430 stainless steel is a universal steel with good corrosion resistance, better thermal conductivity than austenite, smaller thermal expansion coefficient than austenite, heat resistance fatigue, adding stabilized element titanium, good mechanical properties at the weld. 430 stainless steel used for building decoration, fuel burner parts, household appliances, home appliance parts. 430F is 430 steel with free cutting properties, mainly used in automatic lathes, bolts and nuts. 430LX add Ti or Nb in 430 steel, reduce the C content, improve the processing performance and welding performance, mainly used in hot water tank, heating water system, sanitary appliances, household durable appliances, bicycle flywheel and so on.

It is also known as 18/0 or 18-0 because of its chromium content. Compared with 18/8 and 18/10, it contains slightly less chromium and the hardness is correspondingly reduced.

The cracking caused by Stress (mainly tensile Stress) and Corrosion is called Stress Corrosion cracking (SCC). Austenitic stainless steel is prone to stress corrosion in corrosive media containing chloride ions. When the Ni content reaches 8%-10%, the stress corrosion tendency of austenitic stainless steel reaches the maximum, and when the Ni content increases to 45-50%, the stress corrosion tendency gradually decreases until it disappears.

The main way to prevent stress corrosion of austenitic stainless steel is to add Si2~4% and control N content below 0.04% from smelting. In addition, the content of P, Sb, Bi, As and other impurities should be reduced As far As possible. Another option is a-F duplex steel, which is insensitive to stress corrosion in Cl- and OH- media. When the initial microcrack encounters the ferrite phase, the ferrite content should be about 6%.

Austenitic deformation hardening of stainless steel

Single phase austenitic stainless steel has good cold deformation performance, can be cold drawn into a very fine steel wire, cold rolled into a very thin steel strip or steel pipe. After a lot of deformation, the strength of steel is greatly improved, especially when rolling in the subzero temperature zone. The tensile strength can reach more than 2000 MPa. This is because in addition to the cold hardening effect, deformation induced M transformation is added.

Austenitic stainless steel can be used to make stainless spring, clock spring, aerial structure wire rope and so on after deformation strengthening. If welding is required after deformation, only spot welding process can be used. Deformation increases stress corrosion tendency. And due to partial γ->M transformation of ferromagnetism, in use (such as instrument parts) should be taken into account.

The recrystallization temperature changes with the shape variable, when the shape variable is 60%, the recrystallization temperature drops to 650℃ cold deformation austenitic stainless steel recrystallization annealing temperature is 850~1050℃, 850℃ is needed for 3h, 1050℃ can be burned through, and then water cooling.

Transportation services

- Every cartons loaded with good shoring and strengthening. - Take container loading pictures and seal the container. - Transportation speed is quick. And keep customer eachstep informed.

FAQ

Q:Can you send samples?

A:Of course, we can send samples to all parts of the world, our samples are free, but customers need to bear the courier costs.

Q:What product information do I need to provide?

A:You need to provide the grade, width, thickness, coating and the number of tons you need to purchase.

Q:What are the shipping ports?

A:Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you can choose other ports according to your needs.

Q:About product prices?

A:Prices vary from period to period due to cyclical changes in the price of raw materials.

Q:What are the certifications for your products?

A:We have ISO 9001, SGS, EWC and other certifications.

Q:How long does your delivery time take?

A:In general, our delivery time is within 30-45 days, and may be delayed if the demand is extremely large or special circumstances occur.

Q:Can I go to your factory to visit?

A:Of course, we welcome customers from all over the world to visit our factory. However, some of the plants are not open to the public.

Q:Does the product have quality inspection before loading?

A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed.

Q:How to pack the products?

A:The inner layer has a waterproof paper outer layer with iron packaging and is fixed with a fumigation wooden pallet. It can effectively protect products from corrosion during ocean transportation.

Q:What is your working time?

A:In general, our online service time is Beijing time: 8:00-22:00, after 22:00, we will reply to your inquiry during the next

working day.