Stainless Steel SA312 TP304H Pipe Suppliers, SS 304H Pipe Stockholder
Stainless Steel 304H Pipe Stockholder, SCH40 304H Stainless Steel Pipe Manufacturer
SS 304H ERW Pipe Dealers In Mumbai, ASTM A312 TP304H

304H Stainless Steel Pipe

Seamless 304H Pipe

304H Welded Pipe
Pipes manufactured at FASTWELL including 304H Stainless Steel Pipe and all its variants are suitable for Aerospace, Plant manufacturing, Machine engineering, Power generation and Nuclear Power Plant industry. We are supplying high quality 304H SS Pipe to our clients in mumbai, India and worldwide Europe,UK,USA,Canada,Asia,Dubai,Saudi Arabia, Middle East,West Africa.
There are some international standards which we follow are listed here –
1. ASTM- American Society for Testing and Materials
2. ASME- American Society of Mechanical Engineers,
3. AISI- American Iron and Steel Institute,
4. UNI- Ente Nazionale Italiano di Unificazione,
5. GOST- State Standards of Soviet, European,
6. DIN- Deutsches Institut für Normung,
7. BS- British Standards and JIS- Japanese Industrial Standards.
The crystal structure of SS UNS S30409 makes it non-magnetic and less brittle at lower temperatures. Moreover for the addition of higher hardness and strength, carbon is mixed up in this. Additional chemical, mechanical or physical properties need to be considered in case of TP304H SS Welded Pipe in order to achieve the overall service performance requirements. This ASTM A312 TP 304H SS also comes under the category of marine grade steel because of its ability to resist saltwater corrosion.
Table of contents
ASTM A312 304H Pipe Price
1/8" SS 304 Seamless Pipe Price in India : USD $15-201/4" SS 304 ERW/Welded Pipe Price in India : USD $4-8
3/4" SS 304 EFW Pipe Price in India : USD 18-25
Click here for complete (products, grade & size wise)
SS 304H Hollow Pipes Specification
304H Stainless Steel Pipe Length | Single Random, Double Random & Cut Length. |
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SS 304H Pipe Specification | ASTM A358 , ASTM A312 , ASME SA358 |
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304H Stainless Steel Welded Pipe size | 5.0 mm – 1219.2 mm |
Material Test Certificates (MTC) | Material Test Certificates (MTC) as per EN 10204/ 3.1B and EN 10204 3.2 |
Round Stainless Steel 304H PipeRegular Stock | 16, 17, 18, 19, 20, 21, 22, 23, 25, 28, 31.8, 35, 36, 38.1, 48, 50.8, 60, 63.5, 76.2, 89, 101, 114 mm |
Square Stainless Steel 304H PipeRegular Stock | 17, 18, 19, 20, 21, 22, 23, 24, 25, 28, 30, 36, 38, 50 mm |
SS 304H EFW Pipe size | 5.0 mm – 1219.2 mm |
Thickness | exact 0.25, 0.28, 0.32, 0.37, 0.41, 0.51, 0.61, 0.71, 0.91, 1.11, 1.15, 1.41 mm |
304H Stainless Steel Pipe Schedule | SCH5, SCH10, SCH40, STD, SCH80, SCH160 |
SS 304H Pipe End | Plain End, Beveled End, Treaded. |
SS 304H Seamless Pipe size | 4 to 219mm W. T.: 0.5 to 20mm |
Origin | Korean, European , US, Indian (Strictly No Chinese Material), Japanese, Russian |
Marking | All Stainless Steel 304H Pipes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer’s request.) |
Stainless Steel 304H Pipe Finish | BA (Bright & Annealed), Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF |
304H Stainless Steel Pipe Form | Rectangular, Round , Straight Pipes , Square, Hollow, HydraulicEtc. |
Our Presence | Poland, Malaysia, USA , Singapore, Canada, Australia, UK, Iran, Italy, UAE |
Rectangle Stainless Steel 304H Pipe Regular Stock | 10*30, 10*40, 10*50, 20*10, 23*11, 24*12, 25*13, 28*25, 28*13, 29*14, 30*15, 30*20, 30*22, 34*22, 36*23, 50*25, 60*30, 75*45, 95*45 mm |
Specialized in | Large Diameter SS 304H Pipe |
We can also cut, thread, and groove 304H Stainless Steel Pipes to meet your specifications, click here for 304H Jindal stainless steel pipe price list |
304H Stainless Steel Pipe Types | Out diameter | Wall thickness | Length |
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NB Sizes (in stock) | 1/8” ~ 8” | SCH 5 / SCH 10 / SCH 40 / SCH 80 / SCH 160 | Upto 6 Meters |
304H Stainless Steel Welded Pipe (in Stock + Custom Sizes) | 5.0mm ~ 1219.2mm | 1.0 ~ 15.0 mm | Upto 6 Meters |
304H Stainless Steel Seamless Pipe (Custom Sizes) | 5.0mm ~ 203.2mm | As per requirement | Upto 6 Meters |
WERKSTOFF NR. 1.4948 Seamless Pipe Types

