary,food industry,
|Condition of delivery||Austenite in solution,ferrite in anneal or in accordance with clients detailed requirement|
|Price terms||CIF or FOB Shanghai|
|Payment terms||L/C or T/T|
|supply ability||25 Metric tons per day|
|Delivery Detail||15-20 days,according to the quantity.|
ASTM A358 304 Electric Fusion Welded stainless steel pipe
ERW stands for Electric resistance welding stainless steel pipe
ERW (pipe and submerged arc welding pipe welding methods have significant difference, is without the pressure of the filler metal welding method, welding seam, not fill other ingredients in skin effect by the high frequency current and near effect, make the edge instant heating to welding temperature, formed by squeezing roller extrusion forging welding seam of the organization.High quality steel pipe require the use of online or offline weld heat treatment, thus refine welding area organization, high grade ERW welded pipe weld can reach the same as the parent metal toughness, it is out of reach for submerged arc welding process.
EFW ( Electric Fusion Welded stainless steel pipe) stands for Electric fusion welding.
Submerged arc welding (SAW) – a kind of electric welded (EFW), is by one or a few consumable electrode and workpiece between the metallic heating combination between the metal in a process, the arc melted metal and the filler material fully, do not need to pressure, filler metal part work makes all come from the electrode.
Molten gas protection welding (GMAW) — a type of electric welding (EFW) similar to submerged arc welding, but with better protection from inert gas.
Spiral welding – this is also a type of submerged arc welding with a spiral weld.