304 304L Stainless Steel Round Pipe ASTM A312 For Industry 3000mm - 6000mm
304 304L 316 316L Stainless Steel Round Welded Tube ASTM A312
Product Description
Standard: ASTM A249, ASTM A268, ASTM A269, ASTM A312, etc.
Material: 304 304L 316 316L
Item: Polished Bright Surface 316 316L welded stainless steel pipe for exhaust
Specification:
Outer diameter: 1.0-1220mm (1/8”-48”)
Wall thickness: 0.1-150mm (SCH 5S- XXS)
Length: 3m, 5.8m, 6m, 11.8m, or as request.
Surface: Pickled, annealed, polished, bright, sand blast, hair line, etc.
What is the Difference Between 304 and 316 Stainless Steel?
The straightforward answer is that 304 has 18% chromium and 8% nickel while 316 has 16% chromium, 10% nickel and 2% molybdenum. Both of these 300 grade steels are known for their excellent welding and forming properties, which give them applications across many industries. Masteel is a key supplier of 304 and 316 grades of stainless steel and can provide both cut profiles and advice on fabrication and properties.
Chemical Composition
| Material | C | Si | Mn | P | S | Ni | Cr | Mo | N |
| 201 | ≤0.15 | ≤1.00 | 5.5~7.5 | ≤0.060 | ≤0.03 | 3.5~5.5 | 16.0~18.0 | - | - |
| 304 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.03 | 8.0~11.0 | 18.0~20.0 | - | - |
| 304L | ≤0.03 | ≤0.75 | ≤2.00 | ≤0.045 | ≤0.03 | 8.0~12.0 | 18.0~20.0 | - | - |
| 316 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.03 | 10.0~14.0 | 16.0~18.0 | 2.00~3.00 | - |
| 316L | ≤0.03 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.03 | 10.0~14.0 | 16.0~18.0 | 2.00~3.00 | ≤0.10 |
The sheet for pipes' diameter and thickness
| Unit: mm | |||||||||||||||||||
| Nominal diameter | Out diameter | Nominal wall thickness | |||||||||||||||||
| A | B | ASME | JIS | DIN | JIS | DIN | SCH10 | SCH20 | SCH30 | STD | SCH40 | SCH60 | XS | SCH80 | SCH100 | SCH120 | SCH140 | SCH160 | XXS |
| 15 | 1/2" | 21.3 | 21.7 | 21.3 | 2.8 | 2.0 | 2.11 | - | 2.41 | 2.77 | 2.77 | - | 3.73 | 3.73 | - | - | - | 4.78 | 7.47 |
| 20 | 3/4" | 26.7 | 27.2 | 26.9 | 2.8 | 2.3 | 2.11 | - | 2.41 | 2.87 | 2.87 | - | 3.91 | 3.91 | - | - | - | 5.56 | 7.82 |
| 25 | 1" | 33.4 | 34.0 | 33.7 | 3.2 | 2.6 | 2.77 | - | 2.90 | 3.38 | 3.38 | - | 4.55 | 4.55 | - | - | - | 6.35 | 9.09 |
| 32 | 1 1/4" | 42.2 | 42.7 | 42.4 | 3.5 | 2.6 | 2.77 | - | 2.97 | 3.56 | 3.56 | - | 4.85 | 4.85 | - | - | - | 6.35 | 9.70 |
| 40 | 1 1/2" | 48.3 | 48.6 | 48.3 | 3.5 | 2.6 | 2.77 | - | 3.18 | 3.68 | 3.68 | - | 5.08 | 5.08 | - | - | - | 7.14 | 10.15 |
| 50 | 2" | 60.3 | 60.5 | 60.5 | 3.8 | 2.9 | 2.77 | - | 3.18 | 3.91 | 3.91 | - | 5.54 | 5.54 | - | - | - | 8.74 | 11.07 |
| 65 | 2 1/2" | 73.0 | 76.3 | 76.1 | 4.2 | 2.9 | 3.05 | - | 4.78 | 5.16 | 5.16 | - | 7.01 | 7.01 | - | - | - | 9.53 | 14.02 |
| 80 | 3" | 88.9 | 89.1 | 88.9 | 4.2 | 3.2 | 3.05 | - | 4.78 | 5.49 | 5.49 | - | 7.62 | 7.62 | - | - | - | 11.13 | 15.24 |
| 90 | 3 1/2" | 101.6 | 101.6 | - | 4.2 | - | 3.05 | - | 4.78 | 5.74 | 5.74 | - | 8.08 | 8.08 | - | - | - | - | - |
| 100 | 4" | 114.3 | 114.3 | 114.3 | 4.5 | 3.6 | 3.05 | - | 4.78 | 6.02 | 6.02 | - | 8.56 | 8.56 | - | 11.13 | - | 13.49 | 17.12 |
| 125 | 5" | 141.3 | 139.8 | 139.7 | 4.5 | 4.0 | 3.40 | - | - | 6.55 | 6.55 | - | 9.53 | 9.53 | - | 12.7 | - | 15.88 | 19.05 |
| 150 | 6" | 168.3 | 165.2 | 168.3 | 5.0 | 4.5 | 3.40 | - | - | 7.11 | 7.11 | - | 10.97 | 10.97 | - | 14.27 | - | 18.26 | 21.95 |
| 200 | 8" | 219.1 | 216.3 | 219.1 | 5.6 | 6.3 | 3.76 | 6.35 | 7.04 | 8.18 | 8.18 | 10.31 | 12.70 | 12.70 | 15.09 | 18.26 | 20.62 | 23.01 | 22.23 |
| 250 | 10" | 273.0 | 267.4 | 273.0 | 5.8 | 6.3 | 4.19 | 6.35 | 7.80 | 9.27 | 9.27 | 12.70 | 12.70 | 15.09 | 18.26 | 21.44 | 25.40 | 28.58 | 25.40 |
