Description
Stainless Steel 304L Hollow Bars, UNS S30403, 1.4306/1.4307 Manufacturers & Suppliers in India – Buy High Quality Stainless Steel Hollow Bars!
Asiamet is one of the biggest manufacturers and producers for stainless steel hollow bars in 304, 304H and 304L grades. We can supply various sizes of stainless steel 304L hollow bars at the most competitive prices in the industry. Stainless steel 304L hollow bars supplied by Asiamet, are widely used in many industries. Finishes on stainless steel 304L hollow bars can vary and include cold drawn, smooth turned, rough turned, turned ground and polished. Asiamet supplies metric size and imperial size 304L hollow bars with random length or fixed length up to 6 meters. Typical applications of hollow bars include manufacturing bushes, cylinders, conveyor rolls, hollow shafts, hollow components, nuts, and rings.
Due to its anti-corrosive properties, stainless steel 304L bars have become essential in the manufacturing of parts for the medical, tooling, mechanical, engineering and food industries.
- 303 stainless steel bars- has good corrosion resistance, free machining, not suitable for welding or forming.
- 304 stainless steel bars – has good corrosion resistance, suitable for forming and welding.
- 316 stainless steel bars – Is our highest grade and has excellent corrosion resistance, is suitable for forming and welding.
Stainless steel is one of the most widely used and versatile type of steel. Stainless steel is often referred to as ‘corrosion-resistant steel’ – it does not stain, corrode or rust as easily as normal carbon steel. There are more than 60 grades of stainless steel and divided into five families.
Production & Stock Range for Stainless Steel 304L Hollow Bars, UNS S30403, 1.4306 / 1.4307 SS Hollow Bars
| Product |
Stainless Steel 304/304L Hollow Bars |
| Standard |
ASTM/ASME A/SA276, ASTM/ASME A/SA479, ASTM/ASME A/SA 484 |
| Length |
Custom Length, Upto 6 Meters |
| Size |
- Metric size honed tubes: I.D 30 mm to I.D 500 mm, Wall thickness 3 – 50 mm
- Imperial size honed tubes / inch size honed pipe: 1.5” ID – 14.0” Honed ID; 1/8” – 1” wall thickness
|
| Testing |
100% Ultrasonic Test, Chemical & Mechanical Testing |
| Surface Finish |
Black, Peeled, Polished, Bright, Hair Line, Brush, Sand Blast |
| Type |
Hot Rolled,Cold Drawn, Centerless Grinding, Forged |
| Surface Treatment |
Annealed and Pickled |
| Value Added Services |
Laser Cutting, Polishing, Grinding, Heat Treating, Saw Cutting, Forming, Rolling, Shearing |
| Manufacturers |
Viraj, Mukund, Laxcon, Imported, Jindal, Other Indian Manufacturers |
| Origin of Goods |
India, Europe, Japanese, UK, Korea, Thailand, Taiwan. |
| Export Countries |
Saudi Arabia, Tanzania, Africa, Nigeria, Qatar, Oman, UAE and Other Middle East Nations |
| Delivery Time |
Immediate for Goods in Ready Stock, 10-40 Days for Production QTY’s |
| Packing |
Wooden Pallets, Export Sea-Worthy Packing |
| Applications |
Off-Shore Oil Drilling Companies, Power Generation, Petrochemicals, Gas Processing, Specialty Chemicals, Pharmaceuticals, Pharmaceutical Equipment, Chemical Equipment, Sea Water Equipment, Heat Exchangers, Condensers, Pulp and Paper Industry |
