Jiangsu, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Metallurgy, Mineral & Energy
Management System Certification:
ISO 9001, ISO 9000, ISO 14001, ISO 14000
OEM/ODM Service
Sample Available

303 Stainless Steel Rod, 303 Stainless Steel, 303 Stainless Steel Angel Bar manufacturer / supplier in China, offering ASTM303 Stainless Steel Polished Round Bar, Nickle Alloy 90 Rod Nimonic 90 Uns No07090 Nickel-Chromium-Cobalt Alloy Round Bar, High Precision Uns N07090 2.4969 Nickel Alloy Nimonic 90 Strip and so on.

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ASTM303 Stainless Steel Polished Round Bar

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Min. Order / Reference FOB Price
2 Tons US $1,000-2,000/ Ton
Port: Shanghai, China
Production Capacity: 500tons/Month
Payment Terms: L/C, T/T, Western Union, Paypal, Money Gram, Cash
Standard: ASTM, AISI, GB, JIS, DIN, En,SUS
Certification: ISO
Technique: Cold Rolled
Surface Treatment: 2b,Mirror,Ba,No.1,No.4
Price Term: L/C T/T (30% Deposit)
Packing: Standard Sea-Worthy Packing

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Basic Info

Payment Term
30%Tt Advance + 70% Balance
200 Series/300 Series/400series
Transport Package
Normal Sea Package
according to customers′requirement
Tisco Jisco Baosteel Zpss Lisco
HS Code
ASTM303 Stainless Steel polished round bar
Key Properties
These properties are specified for long product (bar) in ASTM A582. Similar but not necessarily identical properties are specified for other products such as wire and forgings in their respective specifications. Grade 303 is not produced in flat rolled products.
Typical compositional ranges for grade 303 stainless steels are given in table 1.
Table 1. Composition ranges for 303 grade stainless steel
Mechanical Properties
Typical mechanical properties for grade 303 stainless steels are given in table 2.
Table 2. Mechanical properties of 303 grade stainless steel
GradeTensile Strength (MPa)Yield Strength 0.2% Proof (MPa)Elongation (% in 50mm)Hardness
Rockwell B (HR B)Brinell (HB)
303----262 max
Physical Properties
Typical physical properties for annealed grade 303 stainless steels are given in table 3.
Table 3. Physical properties of 303 grade stainless steel in the annealed condition
GradeDensity (kg/m3)Elastic Modulus (GPa)Mean Coefficient of Thermal Expansion (μm/m/°C)Thermal Conductivity (W/m.K)Specific Heat 0-100°C (J/kg.K)Electrical Resistivity (nΩ.m)
0-100°C0-315°C0-538°Cat 100°Cat 500°C
Grade Specification Comparison
Approximate grade comparisons for 303 stainless steels are given in table 4.
Table 4. Grade specifications for 303 grade stainless steel
GradeUNS NoOld BritishEuronormSwedish SSJapanese JIS
303S30300303S3158M1.4305X8CrNiS18-92346SUS 303
303SeS30323303S42----SUS 303Se
These comparisons are approximate only. The list is intended as a comparison of functionally similar materials not as a schedule of contractual equivalents. If exact equivalents are needed original specifications must be consulted.
Possible Alternative Grades
Possible alternative grades to grade 303 stainless steels are given in table 5.
Table 5. Possible alternative grades to 303 grade stainless steel
GradeWhy it might be chosen instead of 303
304Better corrosion resistance, formability or weldability are needed, at the expense of lower machinability.
316Higher resistance to pitting and crevice corrosion is required, in chloride environments. A lower machinability can be accepted.
416Even higher machinability than 303 is needed, and a lower corrosion resistance can be tolerated.
Or hardening by thermal treatment is required, while maintaining a high machinability.
Corrosion Resistance
Good resistance to mildly corrosive atmospheres, but significantly less than Grade 304 due to the sulphur addition; the sulphide inclusions act as pit initiation sites. Grade 303 should not be exposed to marine or other similar environments, as these will result in rapid pitting corrosion. Because the sulphide inclusions in 303 are primarily aligned along the rolling direction the corrosion resistance is particularly reduced in cross-sections.
Grade 303, like other common austenitic stainless steels, is subject to stress corrosion cracking in chloride containing environments above about 60°C.
Heat Resistance
Good oxidation resistance in intermittent service to 760°C and in continuous service to 870°C. Continuous use in 425-860°C range not usually recommended due to carbide precipitation - 303 usually does not have a low carbon content so is susceptible to sensitisation.
As well as reducing the corrosion resistance, the sulphur additions in 303 also result in poor weldability and reduced formability compared to Grade 304. Sharp bends should not be attempted in 303. A practical compromise alternative may be a 304 Ugima Improved Machinability grade - this does not machine as readily as 303, but does offer better formability (as well as better weldability and corrosion resistance).
Heat Treatment
Solution Treatment (Annealing) - Heat to 1010-1120°C and cool rapidly. This grade cannot be hardened by thermal treatment.
Not generally recommended but, if unavoidable and a lower strength can be tolerated, use Grade 308L or 309 electrodes. AS 1554.6 does not pre-qualify welding of 303. Welds must be annealed for maximum corrosion resistance.
A "Ugima" improved machinability version of grade 303 is available in round bar products. This machines significantly better even than standard 303, giving very high machining rates and lower tool wear in many operations.
Typical applications include:
         Nuts and Bolts
         Aircraft Fittings
         Electrical Switchgear Components
         In general any component that is heavily machined and where the corrosion resistance and fabrication properties of 303 are viable.
Source: Atlas Steels Australia
CommodityASTM303 stainless steel polished round bar
Key word303 Stainless Steel round bar/rod
Length6M,5.8M or 12M or as your requirements
Surfacepickled,black,bright,polished,blasting etc
Delivery time10-25 days after confirming the order,normally according to the order quantity
MOQ2 Ton
AdvantagesShowing the splendor of your quality, wearresistant as well , strong corrosion resistance and decorative effect, durable and beautiful in good taste.

