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1.4828, AISI 309

We can produce 1.4828, AISI 309 stainless steel round rods, 1.4828, AISI 309 forging,sheet,coil,and profiledstrip,Deformed steel,flat steel,mould,steel wire,have all specifications. With DuoNian production experience, strict control 1.4828, AISI 309 chemical composition and 1.4828, AISI 309 mechanical properties.From casting, forging, steel to hot and cold rolling process, heat treatment, etc, we have the control of professional engineers. We have advanced precision machining equipment, according to the requirements of users machining. in order to achieve the most satisfied with the user requirements.

Production specification

Round bar steel: 1mm to 3500mm
Square-shape steel: 1mm to 4000mm
Plate steel:0.1mm to 4000mm
Width: 10mm to 2500mm
Lenth: We can supply any lenth based on the customer's requirement.
Forging: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes
Tubings: OD: φ6-1800mm, with wall thickness ranging from 1-35 mm.
Finished goods condition: hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering/any conditions based on the customer's requirement
Surface conditions: scaled (hot working finish)/ground/rough machining/fine machining/based on the customer's requirement
Furnaces for metallurgical processing: electrode arc + LF/VD/VOD/ESR/Vacuum consumable electrode.
Ultrasonic inspection: 100% ultrasonic inspection for any inperfections or based on the customer's requirementExcellent service for all kinds of industries,with advantages of technologies, equipment and price.
We serve you with our honesty, integrity, and professionality.

1.4828, AISI 309

Designation by Standards

Brand Name LH No. Mat. No. DIN EN AISI
PK349 349 1.4828* - - 309

Chemical Composition (in weight %)

C Si Mn Cr Mo Ni V W Others
max. 0.08 max. 1.00 max. 2.00 23.00 max. 0.75 13.50 - - max. Cu=0.75

Description
This steel is known for good strength and oxidation resistance in continuous service temperatures up to 1093oC. It is superior to 304 stainless in both strength and corrosion resistance.

Applications
Oven linings, boiler baffles, fire box sheets, furnace components and other high temperature containers, parts for steam boiler lining, and their operation. 

Physical properties (avarage values) at ambient temperature
Modulus of elasticity [103 x N/mm2]: 200 
Density [g/cm3]: 8.0
Thermal conductivity [W/m.K]: 15.6 
Electric resistivity [Ohm mm2/m]: 0.78
Specific heat capacity[J/g.K]: 0.50
Magnetisable: No

Coefficient of Linear Thermal Expansion 10-6 oC-1

20-100oC 20-315oC 20-538oC
15.0 16.6 17.2

Soft Annealing
Heat to 1050-1150oC, then quenching in water. Structure is austenite.

Hardening
This alloy does not respond to heat treatment. Cold work will cause an increase in both hardness and strength.

Forging
Hot forming temperature: 1150-950oC. 

Machinability
This alloy machines similarly to type 304 stainless. Its chips are stringy and it will work harden rapidly. It is necessary to keep the tool cutting at all times and use chip breakers.

Corrosion Resistance 
This steel is slightly more resistant to corrosion than 304 stainless. It will resist nitric, nitric-sulfuric, acetic, lactic and citric acids in mild dilutions. It is recommended for use in oxidizing but not reducing compounds.

Welding 
Most of the austenitic stainless steels can be readily welded using fusion or resistance methods. Oxyacetylene welding is not recommended. Filler metal should be AWS E/ER 309 or 309L.

Cold working 
Although this alloy has a high work hardening rate, it can be drawn, headed, upset, and stamped. Full annealing is required after cold work to remove internal stress.
  

Mechanical properties

1.4828, AISI 309 Mechanical properties,Our production completely according to the 1.4828, AISI 309 standards to meet the 1.4828, AISI 309 mechanical performance, can also according to the customer request, to meet the requirements of customers of 1.4828, AISI 309 mechanical properties.

Heat treatment

1.4828, AISI 309 Heat treatment,Our production completely according to the 1.4828, AISI 309 standards to meet the 1.4828, AISI 309 Heat treatment, can also according to the customer request, to meet the requirements of customers of 1.4828, AISI 309 Heat treatment.

Machining

1.4828, AISI 309 Machining,Our production completely according to the 1.4828, AISI 309 standards to meet the 1.4828, AISI 309 Machining, can also according to the customer request, to meet the requirements of customers of 1.4828, AISI 309 Machining.

Welding performance

1.4828, AISI 309 Welding performance,Our production completely according to the 1.4828, AISI 309 standards to meet the 1.4828, AISI 309 Welding performance, can also according to the customer request, to meet the requirements of customers of 1.4828, AISI 309 Welding performance.

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