Alpha Overseas is well known for producing SS 347/347H Sheet/Plate. Alloy 347 (S34700) is a stabilized stainless steel plate that, when exposed to temperatures in the chromium carbide precipitation range of 800 to 1500°F (427 to 816°C), exhibits exceptional resistance to intergranular corrosion. Columbium and tantalum are used to stabilize the alloy 347 stainless steel plate.
Stainless steel plate in grades 347 and 347H has several fascinating mechanical characteristics. Both materials start with tensile strengths of 75 KSI and yield strengths of 30 ksi at 0.2%. The elongation of this grade of stainless steel is 40%. 347 and 347H stainless steel plates have a hardness of 201 on the Brinell hardness scale and a hardness of 95 on the Rockwell B scale. In heavily oxidizing environments, 347 and 347H stainless steel plates have slightly greater corrosion resistance than 321 stainless steel plates. Due to its strong resistance to intergranular assault and columbium stabilization, it is preferred for aqueous and low-temperature settings.
Stainless Steel 347 Sheets, Stainless Steel 347H Plate, SS 347 Plates, SS 347H Plate Manufacturers, Stainless Steel 347H Sheet Supplier, 347 SS Plates, SS 347H Sheet, Stainless Steel 347H Plates Supplier in Mumbai, India.
The polythionic acid stress corrosion cracking that occurs in oil refineries is well-resisted by AISI 347 plate. Its resistance to oxidation at high temperatures is comparable to that of the AISI 304 plates. Resistance and fusion welding techniques can be used to join sheets of 347h stainless steel. Forging, upsetting, and other hot work operations can be carried out between 1149 and 1232 °C. Coil made to ASTM A240 Type 347 provides good creep resistance up to 1500°F.
When used in applications where the temperature ranges from 2100°F to 2250°F, it offers good corrosion resistance. And to reach its maximum hardness, it must be annealed and quenched in water. Strips made to ASTM A240 Gr 347 are helpful for annealing box lids, jet engine parts, airplane exhaust stacks, and other purposes. SA240 Type 347 perforated sheet is made through the method of “die and punch” perforating. The passing sheet has holes punched into it by a sheet with needles that are continuously applied to it. The surface is polished, and the leftover fragments from the punching are sheared off. A little more durable than SA240 304 foil is SA240 347H foil. Slow speeds and constant positive feeds can reduce its hardenability.
Equivalent Grades Of Stainless Steel 347 Plate
STANDARD | WERKSTOFF NR. | UNS | JIS | GOST | EN |
SS 347 | 1.4550 | S34700 | SUS 347 | 08Ch18N12B | X6CrNiNb18-10 |
SS 347H | 1.4961 | S34709 | SUS 347H | – | X6CrNiNb18-12 |
Chemical Composition of SS 347 Sheet
Grade | C | Mn | Si | P | S | Cr | Cb | Ni | Fe |
SS 347 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 20.00 | 10xC – 1.10 | 9.00 – 13.00 | 62.74 min |
SS 347H | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 8xC – 1.10 | 9.0 -13.0 | 63.72 min |
Mechanical Properties of SS 347H Plate
Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
8.0 g/cm3 | 1454 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
347 Stainless Steel Sheets Plate Thickness Tolerance Chart
Gauge | LB/Sq. Ft. | LB/Sq In. | Plate Gauge Tolerance | ||
---|---|---|---|---|---|
72″ Wide | 96″ Wide | ||||
3/16 | 0.1875 | 8.579 | 0.05958 | +.045″ -.010″ | +.050″ -.010″ |
