Stainless steel application

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Our products are used extensively in the construction industry ,vehicle parts,tableware,kitchen utensils,elevators,home appliances. The good corrosion resistance,formability and weldability make them an ideal material for this market. The following images will show our main products for you.

 

Introduction of the Ferrite

The ferrite has a body centered cubic crystal structure. Generally,this kind of steel is not containing nickel,but it contains a small amount of Mo,Ti and Nb. Because of his large thermal conductivity,small expansion coefficient,good oxidation resistance,good resistance to stress corrosion,etc,this kind of steel is used in the manufacture of air,water vapor and water resistance and oxidizing acid corrosion of components.Ferritic stainless steel price is relatively low and stable,and also has many unique characteristics and advantages. It has been proved that ,in many fields only adopts austenitic stainless steel(300) that has been thought,the application of ferritic stainless steel is a kind of very excellent alternative materials.

 

Characteristics

With high thermal conductivity and low thermal expansion rate,it is suitable for heat exchangers and automobile exhaust parts.

Compared with the ordinary ferrite matrials 430,it reduces the content of C,and be added Ti at the same time.That made its intergranular corrosion resistance,formabiliuty and weldability are improved.

Compared with the 304 steel,although it has low elongation(30%),but the strength and corrosion resistance are similar.

Corrosion resistance is better than the 200 series materials.

 

Usages

Elevator decoration building materials

Building decorative materials,such as decorative structures,structural tube

The components of automobile exhause system

The inner barrel of washing machine

 

 

Characteristics

【436L】

Excellent in corrosion resistance,drawability,and weldability due to the addition of Mo,Ti and Nb.

【436J1L(432)】 It is high corrosion resistance steel by being andded Mo elemnents.

Usages

【436L】

Automobile exhaust pipes,Hot water systems,Household electrical appliances

【436J1L(432)】

Automobile exhaust system

FERRITE441 17.5Cr-0.3Si-Ti-Nb-LCN

 

Characteristics

 

It contains little C,N. And It is added Ti,Nb to improve its high temperature strength,corrosion resistance,weldability and workability.

Usage

Automotive exhaust system

 

Characteristics

Heat resisting stainless steel.Si,Ti,Mn and Cu are added while the content of C and N is lowered.

It has great high temperature strength,oxidation resistance,formability and weldability.

Usages

Auto exhaust system:Heat resisting parts such as exhaust manifold

 

FERRITE 430J1L  19Cr-0.5Cu-0.4Nb-LCN

Characteristics

It is a new steel grade which is developed in order to apply to household appliances,tableware,E/V purpose,improve the 400 series Ridging phenomenon.

With the superior processability and corrosion resistance.

Its surface wrinkle occurrence degree is very mild after processed.

Usages

Processing with:Kitchen utensils(pot,household utensils,etc.),home appliance(washing machine,oven,electric rice cooker,etc)

Decoration:elevator

 

Characteristics

Excellent Weldability and formability by adding Ti

 

Usages

Auto exhaust parts(Catalytic Converter,Center&Tail Pipe/Muffler,Pipes),Heat exchangers,Containers,Heat-Vresistant conmponents

Heat-Vresistant components

Heat resistant machines which don’t need heat treatment after welding,Electronic components disk(Floppy shell,etc)

 

FERRITE  445NF(443CB)    21Cr-0.3Ti-0.4Cu-Si,Nb

Characteristics

445NF(443CB)steel is superior in corrosion resistance to 304steel.It has high thermal conductivity and low thermal expansion coefficient.

Low C/N,better corrosion resistance capability at welding position by adding Ti/Mo.

Excellent performance for deep-drawing,low work hardening,magnetizable for improving its performance machining.

Ussges

House hold utensils(sink,interior pipes,hot-water system bathbubs,boilers,and others),Electricance,Building,Boiler,Automobile parts,Reefer Containers,Water tanks.

 

FERRITE 430 16Cr-0.05C

Characteristics

Ferrite on behalf of the steel grade. It is representative of Ferritic Stainless Steel. And it is widely used.

It has low thermal expansion coefficient,excellent oxidation resistance.

 

Usages

Heat resistant products,Burners,Home appliances,Computer components(HDD),Flatware,Interior and exterior materials for architecture,Gas range stoves,Washing machine drums.

 

FERRITE 410l 12Cr-LCN

 

Characteristics

Lower C content than 410 stainless steel. It has good formability,bendability,and high-temperature oxidation resistance.

