Welded stainless steel pipe

production

Welded stainless steel pipe is done with the standard parameters: wall thickness 1 — 20 mm, ∅19 — 1000 mm If the material for such tubes is high alloy steel, they are welded by the arc method under the protection of inert gases. For welding of carbon steel grades used high frequency welding. High speed HF-welding up to 0.6 m/sec, significantly reduces the cost of production. These pipes are ideal for building structures, but not suitable for the food industry.

Relevance

Accessory stainless steel welded tubes for semi-finished products of corrosion-resistant steel allows their use in conditions of high humidity, industrial condensate. Thanks to the optimal technological and operational parameters such material can work under heavy load, for example in mechanical engineering, actively opposes the influence of atmospheric and soil corrosion, ensuring reliability and durability of the structures. Stainless steel welded pipe are widely used in housing and communal services and construction. They perfectly fit into the interior and the exterior of the building. can be used in architecture to create different decorative designs — props, pillars, railings, located inside and outside the building and in the local area. The elements of these tubes add originality,

10X17H13M2T

The percentage composition of the alloy according to the 10X17H13M2T GOST 5632−72.

Mo	C	Si	Cr	Ni	Ti	Mn	P	S	Fe
2−3	≤0,1	≤0,8	16−18	12−14	≤0,7	≤2	≤0,035	≤0,02	basis

A distinctive feature of this brand of stainless steel is a good weldability. You can use any types of welding: manual, electric arc and gas. The welding can be performed without heating and the final heat treatment. But to produce welds of better quality required annealing at a temperature of 250−300°C. To perform the welding operation is recommended to use electrodes of two types: VAW-13 and EA-400/10U. They allow you to increase weld strength and eliminate intergranular corrosion.

12X18H9T

Percentage composition GOST 5632−72.

Alloy	C	Ti	Cu	Ni	Cr	Mn	P	S	Si	Fe
12X18H9T	≤0,12	≤0,8	≤0.3 mm	8−9,5	17−19	≤0,2	≤0,035	≤0,02	≤0,8	basis

12X18H9T steel used in welded structures, operating under significant mechanical loads. In addition to high temperature, this steel is used for cryogenic equipment, when the temperature can reach -196°C. the Characteristics of steel 12KH18N9T allows its use in hot oxidizing environments for equipment operating under pressure.

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