7/32 | 0.2187 | 9.870 | 0.06854 | ||
1/4 | 0.2500 | 11.162 | 0.07750 | ||
5/16 | 0.3125 | 13.746 | 0.09546 | ||
3/8 | 0.3750 | 16.496 | 0.11456 | +.055″ -.010″ | +.060″ -.010″ |
7/16 | 0.4375 | 19.080 | 0.13250 | ||
1/2 | 0.5000 | 21.633 | 0.15044 | ||
9/16 | 0.5625 | 24.247 | 0.16838 | ||
5/8 | 0.6250 | 26.831 | 0.18633 | ||
11/16 | 0.6875 | 29.415 | 0.20427 | ||
3/4 | 0.7500 | 32.123 | 0.22308 | +.060″ -.010″ | +.065″ -.010″ |
13/16 | 0.8125 | 34.707 | 0.24102 | ||
7/8 | 0.8750 | 37.291 | 0.25897 | ||
15/16 | 0.9375 | 39.875 | 0.27691 | ||
1 | 1.0000 | 42.665 | 0.29628 | +.070″ -.010″ | +.075 -.010″ |
1-1/8 | 1.1250 | 47.833 | 0.33217 | ||
1-1/4 | 1.2500 | 53.001 | 0.36806 | ||
1-3/8 | 1.3750 | 58.169 | 0.40395 | ||
1-1/2 | 1.5000 | 63.337 | 0.43984 | ||
1-3/4 | 1.7500 | 73.672 | 0.51161 | ||
2 | 2.0000 | 84.008 | 0.58339 | +.125″ -.010″ | +.150″ -.010″ |
2-1/8 | 2.1250 | 89.610 | 0.62229 | ||
2-1/4 | 2.2500 | 94.777 | 0.65817 | ||
2-1/2 | 2.5000 | 105.113 | 0.72995 | ||
2-3/4 | 2.7500 | 115.449 | 0.80173 | ||
3 | 3.0000 | 126.301 | 0.87709 | +.150″ -.010″ | +.160″ -.010″ |
3-1/2 | 3.5000 | 146.972 | 1.02064 | ||
4 | 4.0000 | 168.264 | 1.16850 | +.180″ -.010″ | +.200″ -.010 |
347H Stainless Steel Sheets Plate Thickness Chart In Mm
Plate Thickness (mm) |
Plate Weight (kg/m2) |
---|---|
2.0 | 15.7 |
1.6 | 12.6 |
3 | 23.6 |
2.5 | 19.6 |
3.2 | 25.1 |
5 | 39.3 |
4 | 31.4 |
6 | 47.1 |
10 | 78.5 |
8 | 62.8 |
12.5 | 98.1 |
20 | 157 |
15 | 118 |
22.5 | 177 |
30 | 236 |
25 | 196 |
32 | 251 |
40 | 314 |
35 | 275 |
45 | 353 |
55 | 432 |
50 | 393 |
60 | 471 |
70 | 550 |
65 | 510 |
75 | 589 |
250 | 1963 |
90 | 707 |
80 | 628 |
150 | 1178 |
100 | 785 |
120 | 942 |
110 | 864 |
130 | 1051 |
180 | 1413 |
160 | 1256 |
200 | 1570 |
SS 347 Sheets and Plates Thickness Tolerance
Plate Width (w), in. [mm] |
||||
---|---|---|---|---|
Specified Thickness (t), in. [mm] | w > 144 [ 3658] | 84 [2134] < w ≤ 120 [3048] | w ≤ 84 [2134] | 120 [3048] < w ≤ 144 [3658] |
Tolerance Over Specified Thickness, *** in. [mm] |
||||
3/4 [19.05] ≤ t < 1 [25.04] | 0.100 [2.54] | 0.065 [1.65] | 0.060 [1.52] | 0.085 [2.16] |
8 [203.2] ≤ t < 10 [254.0] | 0.550 [14.0] | 0.335 [8.50] | 0.315 [8.00] | 0.435 [11.0] |
2 [ 50.80] ≤ t < 3 [76.20] | 0.200 [5.08] | 0.150[3.80] | 0.125 [3.20] | 0.175 [4.45] |
3/16 [4.76] ≤ t < 3/8 [9.52] | -- | 0.050 [1.27] | 0.045 [1.14] | 0.085 [2.16] |
t < 3/16 [4.76] | -- | 0.070 [1.78] | 0.055 [1.35] | -- |
1 [25.40] ≤ t < 2 [50.80] | 0.115 [2.92] | 0.075 [1.90] | 0.070 [1.78] | 0.095[2.41] |
4 [101.6] ≤ t < 6 [152.4] | 0.355 [9.02] | 0.200 [5.08] | 0.180 [4.75] | 0.335 [8.50] |
3 [76.20] ≤ t < 4 [101.6] | 0.225 [5.72] | 0.160 [4.06] | 0.150 [3.81] | 0.200 [5.08] |
6 [152.4] ≤ t < 8 [203.2] | 0.435 [11.0] | 0.255 [6.48] | 0.235 [6.00] | 0.355 [9.02] |
SS 347H Sheets & Plate Standard Size Chart
2000MM X 1000MM X 3MM | 2000MM X 1000MM X 6MM |
2500MM X 1250MM X 4MM | 2500MM X 1250MM X 8MM |
3000MM X 1500MM X 3MM | 3000MM X 1500MM X 6MM |
3000MM X 1500MM X 4MM | 3000MM X 1500MM X 8MM |
2000MM X 1000MM X 5MM | 2500MM X 1250MM X 10MM |
2500MM X 1250MM X 3MM | 2500MM X 1250MM X 6MM |
4000MM X 2000MM X 3MM | 4000MM X 2000MM X 6MM |
2500MM X 1250MM X 5MM | 3000MM X 1500MM X 10MM |
2000MM X 1000MM X 4MM | 2000MM X 1000MM X 8MM |
4000MM X 2000MM X 4MM | 2000MM X 2000MM X 10MM |
3000MM X 1500MM X 5MM |
Different Types of Stainless Steel 347 Sheet