 Pictures of stainless steel round bar
 ASTM303 Stainless Steel Polished Round Bar
ASTM303 Stainless Steel Polished Round Bar

Chemical Composition about  stainless steel round bar
ASTM303 Stainless Steel Polished Round Bar

Surface Finish stainless steel round bar

Surface Finish

Definition and Application
No.1The surface is finished by heat treatment and pickling or processes corresponding theretoafter hot rolling
2DThe finishes after cold rolling, by heat treatment,  pickling or other equivalenttreatment
2BThe finish after cold rolling, by heat treatment, pickling or other equivalent treatment and lastly by cold rolling to give an appropriate luster
BACold rolled, bright annealed and skin-passed, the product have excellent brightness and good reflexivity like mirror
NO.3Polished with abrasive belt of grit#100~#200,have better brightness with discontinuous coarse stria
NO.4Polished with abrasive belt of grit#150~#180,have better brightness with discontinuous coarse stria
HLPolished with abrasive belt of grit#150~#320 on the NO.4 finish and has continuous streaks
8KThe product have excellent brightness and prefect reflexivity can be the mirror

Production Flow about stainless steel round bar 
Procedures:Raw elements(C,Fe,Ni,Mn,Cr,Cu.)---Smelted ingots by AOD finery---hot rolled into black suface---pickling in acid liquid---cold drawn----polished by automatically machine---  cutting into pieces---checking quanlity---
Application:Stainless Steel can widely use for Industries, Constructions, Decorations, Life, Medical, Transportation, Chemical industry, Solar energy, Marine, Aviation, etc.
Product Usage:SS Bar (Round Bar, Square Bar, Flat Bar, Hexagon Bar, Angle bar)Widely Used in the areas such as Stainless Steel Fasteners, Chains, Kitchen and Sanitary wares, Furniture handles, Handrails, Electroplating and Electrolyzing pendants, Foods, Electron, Petroleum, Construction and Decoration, etc. Products have a high strength after cold-working. Electronic products parts, Medical appliance, Springs, Bus Inside and Outside packaging and building, Street Lamp Posts, etc. Decoration materials and Outdoor Publicity Billboard. Used for the products which have the Anti-Stress Corrosion requirement. Electron Products, Table-wares, Bolts, Nuts, Screen Meshes, Cumbustors and so on.

 packaging of stainless steel bar
We wrap the stainless steel products with anti rust paper and steel rings to prevent damage. Identification labels are tagged accordingto standard specification or customer's instructions. Special packing is available as per customer's requirement.

ASTM303 Stainless Steel Polished Round Bar


Company Introduction
Our company is based in Wuxi,Jiangsu province. We are SGS certificated. 

 We have more than eight  years of experiences in producing high quality stainless steel products,
 such as: 201, 301, 304, 321, 316, 316L, 309S and 310S Stainless steel sheets, 201, 301, 304, 321, 316, 316L, 309S and 310S Stainless steel pipes, and 1Cr17Ni2, 0Cr13, 1Cr13, 2Cr13, 3Cr13, 
4Cr13, 201, 301, 304, 321, 316, 316L, 309S and 310S Stainless steel rods, etc.

Specializing in supplying stainless steel sheet, stainless steel coil, stainless steel plate, steel plate, seamless steel tube etc. We can supply high quality products, good service and competitive price. We have been devoted to stainless steel production such as stainless steel plate/sheet, stainless steel coil&stainless steel bar, and processing of stainless steel, special steel and high grade carbon steel.

ASTM303 Stainless Steel Polished Round Bar

Q1:How many coutries you already exported ?
A1:Exported to more than 50 countries mainly from America, Russia, UK, Kuwait, Egypt, Iran,
      Turkey, Jordan, etc.
Q2:How can I get some samples?
A2:Small samples in store and can provide the samples for free. Catalgue is available, most
      patterns we have ready samples in stock. Customized samples will take about 5-7days.
Q3:What is the MOQ?
A3:Stainless steel coils 2 tons, pattern sheets 50pcs.
Q4:What is the delivery ?
A4:Sample order's delivery time is 5- 7 days. Container orders are about 15-20 days.
Q5:How does your company do regarding quality control?
A5:BV and SGS certificates, production process followed the ISO 9000system.
Q6:How To Protect The Sheets?
A6:Two white and black PE layers to cover the surface, each layer is 70 micro (Total
      140 micro) laser PVC is also workable.( Novacel or poli-film brand )
Q7:What is the application about your Products?
A7:1.elevator door/cabin or and escalator's side-wall.
      2.Wall cladding inside or outside meeting room/ restaurant.
      3.Facade when cladding over something, like columns in the lobby.
      4.Ceiling in the supermarket. 5.Decorative draws in some entertainment places.
Q8:How long Can You Guarantee for This Product/Finish?
A8:Color guarantee for more than 10 years. Original materials quality certificate can
       be provided.


ASTM303 Stainless Steel Polished Round Bar

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