| Test Certificates |
As per EN 10204 3.1 |
| Inspection |
Seller Inspection, Buyer Inspection or Third Party Inspection |
Chemical Composition (%) of Stainless Steel 304L Hollow Bars, UNS S30403, 1.4306/1.4307 SS Hollow Bars
| Grade |
C≤ |
Si≤ |
Mn≤ |
P≤ |
S≤ |
Ni |
Cr |
| 304 |
0.08 |
1 |
2 .00 |
0.045 |
0.03 |
8.00-11.00 |
18.00-20.00 |
| 304L |
0.03 |
1 |
2 .00 |
0.045 |
0.03 |
8.00-12.00 |
18.00-20.00 |
| 304H |
0.10 |
0.75 |
2.00 |
0.045 |
0.03 |
8.00-10.5 |
18.00-20.00 |
Mechanical Properties of Stainless Steel 304L Hoolow Bars, UNS S30403, 1.4306/1.4307 SS Hollow Bars
| GRADE |
Tensile Strength : Unit – ksi (MPa) , Minimum |
Yeild Strength : 0.2 % Offset , Unit – ksi (MPa) , Minimum |
Elongation : in 2″, Unit : % , Minimum |
HARDNESS |
| 304 |
75 (515) |
30 (205) |
40 |
92 HRB max |
| 304L |
70 (485) |
25 (170) |
40 |
92 HRB max |
| 304H |
75 (515) |
30 (205) |
40 |
92 HRB max |
Equivalents of Various Grades of Stainless Steel 304L Hollow Bars, UNS S30403, 1.4306/1.4307 SS Hollow Bars
| STANDARD |
WERKSTOFF NR. |
UNS |
JIS |
BS |
GOST |
AFNOR |
EN |
| SS 304 |
1.4301 |
S30400 |
SUS 304 |
304S31 |
08Х18Н10 |
Z7CN18‐09 |
X5CrNi18-10 |
| SS 304L |
1.4306 / 1.4307 |
S30403 |
SUS 304L |
3304S11 |
03Х18Н11 |
Z3CN18‐10 |
X2CrNi18-9 / X2CrNi19-11 |
| SS 304H |
1.4301 |
S30409 |
– |
– |
– |
– |
– |
Chemical Composition of Various Grades of Stainless Steel Hollow Bars
| Grade |
C≤ |
Si≤ |
Mn≤ |
P≤ |
S≤ |
Ni |
Cr |
| 201 |
0.15 |
1 |
5.5-7.5 |
0.5 |
0.03 |
3.50-5.50 |
16.00-18.00 |
| 202 |
0.15 |
1 |
7.5-10.0 |
0.5 |
0.03 |
4.00-6.00 |
17.00-19.00 |
| 304 |
0.08 |
1 |
2 .00 |
0.045 |
0.03 |
8.00-11.00 |
18.00-20.00 |
| 304L |
0.03 |
1 |
2 .00 |
0.045 |
0.03 |
8.00-12.00 |
18.00-20.00 |
| 309 |
0.2 |
1 |
2 .00 |
0.04 |
0.03 |
12.00-15.00 |
22.00-24.00 |
| 309S |
0.08 |
1 |
2 .00 |
0.045 |
0.03 |
12.00-15.00 |
22.00-24.00 |
| 310 |
0.25 |
1.5 |
2 .00 |
0.04 |
0.03 |
19.00-22.00 |
24.00-26.00 |
| 310S |
0.08 |
1 |
2 .00 |
0.045 |
0.03 |
19.00-22.00 |
24.00-26.00 |
| 316 |
0.08 |
1 |
2 .00 |
0.045 |
0.03 |
10.00-14.00 |
16.00-18.00 |
| 316L |
0.03 |
1 |
2 .00 |
0.045 |
0.03 |
10.00-14.00 |
16.00-18.00 |
| 316Ti |
0.08 |
1 |
2 .00 |
0.045 |
0.03 |
10.00-14.00 |
16.00-18.00 |
| 410 |
0.15 |
1 |
1 .00 |
0.04 |
0.03 |
0.6 |
11.50-13.50 |
| 430 |
0.12 |
0.12 |
1 |
0.04 |
0.03 |
0.6 |
16.00-18.00 |
Mechanical Properties of Stainless Steel Hollow Bars
| Grades |
Density |
Melting Point |
Tensile Strength (min.) |
Yield Strength (0.2%Offset) (min.) |
Elongation (min.) |
| 304 |
8.0 g/cm3 |
1400 °C (2550 °F) |
Psi – 75000 , MPa – 515 |
Psi – 30000 , MPa – 205 |
35% |
| 304H |
8.0 g/cm3 |
1400 °C (2550 °F) |
Psi – 75000 , MPa – 515 |
Psi – 30000 , MPa – 205 |
35% |
| 304L |
8.0 g/cm3 |
1400 °C (2550 °F) |
Psi – 75000 , MPa – 515 |
Psi – 30000 , MPa – 205 |
35% |
| 310 |
7.9 g/cm3 |
1402 °C (2555 °F) |
Psi – 75000 , MPa – 515 |
Psi – 30000 , MPa – 205 |
40% |
| 316 |
8.0 g/cm3 |
1400 °C (2550 °F) |
Psi – 75000 , MPa – 515 |
Psi – 30000 , MPa – 205 |
35% |
