6m 303 Stainless Steel Hex Bar Stock Bright Surface For Construction
303 Stainless Steel Hexagonal Bar / 303 Stainless Steel Hex Bar S4 -S65 Customs Length as Request
Product Description:
| Product Name | stainless steel hexagon bar |
| Standard | JIS, AISI, ASTM, GB, DIN |
| Size | Diameter : S6-S65mm or as request |
| Length | Normal long 4M, Or as your request |
| Surface | Bright ,hairline finsh |
| Technics | cold drawn and polishing |
| Application | construction field, ships building industry, petroleum & chemical industries, war and electricity industries, food processing and medical industry, boiler heat exchanger, machinery and hardware fields ,etc. |
| Packing | Export standard or as customers' requirement |
| Delivery time | Within 15 working days, according to customers' quantities |
| Payment | L/C or T/T |
| MQQ | 1 Ton |
| Quality | High Quality.SGS inspection is accepted if needed |
| Productivity | 500 Tons/Month |
| Attention | We will supply you good quality and bottom price and first-class service in china and hope to be your golden supplier |
GENERAL PROPERTIES
Alloy 303 is a non-magnetic, austenitic stainless steel that is not hardenable by heat treatment. It is the free machining modification of the basic 18% chromium / 8% nickel stainless steel. Alloy 303 was specially designed to exhibit improved machinability while maintaining good mechanical and corrosion resistant properties Due to the presence of sulfur in the steel composition, Alloy 303 is the most readily machineable austenitic stainless steel; however, the sulfur addition does lower Alloy 303’s corrosion resistance to below that of Alloy 304. Like other austenitic grades, Alloy 303 demonstrates excellent toughness, although the sulfur does reduce this a little as well.
APPLICATIONS
Alloy 303 is frequently used in applications that require parts to be heavily machined. Some examples include:
- Nuts and bolts
- Aircraft fittings
- Gears
- Screws
- Shafts
- Electrical switchgear components
- Bushings
STANDARDS – ALLOY 303
ASTM/ASME ……………. UNS S30300
EURONORM ……………. FeMi35Cr20Cu4Mo2
DIN ………………………… 2.4660
CORROSION RESISTANCE
- Good resistance to mildly corrosive atmospheres, but significantly less than Alloy 304
- When additional sulfur is added to improve machinability, it can often slightly reduce corrosion resistance
- In most dry and mild corrosive environments, Alloy 303 is comparable to other unmodified alloys
- Should not be exposed to moist, marine environments as it is subject to rapid-pitting corrosion and a rust film will tend to form
- Like other common austenitic stainless steels, it is subject to corrosion cracking in chloride environments above 60oC
HEAT RESISTANCE
- Good oxidation resistance at temperatures up to 1700oF (927 oC)
- Continuous use at temperatures above 1400oF (760oC) is not usually recommended due to carbide precipitation which can lead to irregular scaling
- Does not have a low carbon content so it is also vulnerable to sensitisation
Chemical Properties:
| % | Cr | Ni | C | Si | Mn | P | S | Mo | Fe |
|---|---|---|---|---|---|---|---|---|---|
| 303 | min: 17.0 max:19.0 |
min: 8.0 max: 10.0 |
0.15 max |
1.00 max |
2.0 max |
0.20 max |
0.15 min | 0.75 | balance |
Mechanical Properties:
| Grade | Tensile Strength ksi (min.) |
Yield Strength 0.2% Offset ksi (min.) |
Elongation - % in 50 mm (min.) |
Hardness (Brinell) MAX |
Hardness (Rockwell B) MAX |
|---|---|---|---|---|---|
| 303 | 75 | 30 | 35 | 228 |
Products Show
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.