The length of tungsten electrode protruding from the gas nozzle is preferably ~ mm. In places with poor shielding such as fillet welding， it is ~ mm， and in places with deep groove， it is ~ mm. The distance from the nozzle to the working is generally no more than mm.
4 SPHDSPHD—& mdash; Hot rolled steel plate and strip for stamping.
h Series & mdash; martensitic precipitation hardening stainless steel pipe.
— Martensite (high strength chromium steel)， good wear resistance and poor corrosion resistance.
IHaldenTax included: the invoice contains % tax， with a density of GCM，Stainless steel pipe which is also called stainless steel in the industry. High temperature resistance of ℃，Combined stainless steel plate water tankSound insulation performance of with the characteristics of good processing performance and high toughness， it is widely used in industry， furniture decoration industry and food and medical industry.
This kind of steel pipe can be divided into stainless steel seamless steel pipe and stainless steel welded steel pipe (slotted pipe). According to different manufacturing processes， it can be divided into several basic types: hot rolling， extrusion， cold drawing and cold rolling. According to the section shape， it can be divided into circular pipe and special-shaped pipe. Circular steel pipe is widely used， but there are also some square， rectangular，Stainless steel pipe semi-circular， hexagonal Equilateral triangle， octagonal and other special-shaped stainless steel pipes.
Hydraulic saw grinding disc (manual saw wire cutting machine).
vIn order to ensure the appearance quality of continuous casting slab， select appropriate maintenance slag; During continuous casting， equivalent to China Al () deep drawing steel. If it is necessary to ensure non aging property， add n at the end of the brand as spcen. Quenching and tempering code of cold-rolled carbon steel sheet and strip: annealing status is a， standard quenching and tempering is s， / hard is / ， hard is / ， hard is . Surface processing code: dull finish rolling is D，Stainless steel pipe bright finish rolling is B. spcc-sd represents cold-rolled carbon sheet generally used for standard quenching and tempering and matt finish rolling. Another example is spcct-sb It refers to cold-rolled carbon sheet with standard quenching and tempering and bright processing and required to ensure mechanical properties.
PApplication processHan Jianbiao， an analyst at Zoomlion steel，Combined stainless steel plate water tankSound insulation performance of pointed out that since， Chinas steel pipe exports have been only or tons per month， of which seamless pipe exports are only about tons per month.
aXIn view of the continuous vibration of stainless steel pipe shopping malls， even & ldquo; Roller coaster & rdquo; Market， stainless steel pipe market participants are implementing it carefully & ldquo; Fast forward and fast Exit & rdquo; Therefore the national stainless steel pipeline inventory has been at a low level. High price sales of various specifications of stainless steel plate， stainless steel belt and stainless steel pipe. Waste sellers stainless steel coil， industrial companies， enterprises and power departments are welcome to visit and negotiate with the company! At the beginning，tisco stainless steel sheet,taigang stainless steel sheet,stainless steel sheet,stainless steel coil,stainless steel strip,stainless steel tube-TISCO Stainless Steel Co.,Ltd the social inventory of stainless steel pipes should progress with the progress of economic aggregate， and with the progress of total output and demand. However， stainless steel pipe inventory did not increase too much， or even did not increase， indicating a relative decline in social inventory level. Low inventory has indeed played a role in market stability.
Difference between L stainless steel pipe and stainless steel pipe: and L stainless steel are molybdenum containing stainless steel. The molybdenum content of L stainless steel is slightly higher than that of stainless steel. Due to the molybdenum in the steel， the overall performance of this steel is better than that of and stainless steel. Stainless steel has a wide range of applications under high temperature conditions when the concentration of is lower than % and higher than %. In addition， stainless steel also has good chloride corrosion performance， so it is usually used in marine environment. The large carbon content of L stainless steel is .， which can be used in applications where annealing cannot be carried out after welding and great corrosion resistance is required.
Chinas numbering rules adopt the use of element symbols and Chinese pinyin. Open hearth steel: P， boiling steel: killed steel: class a steel: T: Special: ball joint steel and spring steel， such as crm
resourcesmThe pipes for pipe cutting shall be professionally cut by stainless steel. Rotate it for two circles， then slightly tighten the piece， and then rotate it for two circles until it is cut off. It must not be enough to allow personal strength to be in place at one time to lock the piece to cut off the pipe， otherwise the pipe end will be cut off， and the pipe fittings or rubber rings cannot be inserted; After the pipe above DN is cut， and an appropriate outer slope opening shall be opened at the same time to avoid damaging the sealing ring.
GStabilization treatment. Generally it is used for - steel containing Ti and Nb in the solid solution treatment line. After the solid treatment， the steel is heated to ~ ℃ for heat preservation and air cooling. At this time， the carbides of Cr are completely dissolved， while the carbides of titanium removal are not completely dissolved， and they are fully precipitated during the cooling process， s stainless steel pipe and L stainless steel pipe to ensure the quality， Guarantee service. Guarantee quality. Your satisfaction is our pursuit! Welcome to inquire. Therefore， intergranular corrosion is effectively eliminated.
Spcespce & mdash; & mdash; refers to cold-rolled carbon steel sheet and strip for deep drawing， equivalent to China Al () deep drawing steel. If it is necessary to ensure non aging property， add n at the end of the brand as spcen. Quenching and tempering code of cold-rolled carbon steel sheet and strip: annealing status is a， standard quenching and tempering is s， / hard is / ， hard is / ， hard is . Surface processing code: dull finish rolling is D， bright finish rolling is B. spcc-sd represents cold-rolled carbon sheet generally used for standard quenching and tempering and matt finish rolling. Another example is spcct-sb It refers to cold-rolled carbon sheet with standard quenching and tempering and bright processing and required to ensure mechanical properties.
kThe folded stainless steel hot rolled strip is hot rolled into a strip with a thickness of mm-mm and a width of mm-mm.
fIClamping operation the jaw of the caliper must be placed perpendicular to the axis of the pipe and pipe fitting， and the convex ring of the pipe fitting needs to be put into the groove of the jaw for clamping. In order to prevent operation， the operator can only stand on the axis of the pipe not on the left and right sides of the tong head.
HL polishing with appropriate particle size abrasive material to make the surface show continuous grinding lines.