| 316L |
8.0 g/cm3 |
1399 °C (2550 °F) |
Psi – 75000 , MPa – 515 |
Psi – 30000 , MPa – 205 |
35% |
| 316TI |
8.0 g/cm3 |
1399 °C (2550 °F) |
Psi – 75000 , MPa – 515 |
Psi – 30000 , MPa – 205 |
35% |
| 317 |
7.9 g/cm3 |
1400 °C (2550 °F) |
Psi – 75000 , MPa – 515 |
Psi – 30000 , MPa – 205 |
35% |
| 317L |
7.9 g/cm3 |
1400 °C (2550 °F) |
Psi – 75000 , MPa – 515 |
Psi – 30000 , MPa – 205 |
35% |
| 321 |
8.0 g/cm3 |
1457 °C (2650 °F) |
Psi – 75000 , MPa – 515 |
Psi – 30000 , MPa – 205 |
35% |
| 347 |
8.0 g/cm3 |
1454 °C (2650 °F) |
Psi – 75000 , MPa – 515 |
Psi – 30000 , MPa – 205 |
35% |
| 904L |
7.95 g/cm3 |
1350 °C (2460 °F) |
Psi – 71000 , MPa – 490 |
Psi – 32000 , MPa – 220 |
35% |
| 446 |
7.5 g/cm3 |
1510 °C (2750 °F) |
Psi – 75,000 , MPa – 485 |
Psi – 40,000 , MPa – 275 |
20% |
Weight Calculation of Stainless Steel Bars
Weight of Stainless Steel Round Bar
Dia ( mm ) X Dia (mm ) X 0.00623 = Wt. Per. Mtr.
Dia ( mm ) X Dia (mm ) X 0.0019 = Wt. Per. Feet.
Weight of Stainless Steel Square Bar
Dia ( mm ) X Dia ( mm ) X 0.00788 = Wt. Per. Mtr
Dia ( mm ) X Dia ( mm ) X 0.0024 = Wt.Per. Feet.
Weight of Stainless Steel Hexagonal Bar
Dia ( mm ) X Dia ( mm ) X 0.00680 = Wt. Per.Mtr
Width ( mm ) X Dia ( mm ) X 0.002072 = Wt. Per Feet
Weight of Stainless Steel Flat Bar
Width (mm ) X Thick ( mm ) X 0.00798 = Wt.Per Mtr.
Width (mm ) X Thick ( mm ) X 0.00243 = Wt.Per Feet.
PREN for various Grades of Stainless Steel
What is PREN?
Pitting resistance equivalent numbers (PREN) are a theoretical way of comparing the pitting corrosion resistance of various types of stainless steels, based on their chemical compositions. In general, the higher PREN-value, the more resistant is the stainless steel to localized pitting corrosion by chloride. The elements which have a significant impact are chromium, molybdenum and nitrogen.
The formula used to calculate PREN is as below:
PREN = %Cr + 3.3(%Mo) + 16(%N)
PREN = 1 × %Cr + 3.3 (%Mo + 0.5 × %W) + 16 × %N
| Grade |
Type |
Cr |
Mo |
N |
PREN |
| Ferritic |
|
|
|
|
|
| 1.4003 |
– |
10.5-12.5 |
NS |
0.030 max |
10.5-12.5 |
| 1.4016 |
430 |
16.0-18.0 |
NS |
NS |
16.0-18.0 |
| 1.4113 |
434 |
16.0-18.0 |
0.9-1.4 |
NS |
19.0-22.6 |
| 1.4509 |
441 |
17.5-18.5 |
NS |
NS |
17.5-18.5 |
| 1.4521 |
444 |
17.0-20.0 |
1.8-2.5 |
0.030max |
23.0-28.7 |
| Austenitic |
|
|
|
|
|
| 1.4301 |
304 |
17.5-19.5 |
NS |
0.11max |
17.5-20.8 |
| 1.4311 |
304LN |
17.5-19.5 |
NS |
0.12-0.22 |
19.4-23.0 |
| 1.4401/4 |
316/316L |
16.5-18.5 |
2.0-2.5 |
0.11max |
23.1-28.5 |
| 1.4435 |
316L (2.5% min Mo) |
17.0-19.0 |
2.5-3.0 |
0.11max |
25.3-30.7 |
| 1.4406 |
316LN |
16.5-18.5 |
2.0-2.5 |
0.12-0.22 |
25.0-30.3 |
| 1.4539 |
904L |
19.0-21.0 |
4.0-5.0 |
0.15max |
32.2-39.9 |
| 1.4563 |
Sanicro 28 |
24.0-26.0 |
3.0-4.0 |
0.11max |
35.9-43.0 |
| 1.4547 |
254SMO |
19.5-20.5 |
6.0-7.0 |
0.18-0.25 |
42.2-47.6 |
| 1.4529 |
1925hMo |
19.0-21.0 |
6.0-7.0 |
0.15-0.25 |
41.2-48.1 |
| 1.4565 |
4565S |
24.0-26.0 |
4.0-5.0 |
0.30-0.60 |
42.0-52.1 |
| Duplex |
|
|
|
|
|
| 1.40621 |
2202 |
22 |
0.4 |
0.2 |
26.5 |
| 1.4162 |
2101LDX |
21.0-22.0 |
0.1-0.8 |
0.20-0.25 |
