We could produce Alloy 31 pipes,Alloy31 pipes,Alloy 31 seamless pipes,Alloy 31 welded pipes,Alloy 31 boiler pipes, Alloy 31 heat exchanger pipes,Alloy 31 Capillary pipes,Alloy31 Thermocouple pipes,Alloy 31 Superheater pipes and reheater pipes,Alloy 31 condenser pipe,Alloy 31 finned pipes,Alloy31 furnace pipes,Alloy 31 instrumentation pipes,Alloy 31 Evaporator pipes,Alloy 31 honed pipes,Alloy31 coiled pipes,Alloy 31 Precision pipes,Alloy 31 High pressure pipes,Alloy 31 hydraulic pipes from china

The outer diameter of Alloy 31 pipes that we could do is from 0.4MM to 850MM,The thickness of Alloy 31 that we could do is from 0.12MM to 100MM

As per surface finish of Alloy31 pipes, we could do pickled and polish into bright surface as per the requirement of the clients, also for bright surface of Alloy 31 pipes, we could meet 2D finish.No. 4 Finish,No. 6 Finish,No. 7 Finish as per the requirement of the clients

Alloy 31 is is characterized by outstanding resistance to corrosion in halide media, both acidic and basic; outstanding resistance to sulfuric acid, even highly concentrated; outstanding resistance to corrosion and erosion-corrosion in phosphoric acid media; excellent resistance to both localized corrosion and general corrosion in chlorine dioxide bleach media; excellent resistance to both reducing and oxidizing media, and ease of fabrication and welding. Approval for pressure-vessel use involving wall temperatures from -196 to 550oC (-320 to 1020oF).

The chemical composition of Alloy 31 pipes is as follows

Simbol	Maximum
C	0,015
Mn	2,0
P	0,020
S	0,010
Si	0,30
Ni	30,0-32,0
Cr	26,0-28,0
Mo	6,0-7,0
N	0,15-0,25
Cu	1,0-1,4
Fe	Balance

The mechanical propery of Alloy31 seamless pipes is as follows

Norm	Rm min.	Rp 0,2% min.	E4d min.%	Z min.%	T.I.(J)	HR B	HB
Weled Pipes	94 (650)	40 (276)	40
Seamless Pipes	100 (650)	40 (276)	40

As per heat treatment of Alloy 31 pipes, we could do solution treatment, annealed treatment as per the requirement of the clients

As per material of Alloy 31 pipes, our raw material has been melted by  EAF+VOD-ESR methods

We produce Alloy 31 seamless pipes and weled pipes as per the standard of ASTM B622 and ASTM B619

In order to control the quality of Alloy31 seamless pipes and weled pipes, we will do Positive material identification (PMI),Visual inspection,Dimensional inspection.Laser micrometer inspection,Destructive testing( includes tensile, hardness, bending, flattening, flare and metallurgical tests),ultrasonic testing and pressure testing,Liquid Penetrate testing as per the requirement of the clients

Our Alloy 31 pipes are packed wooden crates lined with wax craft paper, tri-wall clay-coated reinforced cases

Our Alloy 31 seamless pipe and weled pipes are widely used in many industry :Flue gas scrubbers,Chlorination systems,Acid production and pickling systems,Outlet ducting and stack liners for power plants,Sulfur dioxide scrubbers,Pulp and paper bleach plants,Weld overlay of less corrosion resistant metals,Pesticide and other agrichemical production,Tubular heat exchangers,Plate heat exchangers,Nuclear fuel reprocessing,incineration scrubber systems and so on

We could supply Alloy 31 pipe material certificate as per En10204-3.1 or EN10204-3.2 by third parts(like TUV,DNV,GL,and so on)

Please send us the size and quantity of Alloy 31 pipes that you need, we are glad to quote the best price for your side

Except Alloy 31 pipes,we also could produce Alloy 31 flanges,Alloy 31 plates,Alloy 31 fastener,Alloy 31 bolts,Alloy 31 pipe fittings,Alloy 31 bars,Alloy 31 tubes,Alloy 31 springs