Duplex Stainless Steel Tube and Pipe

Duplex Stainless Steel Tube and Pipe

(Super) Duplex Stainless Steel Pipe Dual phase stainless steel with α +γ dual phase structure, so the characteristics of the performance characteristics of the construction of austenitic stainless steel and ferritic stainless steel, is a kind of high strength and corrosion resistance of...

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(Super) Duplex Stainless Steel Pipe

Dual phase stainless steel with α +γ dual phase structure, so the characteristics of the performance characteristics of the construction of austenitic stainless steel and ferritic stainless steel, is a kind of high strength and corrosion resistance of stainless steel. Usually, in the case of low Cr, C content in 18%~28%, Ni content in 3%~10%. Some steels also contain Mo, Cu, Nb, Ti, N and other alloy elements.

Compared with ferrite, plastic, toughness, and no room temperature brittleness, the intergranular corrosion resistance and welding performance are significantly improved, while maintaining the 475 degrees of ferrite stainless steel and high thermal conductivity, has the characteristics of high plasticity. Compared with that of austenitic stainless steel, yield strength significantly increased resistance intergranular corrosion, should be stress corrosion and corrosion fatigue and abrasion performance is significantly improved.

Major Grade:S31803/S32250, S32750, S32760, S31500, S31500, 32001, S32003, S32304

Common standard

ASTM A789 (ASME SA789)

Seamless and Welded Ferritic / austenitic stainless steel tubes for general purpose

astm a790 (asme sa790)

Seamless and Welded Ferritic / austenitic stainless steel

ASTM A928 (ASME SA928)

With the filler metal fused Welded Ferritic / Austenitic (duplex) Standard Specification for stainless steel pipe

GB/T 21832-2008

AUSTENITIC FERRITIC duplex stainless steel welded steel tube

GB/T 21833-2008

AUSTENITIC FERRITIC duplex stainless steel seamless steel tube                

Performance features

1 excellent corrosion resistance and corrosion resistance, especially the corrosion resistance, corrosion resistance, corrosion resistance, corrosion resistance, wear resistance, etc.

2 good welding

3 good comprehensive mechanical properties

4 excellent intergranular corrosion resistance

5 cost-effective, long service cycle

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