SS 347, 347H Sheets
- SUS 347 Sheets
- ASTM A240 TP347H Stainless Steel Sheet
- 347 SS Sheets
- ASME SA240 TP347 SS Sheets
- Stainless Steel 347 HR Sheets
- 347H Stainless Steel Sheet

SS 347, 347H Plates
- Stainless Steel 347 Hot Rolled Plate
- SUS 347H Plates
- 347 SS Plates
- 347 Stainless Steel Plate
- 347H SS Cold Rolled Plate
- ASTM A240 TP347 Stainless Steel Plate
- ASME SA240 TP347H SS Plates

SS 347, 347H Chequered Plates
- 347H SS Chequered Plates
- 347 SS Cold Rolled Chequered Plate
- Stainless Steel 347H HR Chequered Plates
- ASTM A240 TP347 Stainless Steel Chequered Plate
- Stainless Steel 347H Chequered Plate

SS 347, 347H Beams
- 347 SS I Beam
- 347 Stainless Steel T Beams
- 347H SS Beams
- Stainless Steel 347H Beams
- Stainless Steel 347H H Beams
- 347 Stainless Steel Beam
- 347 Stainless Steel Beams

SS 347, 347H Angles
- Stainless Steel 347H L Shape Angles
- 347 SS Angles
- Stainless Steel 347H Angles
- 347 Stainless Steel Angle
- 347 Stainless Steel Unqual Leg Angle
- 347 SS Unqual Angle

SS 347, 347H Channels
- Stainless Steel 347H Channels
- 347H Stainless Steel C Shape Channel
- 347 Stainless Steel Channel
- Stainless Steel 347 U Shape Channel
- 347 SS Channels
- 347H SS Miscellaneous Channels
Specialized in Following SS 347H Plate
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- SS 1.4550 Sheet Plates
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- Stainless Steel 347 Sheet Weight Calculator
Applications of Stainless Steel 347 Sheet
We Export SS 347H Plate Across the Globe
Sweden, Lebanon, Oman, China, Argentina, France, Libya, Italy, Japan, Azerbaijan, Belarus, Switzerland, Mexico, Gambia, Namibia, India, Brazil, Greece, Egypt, Finland, Nigeria, Lahore, Algeria, Belgium, Malaysia, Israel, Poland, Serbia, Colombia, Portugal, Czech Republic, Philippines, Spain, Australia, Nepal, Jordan, Iran, New Zealand, United Kingdom, Sri Lanka, Pakistan, Bhutan, Angola, Croatia, Bulgaria, Tunisia, Taiwan, Ghana, Hong Kong, Estonia, Lithuania, Indonesia, Peru, Bahrain, Iraq, Macau, Russia, Thailand, Ecuador, Norway, United Arab Emirates, Kazakhstan, Chile, Puerto Rico, Algiera, Kuwait, Austria, Mongolia, Saudi Arabia, Vietnam, Slovakia, United States, Canada, Qatar, Yemen, Netherlands, Costa Rica, Romania, Gabon, Germany, Hungary, Bangladesh, Venezuela, Ireland, Singapore, South Africa, Ukraine, Bolivia, Morocco, Tibet, Zimbabwe, Afghanistan, columbia, South Korea, Turkey, Denmark, Kenya, Trinidad & Tobago.
Domestic Supply Stainless Steel 347 Sheet
Ranchi, Ahmedabad, Thiruvananthapuram, Gurgaon, Thane, Ernakulam , Hyderabad, Rajkot, Pimpri-Chinchwad, Surat, Noida, mumbai, Navi Mumbai, Chandigarh, New Delhi, Bengaluru, Haryana, Howrah, Secunderabad, Ludhiana, Indore, Jamshedpur, Jaipur, Nashik, Pune, Chennai, Faridabad, Kolkata, Kanpur, Bhopal, Visakhapatnam, Nagpur.