Usages

Products Requiring abrasion resistance and good weldability:reefer containers,automotive,mining,&industrial machine components.Porduct requiring formability and oxidation resistance at temperature lower than 820℃:Boiler combustion chambers,burnercomponents.

 

FERRITE 444  19Cr-12Mo-0.3Nb-LCN

Characteristics

Higher Cr and Mo content bring great iner-granular corrosion resistance and SCC resistance.

Usages

Potable water tank

Hot water system(solar/electric)

Heat exchanger

Auto exhaust manifold

 

Martensite

410       13Cr-0.04C

420N1    13Cr-0.1C-0.1N

420J2     13Cr-0.3C

 

Introduction of the Martensite

Generally speaking,martensite stainless steel is a kind of stainless steel which can be adjusted mechanical properties by quenching.It is a kind of stainless steel that can be hardened. The typical steel specification is Crl3,such as 2Crls,3Crl3,and 4Crl3. It will be harder after quenching than before,and the hardness will be different in different tempering temperature.This kind of stainless is mainly used for produce steam turbine blades,tableware,even surgical intruments.

 

Characteristics

(410)

A representative type of Martensitic stainless stee.It has superior drawability and is hardened through heat treatment.(magnetic)

(420N1)

Improved formability,corrosion resistance,and strenghth/Abrasion resistance compared with 420J1(magnetism).

(420J2)

Larger quenching hardness compared with 420J1.

 

Usages

Machiney parts,Tableware cutlery(spoons,forks,knives)

High-quality table knives requiring corrosion and abrasion resistance.

 

AUSTENITE

304    18Cr-8Ni

304L18Cr-9Ni-LC

304LN   18Cr-9Ni-LC-0.13N

304J1    17Cr-8Ni-2Cu

 

316     18Cr-12Ni-2Mo

316L     18Cr-12Ni-2Mo-LC

 

301        17Cr-7Ni

301L       17Cr-7Ni-LC

 

321         18Cr-9Ni-0.3Ti

 

202          17.5Cr-6Mn-2Ni-2Cu-N

 

204Cu         14Cr-10Mn-1.5Ni-1Cu-N

 

Introduction of the Austenitic

Austenitic stainless steel is a kind of stainless steel which has the Austenitic organization in normal temperature.When the steel contains about 18%Cr,8%~10%Ni,and 0.1%C,it will has the stable austenite organization. Austenitic stainless steel includes the famous 18Cr-8Ni steel and the higher 18Cr-8Ni steel series which has a higher content of Cr,Ni compared to the former and add Mo,Cu,Si,Nb,Ti elements. It has nonmagnetic,higher toughness and deformability,but lower strength,and it couldn’t be strengthened by phase transition. The only way to strengthen it is that through the cold rolling. It will make it easy for cutting by adding elemens of S,Ca,Se,Te etc.

 

Austenite

304    18Cr-8Ni

304L    18Cr-9Ni-LC

304LN    18Cr-9Ni-LC-0.13N

 

Characteristics

(304)Widely used steel type because of its good corrosion resistance,thermal resistance,strength at low temperatures,and mechanical properties.

 

(304L)

Low-carbon 304 stainless steel.It is excellent for inter-granular corrosion resistance.

304LN

304 stainless steel with low nitrogen.Superior tensile strength and corrosion resistance compared with conventional 304.

 

Usages

(304)

Household utensils(sinks,interior pipes,hot-water system bathtubs,and others),Automotive components(wipers,mufflers,moldings),Medical instruments,Building materials,Some industries(chemicals,food processing,textiles),Vessel parts.

 

(304L)

Machinery and tools used in chemical ,coal,and petroleum industries that require high inter-granular corrosion resistance,Building materials,heat-resisitant parts and parts tat are difficult to implement heat treament,LNG tanks

 

304LN

Water heater tanks,Chemical tanks.

 

Austenite  304J1    17Cr-8Ni-2Cu

 

Characteristics

Compared with 304,304J1 is added copper. It is nickel saving and cheap.It has good processing performance.

With the addition of Cu,304J1 has excellent antibiosis,formability,and deep drewability,also used for products requiring a sanitary environment.

 

Usages

Thermos bottles,Thermos lunch boxes,Kitchen pots,Catering facilities,Products requiring pinning and drawing.