| 300 | 12" | 323.8 | 318.5 | 323.9 | 6.6 | 7.1 | 4.57 | 6.35 | 8.38 | 9.53 | 10.31 | 14.27 | 12.70 | 17.48 | 21.44 | 25.40 | 28.58 | 33.32 | 25.40 |
| 350 | 14" | 355.6 | 355.6 | 355.6 | 6.9 | 8.0 | 6.35 | 7.92 | 9.53 | 9.53 | 11.13 | 15.09 | 12.70 | 19.05 | 23.83 | 27.79 | 31.75 | 35.71 | - |
| 400 | 16" | 406.4 | 406.4 | 406.4 | 7.9 | 8.8 | 6.35 | 7.92 | 9.53 | 9.53 | 12.70 | 16.66 | 12.70 | 21.44 | 26.19 | 30.96 | 36.53 | 40.49 | - |
| 450 | 18" | 457.2 | 457.2 | 457.0 | 7.9 | 10.0 | 6.35 | 7.92 | 11.13 | 9.53 | 14.27 | 19.05 | 12.70 | 23.83 | 29.36 | 34.93 | 39.67 | 45.24 | - |
| 500 | 20" | 508.0 | 508.0 | 508.0 | 7.9 | 11.0 | 6.35 | 9.53 | 12.70 | 9.53 | 15.09 | 20.62 | 12.70 | 26.19 | 32.54 | 38.10 | 44.45 | 50.01 | - |
| 550 | 22" | 555.8 | 558.8 | - | - | - | 6.35 | 9.53 | 12.70 | 9.53 | - | 22.23 | 12.70 | 28.58 | 34.93 | 41.28 | 47.63 | 53.98 | - |
| 600 | 24" | 609.6 | 609.6 | 610.0 | - | 12.5 | 6.35 | 9.53 | 14.27 | 9.53 | 17.48 | 24.61 | 12.70 | 30.96 | 38.89 | 46.02 | 52.37 | 59.54 | - |
| 650 | 26" | 660.4 | 660.4 | - | - | - | 7.92 | 12.70 | - | 9.53 | - | - | 12.70 | - | - | - | - | - | - |
| 700 | 28" | 711.2 | 711.2 | 711.0 | - | 12.5 | 7.92 | 12.70 | 15.88 | 9.53 | - | - | 12.70 | - | - | - | - | - | - |
| 750 | 30" | 762.0 | 762.0 | - | - | - | 7.92 | 12.70 | 15.88 | 9.53 | - | - | 12.70 | - | - | - | - | - | - |
| 800 | 32" | 812.8 | 812.8 | 813.0 | - | 12.5 | 7.92 | 12.70 | 15.88 | 9.53 | 17.48 | - | 12.70 | - | - | ||||
| 850 | 34" | 863.6 | 863.6 | - | - | - | 7.92 | 12.70 | 15.88 | 9.53 | 17.48 | - | 12.70 | - | - | ||||
| 900 | 36" | 914.4 | 914.4 | 914.0 | - | 12.5 | 7.92 | 12.70 | 15.88 | 9.53 | 19.05 | - | 12.70 | - | - | ||||
| 950 | 38" | 965.2 | 965.2 | - | - | - | 7.92 | 12.70 | 15.88 | 9.53 | - | - | 12.70 | - | - | ||||
| 1000 | 40" | 1016.0 | 1016.0 | 1016.0 | - | 12.5 | 7.92 | 12.70 | 15.88 | 9.53 | - | - | 12.70 | - | - | ||||
| 1050 | 42" | 1066.8 | 1066.8 | - | - | - | - | - | - | 9.53 | - | - | 12.70 | - | - | ||||
| 1100 | 44" | 1117.6 | 1117.6 | - | - | - | - | - | - | 9.53 | - | - | 12.70 | - | - | - | - | - | - |
| 1150 | 46" | 1168.4 | 1168.4 | - | - | - | - | - | - | 9.53 | - | - | 12.70 | - | - | - | - | - | - |
| 1200 | 48" | 1219.2 | 1219.2 | 1220.0 | - | - | - | - | - | 9.53 | - | - | 12.70 | - | - | - | - | - | - |
Stainless steel Applications
Typical applications include:
· Food preparation equipment particularly in chloride environments.
· Laboratory benches & equipment.
· Coastal architectural panelling, railings & trim.
· Boat fittings.
· Chemical containers, including for transport.
· Heat Exchangers.
· Woven or welded screens for mining, quarrying & water filtration.
· Threaded fasteners.
· Springs.
Production Process of stainless steel welded pipes
Products' Photos
FAQ
Q: Do you accept sample order?
A: Yes sure, please contact us for details.
Q: Are you a manufacturer or trading company?
A: We are a specialized manufacturer.
Q: How about the delivery terms?
A: 1. Payment: T/T, Western Union, Paypal, 30% deposit in advance and balance before delivery.
2. Min. Order Quantity: 100KG, or as required.
3. Transportation: By express (DHL,TNT,FedEx),air,sea,and train.
Q: How does your company control the quality?
A: Quality first. In order to guarantee high quality for our products,
Modern always makes a serious inspection for all products and raw materials in strict procedure.
Q: How about your after-sales service?
A: As a professional steel exporter, we offer promote technology support for all problems and questions.
Besides, we accept goods return or replace for quality problem.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.


