303 1.4305
303 1.4305 properties and heat treatment forged piece, Including 303 1.4305 application and specifications, We have all specifications，Including 303 1.4305 steel plate, 303 1.4305 sheet, 303 1.4305 square steel, 303 1.4305 flat bar,303 1.4305 round bar,303 1.4305 forgings, we can own production and sales.
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We can produce the 303 1.4305 has the following specifications:
Round bar steel: 1mm to 3000mm
Square-shape steel: 1mm to 2000mm
Plate steel:0.1mm to 2500mm
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: φ6-219 mm, 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.
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Chemical composition % of the ladle analysis of grade 303 1.4305 and Standards
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303 is a sulphur bearing austenitic free machining stainless. 303 stainless offers excellent corrosion resistance with improved machineability to the more popular 304 stainless grade. As with other austenitic stainless steel grades 303 stainless offer excellent toughness though the higher sulphur content reduces the toughness slightly in 303 stainless. 303 stainless will give good oxidation resistance in occasional service up to 750ºC and in continuous service up to 870ºC (but this is not recommended for 303 grade stainless) The higher sulphure content of 303 stainless steel gives the grade poor weldability and reduced formability compared with other austenitic stainless specifications.
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| Physical Properties 303 | ||||
| Temperature | ||||
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20ºC |
200ºC
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400ºC
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800ºC
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| Modulus of elasticity |
20000
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18500
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17000
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13500
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| kg/mm | ||||
| Specific heat |
0.105
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0.125
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0.135
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0.15
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| kcal/ºC | ||||
| Specific electrical resistance |
0.7
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0.8
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1.0
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1.15
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| (resistivity) | ||||
| Mean value for: | ||||
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20-100ºC
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20-200ºC
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20-400ºC
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20-800ºC
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| Coefficient of Thermal Expansion |
17
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17.5
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18
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19.5
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| x10-6 per ºC | ||||
| Density g/cm3 at 20ºC |
7.9
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| Scaling temperature ºC |
875ºC
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Typical Analysis |
303
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C.
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Mn.
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P.
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S.
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Si.
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Cr.
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Ni.
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0.15%
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2.00%
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0.05%
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0.15%
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1.00%
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17.00-
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8.00-
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max.
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max.
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max.
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min.
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max.
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19.00%
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10.00%
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Machining performance
Download 303 1.4305 the mechanical properties of the report, the report provides detailed performance analysis and application. Download >>
Principal Design Features
One of the most widely used precipitation hardening grades in the business. While soft and ductile in the solution annealed condition, it is capable of high properties with a single precipitation or aging treatment. Characterized by good corrosion resistance, high harness, toughness and strength.
Machinability
Long, gummy chips characterize this alloys machinability. It can be machined in the annealed condition, however condition H1150M will yield best results. Post machining solution treatment of parts will be required prior to final hardening if machining in this condition.
Heat Treatment
CONDITION A--Soak at 1900 F (1038 C) for 30 minutes and cool below 60 F (16 C) for complete martensite transformation. CONDITION H 950- Treat Condition A material at 900 F(482 C) for 1 hour, air cool.. CONDITION H925, H1025, H1075, H1100, H1150- Soak solution treated material for 4 hours at specified temperature, air cool, CONDITION H1150M- Soak solution treated material at 1400 F (760 C) for 2 hours, air cool, then re-heat to 1150 F (620 C) for 4 hours and air cool.
Welding
Successfully welded by common fusion and resistance methods, this alloy should not be joined by oxyacetylene welding. AWS E/ER630 filler metal is recommended if required.
Forging
Soak for 1 hour at 2150 F (1177 C) prior to forging. Do not work below 1850 F (1010 C). Post-work solution treatment is required prior to final hardening.