24.5-28.6 |
| 1.4362 |
SAF 2304 |
22.0-24.0 |
0.1-0.6 |
0.05-0.20 |
23.1-29.2 |
| 1.4462 |
SAF 2205 |
21.0-23.0 |
2.5-3.5 |
0.10-0.22 |
30.8-38.1 |
| 1.44102 |
SAF 2507 |
24.0-26.0 |
3.0-4.0 |
0.24-0.35 |
> 40.2 |
| 1.45012 |
Zeron 1002 |
24.0-26.0 |
3.0-4.0 |
0.20-0.30 |
> 40.2 |
| 1.45072 |
Ferrinox 2552 |
24.0-26.0 |
3.0-4.0 |
0.20-0.30 |
> 40.2 |
Alternative Grades to Stainless Steel 304L Grade
| Features |
|
| 303 |
Stainless steel 303 grade can be used when higher machinability is needed, and lower corrosion resistance, formability and weldability are acceptable. |
| 316 |
Stainless steel 316 grade can be used when higher resistance to pitting and crevice corrosion is required, in chloride environments. |
| 321 |
Stainless steel 321 grade can be used when better resistance to temperatures of around 600-900°C is needed. 321 has higher hot strength. |
| 3CR12 |
Stainless steel 3CR12 can be used when lower cost is required, and the reduced corrosion resistance and resulting discoloration are acceptable. |
| 430 |
Stainless steel 430 grade is acceptable when a lower cost is required, and the reduced corrosion resistance and fabrication characteristic are acceptable. |
Service Temperature of Various Grades of Stainless Steel Bars
| Grade |
Intermittent service temperature |
Continuous service temperature |
| 304 |
1600°F |
1700°F |
|
(870°C) |
(925°C) |
| 316 |
1600°F |
1700°F |
|
(870°C) |
(925°C) |
| 309 |
1800°F |
2000°F |
|
(980°C) |
(1095°C) |
| 310 |
1900°F |
2100°F |
|
(1035°C) |
(1150°C) |
| 410 |
1500°F |
1300°F |
|
(815°C) |
(705°C) |
| 420 |
1350°F |
1150°F |
|
(735°C) |
(620°C) |
| 430 |
1600°F |
1500°F |
|
(870°C) |
(815°C) |
Testing of Stainless Steel Hollow Bars
- Manufacturer’s Test Certificate is Provided – Our materials undergo strict quality tests before dispatching them to our clients. All are materials are supplied with Mill Test Certificates, as per EN 10204 3.1
- Various Testing: Mechanical Testing, Hardness Test, Chemical Analysis, Positive Material Identification (PMI), Flattening Test, Micro and Macro Test, Pitting Resistance Test, Flaring Test, Intergranular Corrosion (IGC) Test.
Marking of Stainless Steel Hollow Bars
As a standard, Asiamet provides all stainless steel bars marked with Manufacturers Name, Size and Heat No., which can be co related with the test certificate for the product.
Packaging of Stainless Steel Hollow Bars
Asiamet is one of the best company in for delivery of goods with shortest lead times. Our products like stainless steel flat bars are packed to ensure that there is no damage in transit.
Documents Provided to Domestic & Overseas Customers
| Certificate of Origin Legalized/Attested by Chamber of Commerce or Embassy |
| Commercial Invoice including HS Code |
| Packing List including number of boxes, net weight and gross weight, Marks and Numbers |
| Fumigation Certificates |
| Raw Material Test Reports |
| Heat Treatment Charts |
| Material Traceability Records |
| Quality Assurance Plan (QAP) |
| NABL Approved Laboratory Test Reports |
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