S31500,S31803,S32900,S31260,S32750,S32550 duplex steel pipe / dual phase steel pipe

S31500 duplex steel pipe,S31803 duplex steel pipe manufacturer ,S32900 duplex steel pipe,S31260 duplex steel pipe producer,S32750duplex steel pipe exporter ,S32550 duplex steel pipe / dual phase steel pipe,

zheheng steel is one of s31500 duplex steel seamless pipe manufacturer ,s31803 dual phase steel pipe exporter ,s31260 duplex steel pipe, ss 32960 duplex steel pipe supplier,more than many years experence ,we have ability provide to you high quality dual phase steel pipes with lowest price ,our duplex steel pipes are also used in Industry,Construction,

S31500 duplex steel pipe chemical composition:

Duplex steel pipe details description:

Mechanical Tests Required
1 Tension Tests—One tension test shall be made on a specimen for lots of not more than 50 tubes. Tension tests shallbe made on specimens from two tubes for lots of more than 50
tubes (see Note 2).
2 Flaring Test (for Seamless Tubes)—One test shall be made on specimens from one end of one tube from each lot(see Note 1) of finished tubes. The minimum expansion of the
inside diameter shall be 10 %.
3 Flange Test (for Welded Tubes)—One test shall be made on specimens from one end of one tube from each lot (see Note1) of finished tubes.
4 Hardness Test—Brinell or Rockwell hardness tests shall be made on specimens from two tubes from each lot
5 When more than one heat is involved, the tension,flaring, flanging, and hardness test requirements shall apply to each heat.
6 Reverse Flattening Test—For welded tubes, one reverse flattening test shall be made on a specimen from each 1500 ft[450 m] of finished tubing.

Product show:

Zheheng steel is one  incorporate of manufacturer, Exporter ,consultant ,stockist company specialized in the area of stainless steel tubing , pipe fittings ,Flanges and other stainless steel grade accessories . It is one-stop-shop company ,our team have more than 20 years experience in stainless steel field ,especially in heat exchanger tubing and large diameter pipes with ultra-long, ultra-thin, ultra-thick or ultra-large various and some special-purpose projects .

After years of efforts,we now became more and more stronger , we have consist of four company respectively located in wenzhou(headquarter),lishui,chengdu city,two factorys of ss stainless pipe workshop in lishui ,another one ss pipe fittings workshop located in wenzhou ,one domestic sales company located in chengdu.

On Time, On Budget, For Over 20 Years

Our reputation is for providing competitive prices, technical services and on time deliveries for every project for over 20 years. Our inventory is computerized so our employees can respond quickly to all your requests. If a specific product is not in stock when you request it, we guarantee same day shipping or shortest lead time available.

Our regular feture products are 304/304L,316L, 321,310s,austentic serious ,duplex steel 2205 ,hastelloy c276,inconel 625 ,and super stainless steel 904L , All of our products meet or exceed AISI/ASTM A213 ,A269,A312,EN 10216,GHOST 9941 ,GB,JIS standard. per your specific requirements and include full documentation.

More photos about our workshop :