— General model; stainless steel. The GB brand is CrNi.
8 · Pulp and paper industry classifier， bleaching equipment， storage and treatment system.
kMarking: in order to make the steel pipe complete the socket of the pipe fitting， the length must be marked and marked at the pipe end.
Stainless steel pipe national standard thickness in the stainless steel pipe industry， the steel that meets the national standard is generally called & ldquo; National Standard & rdquo; Inferior steel that does not meet national standards is called & ldquo; Winning the bid& ldquo; Non standard & rdquo; In practical application， mainly due to the difference in thickness. A thickness of national standard is actually mm，Stainless steel round steel but a thickness of non-standard is actually only .mm or other thickness less than mm. Non-standard is basically equivalent to winning the bid. Standard index size (mm) label number standard implementation standard gbt- non-standard specific thickness ratio outer diameter steel pipes are produced according to the standard. non-standard belongs to customized difference. Wood office says ha ha customized on demand. thickness area: the difference between standard，Model of stainless steel pipeHow much is it thickened， stainless steel American Standard and national standard mainly lies in C content and P content; The C content and P content of Chinese standards are lower than those of American Standard ASTM A@_@ The two important elements of material are chromium and nickel， large plants and large plants of national standard and small plants of American Standard @_ @ The national standard contains more than chromium and the American Standard contains more than chromium@_@ Stainless steel pipe is an American Standard， not in the national standard. The corresponding national standard is crni.
MZaprejikThe Ministry of Commerce announced that the European Commission announced that it would impose a final anti-dumping duty of % ~ % on Chinas stainless steel seamless steel pipes exported to Europe， which made the steel pipe enterprises already under the pressure of domestic and foreign troubles worse.
Vq cold rolled oriented silicon steel strip (sheet) represents: times of DQ + iron loss value (at the frequency of Hz， the magnetic induction peak with sinusoidal waveform is the unit weight iron loss value of T) + times of thickness value. Sometimes G is added after the iron loss value to indicate high magnetic induction. For example， dq represents cold-rolled oriented silicon steel strip (sheet) with iron loss value of and thickness of .mm. Now the new model is q.
According to rolling， it can be divided into hot rolled hot extruded and cold drawn (rolled) stainless steel pipes.
The corrosion resistance of corrosion-resistant stainless steel plate mainly depends on its alloy composition (chromium， nickel，Stainless steel round steel titanium， silicon， aluminum， manganese， etc.) And internal structure， chromium plays a major role. Chromium has high chemical stability， can form a passive film on the steel surface， isolate the metal from the outside， protect the steel plate from oxidation and increase the corrosion resistance of the steel plate. After the passive film is damaged， the corrosion resistance decreases.
zDuplex stainless steel product description: This stainless steel has good corrosion resistance in urea carbamate solution and high stress corrosion cracking resistance in chloride environment. At the same time，Stainless steel round steel the duplex stainless steel has excellent mechanical properties and can be used in plant construction with high safety requirements.
PMechanical properties when the steel or sample is stretched， when the stress exceeds the limit even if the stress is no longer increased，Model of stainless steel pipeHow much is it the steel or sample continues to have obvious plastic deformation， which is called yield， and the small stress value when the yield phenomenon occurs is the yield point.
UTrustworthyThe application range is wider than that of ferritic stainless steel. Compared with ferritic stainless steel， duplex stainless steel has the following disadvantages: high alloy element content and relatively high price. Generally， ferritic stainless steel does not contain nickel.
kIAs we all know， stainless steel pipe has a strong ability of atmospheric oxidation and is not easy to rust under normal circumstances， & ldquo; Stainless steel pipe & rdquo; Hence the name of. But what I want to tell you today is rust
Oxygen plus gas flame can not cut stainless steel plate because stainless steel is not easy to be oxidized.
& Ge; about thickness: cold rolled B plate (. & mdash; mm); hot rolled industrial plate No. (-mm) medium plate， chemical plate and high temperature plate; width: mm --- mm steel strip; ，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 ， ， and mm coil plate and flat plate surface: B smooth surface， No. industrial surface， BA (K) mirror， K mirror， K mirror， wire drawing surface and frosted surface.
Trustworthys — Martensite (high strength chromium steel)， cold-rolled pipe cold drawn pipe and extruded pipe. Cold drawing and cold rolling are the secondary processing of steel pipe; Welded pipe is divided into straight seam welded pipe and spiral welded pipe.
The steel strip can be delivered without heat treatment under the condition that all properties meet the standard requirements. Ordinary drawing grade steel strip is allowed to be delivered without heat treatment.
gThe internal and external greasy dirt and sundries at the pipe end shall be completely removed to keep the pipe inside the pipe fittings clean.
wZ — The corrosion resistance is the same， and the strength is better because the carbon content is relatively high.
The design shall be carried out according to the factors such as trench soil， groundwater， grooved section and load conditions. It is required to be firm and reliable， and shall not hinder pipe laying and pipe stabilization.