Duplex stainless steel pipe

Duplex Stainless Steel Pipe

Product description

Duplex Stainless Steel pipe has good welding performance. Compared with ferritic stainless steel and austenitic stainless steel, it is neither like the welding heat affected zone of ferritic stainless steel, which has a significant reduction in plastic toughness due to severe grain coarsening, nor is it sensitive to welding hot cracks like austenitic stainless steel.
Due to its special advantages, duplex stainless steel is widely used in industrial fields such as petrochemical equipment, seawater and wastewater treatment equipment, oil and gas pipelines, papermaking machinery, etc. In recent years, it has also been studied for use in the field of bridge load-bearing structures, and has a good development prospect.
Duplex stainless steel is a ferrite phase and austenite phase in its solid quenching structure, each accounting for half, and the content of the minimum phase may generally reach 30%.


Duplex stainless steel pipe

Grade	C≤	Mn≤	P≤	S≤	Si≤	Ni	Cr	Mo	N	Cu
S31803	0.03	2.00	0.03	0.02	1.00	4.5–6.5	21.0–23.0	2.5–3.5	0.08–0.20	-
S32205	0.03	2.00	0.03	0.02	1.00	4.5–6.5	22.0–23.0	3.0–3.5	0.14–0.20	-
S32750	0.03	1.20	0.035	0.02	0.80	6.0-8.0	24.0-26.0	3.0-5.0	0.24-0.32	0.5
S32760	0.05	1.00	0.03	0.01	1.00	6.0-8.0	24.0-26.0	3.0-4.0	0.20-0.30	0.50–1.00

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Gnee exports steel to more than 70 countries and cooperates with more than 600 companies around the world.

FAQ

Q: What are the shipping ports?

A: Under normal circumstances, we ship from Tianjin Port, you can choose other ports according to your needs.


Q: about product prices?

A: Prices vary from period to period due to cyclical changes in raw material prices.


Q: What are the main products of your company?

A: Our company mainly supplies stainless steel pipes, seamless stainless steel pipes, square stainless steel pipes, welded stainless steel pipes, heterosexual stainless steel pipes, precision stainless steel pipes, stainless steel plates, medium and thick plates, etc. all over the world. World.


Q: About the prices for Duplex stainless steel pipe?

A: Prices vary from period to period due to cyclical changes in raw material prices.