The type of stainless steel pipe (二)

　　It is generally believed that there is more than 15% on austenitic matrix of ferrite, or on the ferrite matrix is more than 15% of the austenite can be called austenite plus ferrite duplex stainless steel. Austenitic steel and duplex stainless steel pipe with the advantages of ferritic steel.

　　Fourth, markov shape stainless steel pipe

　　Markov shape stainless steel is a kind of can adjust its performance by means of the heat treatment of steel, its strength and hardness is taller.

　　Five, the precipitation hardening stainless steel pipe

　　Precipitation hardening stainless steel is made by means of heat treatment in steel carbide precipitates out, so as to achieve the goal of improving strength of steel.

　　SRT is a Group Company. Full name is Hebei Shengtian Group Reaguan Pipeline Co., Ltd, which mainly produce and export seamless steel pipes, spiral  steel pipes, welded steel pipes and oil pipes . Our annual output is 150000 tons. We have variety of specialized Engineers 98 persons that can supply better, convenient and fast service to our clients. Your want is always the direction of our efforts. Our company can supply you the following standards pipes. GB/T8163-2008， GB/T8162-2008， GB3087-2008， GB5310-2009， GB6479-2013， GB/T17396-2009，GB/T9711-2001/ API Spec 5L, API 5L PLS1/PLS2,  ASTM B36.10M-1996,DIN17175 ST45-III, DIN17440，BS EN 10255, SY/T5037-2012, SY/T5040-2012,  BS1387,BS1139, BS EN10219, GB/T3091,ASTM A53,ISO65, ASTM A500,BS EN10296-2006, JIS G3460, JISG3444-2006, JISG3445-2006, etc. Sizes are from 1/4 inch to 140 inches and thickness is from 2mm to 60mm.