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303 Stainless Steel Bar
Stainless Steel Bar
303 Stainless Steel
303 Stainless Steel Bar

303 Stainless Steel Bar

UNS S30300 (Grade 303) 303 stainless steel bar, also known as UNS S30300 and Grade 303, is considered a free machining stainless steel. 303 stainless steel’s corrosion resistance and great machinability make it one of the most popular free machining stainless steels available. It is used in a wide variety of parts from screw to general machining. Grade 303 does not respond to heat treatment, but the toughness is still excellent as with other austenitic grades.
Product information
AISI 303 stainless steel (UNS S30300) was developed for easy cutting and basically belongs to 18-8 stainless steel. It improves the cutting performance while maintaining good mechanical properties. SS 303 has a higher sulfur content, which reduces the resistance on the cutting tool, but has a negative impact on the corrosion resistance, so the corrosion resistance is not as good as AISI 304 stainless steel.
Industries that use 303 include:
  • General machining
  • Screw machining
Products partially or completely constructed of 303 include:
  • Aircraft fittings
  • Bushings
  • Gears
  • Nuts and Bolts
  • Screws
  • Bushings
    STOCKING DIAMETERS ½” TO 13”
    MATERIAL LENGTHS UP TO 12’
Basic Information:
Materials 200 Series:201,202
300 Series: 301,304,304L,309S,310S,316,316L,317L,321,321H,347H,
400 Series:409,410,420,430
Diameter Ø2mm-500mm
Length 1m-12m ,by customer's requirements
Ends  Plain, Beveled, Thread With Couplings Or Sockets;Plastic Caps
And Steel Rings Can Be Provided If Possible
Shaped Oval, Triangle, Hexagonal, Diamond, Octagonal, Semicircle,
Unequal hexagonal, etc., as the drawings offered by the clients
Process Cold Drawn, Hot Rolled
Surface Treatment Polished,Black,Grinding or as client's request.
Packing  1) Big OD:in bulk
2)Small OD:packed by steel strips
3)woven cloth with slats
4)according to the requirements of customers
Usage 1): Can be used in many fields such as building, automobile, shipbuilding, petrochemical, machinery, medicine, food, electric power, energy,
space, building and decoration, etc.
2): Can be made into mould template, mortise pin, column
3): This kind of steel have good mechanical property, is widely used in structural parts which may support stress alternation,
especially made into some connecting rods, bolts, wheel gear...

 
Technical data
BAR SPECIFICATIONS
UNS TYPE AMS ASTM FEDERAL CHARACTERISTICS
S30300 303 5640 A-314
A-582
Atmospheric corrosion resistance with improved mechanical properties. 303 is a 300 Grade with increased sulfur for good machinability.
 
CHEMISTRY ANALYSIS
C MN P S SI CR NI MO CU OTHER M/NM
.15 2. .2 15 Min. 1. 17. – 19. 8. – 10. .6 .5   NM

FAQ
1. How long can make delivery?
For stock products, will make shipments in 5- 7 days after receiving deposit or receiving L/C; for products need new production for common materials, usually make shipments in 15-20 days; for products need
new production for special and rare materials, usually need 30-40 days to make shipment.

2. Will the Test Certificate be certified to EN10204 3.1?
For the new production products no need furthur cutting or processing, will provide the Original Mill
Test Certificate certified to EN10204 3.1; for the stock products and the products need cutting or furthur processing, will issue Certificate of Quality on our Company, It will show the original mill name and the
riginal datas.

3. Once the received products found not comply with the products the contract demands, what will you do?
Once the received products found not comply with the products the contract lists, when receiving the pictures and the official documents and data from your side, if it is proved not comply, we will compensate the loss
at first time.
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