 

AUSTENITE

316   18Cr-12Ni-2Mo

316L   18Cr-12Ni-2Mo-LC

 

Characteristics

【316】

With the addition of Mo in 304,316 steel is superior in corrosion resistance,pitting resistance,and high-temperature strength.

 

【316L】

Low –carbon 316 steel type,It has all the properties of 316 steel and has excellent inter-granular corrosion resistance.

Add Mo(2-3%),excellent corrosion resistance,especially the resistance to pitting corrosion,high temperature resistance and creep resistance.

Cold rolled products has good gloss appearance luster.

It is non magnetic in solid solution state.

Compared with the 304 stainless steel,its price is higher.

 

Usages

【316】

Potable water pipes,Equipment for manufacturing chemicals,paper,dyes,acetic acid and fertilizer,Structures in coastal areas,Photo industries,Food-processing industries

【316L】

Pulp and paper used equipment,heat exchanger,dyeing equipment,film processing equipment,pipelines,coastal areas with outside the building materials,and advanced the watch chain,watchcase purposes.Water use equipment,chemical,dyestuff,papermaking,oxalic acid,fertilizer and other production equipment;Photography,food industry,coastal facilities,rope,CD rod,bolts and nuts.

 

AUSTENITE

301   17Cr-7Ni

301L   17Cr-7Ni-LC

 

Characteristics

301 and 301L contain lower Cr and Ni content than 304 steel. Cold working increases strength and generates magnetism.

 

Compared to Aluminum,they are excellent in corrosion resistance,strength at high temperature,and fatigue strength.They are applicable for railway vehicles due to their economical efficiency,safety factor,and light weight.

 

◆Usages

Train interior and exterior panels,Structural materials of train,Components of electronic products

 

AUSTENITE

321  18Cr-9Ni-0.3Ti

 

Characteristics

Type 321 stainless steel is Ni-Cr-Ti austenitic stainless steel,its performance is very similar with 304,the Ti as a stabilizing element exists,but it is also a hot steel,in terms of high temperature is better than 316 l,suitable for use under 430℃~900℃ environment.321 stainless steel in different concentration,temperature,organic acid and inorganic acid,especially in oxidizing medium with good adrasion resistance.

 

321 stainless steel has excellent high temperature stress rupture properties and high temperature is better than that of 304 stainless steel.

 

Usages

Used in chemical,coal,grain boundary corrosion resistant requirements of high oil industry manufacture outdoor machine,building materials heat-resistant parts and heat treatment are difficult parts,such as:

Oil gas combustion pipe

Engine exhaust pipe

The shell of boiler,heat exchanger,furnace parts

Deadened the noise of diesel engine parts

Chemical transporter

Expansion joint

Combustion furnace pipe and dryers with spiral welded pipe

 

Characteristics

【202】

It is belong to the low nickel and high manganese steel whose nickel content is in commoly 4%,and manganese content is about 8%.And it is a section ofnickel stainless steel.

【204Cu】

204Cu stainless steel has high tensile strength and yield strength,and it has low cold hardening rate. Its cold forming performance is good,and there are 200 series steel wear resistance properties of natural.

 

Compared with 304,204Cu has better acidic environment corrosion resistance,but poorer high temperature oxidation resistance. It should not be used in the high temperature(400℃ or higher)oxidizing environment.

 

Uasges

【202】

 

It is mainly used in architectural decoration,municipal engineering,gighway guardrail,hotel facilities,shopping malls,vitreous armrest,public facilitiesand so on.

 

【204Cu】

Kind of cutlery,knives and forks

The kitchen utensils:sink,refrigerator,gas cookers,etc

The electrical products:washing machines,dryers etc

Building materials:anti theft door,stair handrail,etc

Steel pipe:decorative tube,construction tube,exhaust pipe

Transportation equipment,containers,railway vehicle

 

SURFACE FINISHING

Grades Processing Methods and Applications Surface Condition
No.2D A non-gloss cold rolled product that has undergone heat treatment and pickling treatment after hot rolling.  
No.2B Skinpass conduced on No.2D.Compared to No.2B has better gloss and surface flatness.A typical surface class with improved mechanical properties.  
No.3 Polishing conducted with 100-120 mesh abraser.  
No.4 Polishing conducted with 150-180mesh abraser.  
BA Brighter surface & better reflectivity than No.2B  
Hair Line Product No.4 ground by grinding material with appropriate granularity to produce continuous grinding lines.
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