Imported t91, Katherine source steel (certified), Xiamen t91 provided by source Pipe Co., Ltd. Liaocheng trillion. Liaocheng Katherine source Pipe Co., Ltd. (www.lczygg.com) is specialized in "Q345b seamless steel pipe, 35crmo seamless steel pipe, 42crmo seamless" enterprise, the company of "honesty, hard service" concept, for you provide the highest quality products and services. Welcome to inquire! Contact: Manager Wu. The chemical composition of an inspection, according to the chemical composition and mechanical properties of the domestic supply of P91 alloy steel pipe t91, such as the chemical composition of the steel 10,15,20,25,30,35,40,45 No. 50 and should be consistent with GB / T699-88 provisions. Imported P91 alloy tube according to the provisions of the contract relating to the standard test. Chemical composition 09MnV, 16Mn, 15MnV steel shall conform to GB1591-79 of. 2, the specific reference analytical methods GB223-84 "steel and alloy chemical analysis methods," the relevant section. .3, Analytical bias reference GB222-84 "steel chemical assays and chemical composition of the finished product tolerance." 3 t91, alloy tube alloy pipe welding procedure specifications specifications for increasing argon protected areas and enhance the protective effect, can be large-diameter welded *** porcelain mouth, increased weld *** argon gas flow. When there is an obvious obstacle to the flow of argon gas flow to the nozzle when the spatter adhesion. You must remove or replace the nozzle spatter. When the tungsten tip pollution occurs, irregular and other phenomena must be trimmed or replaced. Tungsten should not extend outside of the nozzle. Control of welding temperature is mainly to control the welding speed and welding current size. The results showed that a large current, welding can effectively prevent the rapid generation of holes. This is mainly due to the welding process at a faster speed penetration welds, short heating time t91 molten metal alloy, fewer opportunities to absorb gases. T91 alloy steel pipe factory price excellent equipment, precision seamless technical force, advanced production technology, detection means complete, factory production of cold rolled precision light control system looks smooth, uniform thickness, no oxide layer, high precision cold rolled precision seamless steel pipe can withstand high pressure, cold bending, flaring, flattening without cracking does not wrinkle up Chau t91, can do a variety of complex deformation and mechanical processing, precision seamless alternative to traditional machining internal boring outside stripping process, not only reduces costs, but also reduce the two processing steps, improve processing efficiency, thereby increasing the efficiency. Quality of all the national standards, the products are widely used in automotive, power, petrochemical, shipbuilding, aerospace, bearings, pneumatic components, fuel tanks, boiler equipment, medical equipment, fitness equipment, tractors, motorcycles, reinforced connecting sleeve, cylinder tubes, machinery manufacturing and other industries; and well-known auto parts manufacturers to establish a long-term stable cooperative relations.