ASTM A312 Seamless Pipes

304H Stainless steel Lined Pipes

304H Stainless steel Exhaust Pipes

304H Stainless steel Pipes material

WERKSTOFF NR. 1.4948 Weld Pipes

304H Stainless steel Flex Pipes

WERKSTOFF NR. 1.4948 Square Pipes

304H Stainless steel Hollow Pipes

304H SS Clad Pipes

304H Stainless steel Rectangle Pipes

WERKSTOFF NR. 1.4948 Square Pipes (Radius Corners)

SS UNS S30409 Welded Pipes
Types of 304H Stainless Steel Seamless & Welded Pipe
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304H Stainless Steel Pipe composition & technical information
304H Stainless Steel Pipes Chemical Composition
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
304H | min. | – | – | – | – | – | 18.0 | – | 8.0 | – |
max. | 0.10 | 2.0 | 0.75 | 0.045 | 0.03 | 20.0 | 10.5 | – |
TP304H SS Pipe Mechanical Properties
Stainless Steel 304H Pipe Yield Strength
Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
Rockwell B (HR B) max | Brinell (HB) max | ||||
304H | 515 | 205 | 40 | 92 | 201 |
Stainless Steel 304H Pipe Physical Properties
Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (m/m/0C) | Thermal Conductivity (W/m.K) | Specific Heat 0-1000C (J/kg.K) | Electrical Resistivity (n.m) | |||
0-1000C | 0-3150C | 0-5380C | at 1000C | at 5000C | |||||
304H | 8000 | 193 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 | 500 | 720 |
Equivalent Grades for 304H Stainless Steel Pipe
Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
BS | En | No | Name | ||||
304H | S30409 | 304S11 | 58E | 1.4948 | X5CrNi18-10 | 2332 | SUS 304H |
Stainless Steel 304H Pipe Sizes
Wall | Sizes ( O.D.) |
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.010 | 1/16" , 1/8" , 3/16" |
.020 | 1/16" , 1/8" , 3/16" , 1/4" , 5/16" , 3/8" |
.012 | 1/8" |
.016 | 1/8" , 3/16" |
.028 | 1/8" , 3/16" , 1/4" , 5/16" , 3/8" , 1/2" , 3/4" , 1" , 1 1/2" , 2" |
.035 | 1/8" , 3/16" , 1/4" , 5/16" , 3/8" , 7/16" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 2" , 2 1/4" |
.049 | 3/16" , 1/4" , 5/16" , 3/8" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/8" , 1 1/4" , 1 1/2" , 1 5/8" , 2" , 2 1/4" |
.065 | 1/4" , 5/16" , 3/8" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 1 3/4" , 2" , 2 1/2" , 3" |
.083 | 1/4" , 3/8" , 1/2" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 1 7/8" , 2" , 2 1/2" ,3" |
.095 | 1/2" , 5/8" , 1" , 1 1/4" , 1 1/2" , 2" |
.109 | 1/2" , 3/4" , 1" , 1 1/4" , 1 1/2" , 2" |
.120 | 1/2" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 2" , 2 1/4" , 2 1/2" , 3" |
.125 | 3/4" , 1" , 1 1/4" , 1 1/2" , 2" , 3" , 3 1/4" |
.134 | 1" |
.250 | 3" |
.375 | 3 1/2" |
SS UNS S30409 Pipe Stock
Stainless Steel 304H Pipe Types | OD | WT | Finish |
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304H Stainless Steel Round Pipe | 6mm-630mm | 0.3mm-30mm | 2B,400#Bright, Brushed (180#,220#,240#,320#400#,600#), Hairline, 8K Mirror, etc |
304H Stainless Steel Square Pipe | 8*8mm to 300*300mm | 0.3mm-30mm | 2B,400#Bright, Brushed (180#,220#,240#,320#400#,600#), Hairline, 8K Mirror, etc |
304H Stainless Steel Rectangular Pipe | 10*20mm~100*200mm | 0.3mm-30mm | 2B,400#Bright, Brushed (180#,220#,240#,320#400#,600#), Hairline, 8K Mirror, etc |
304H Stainless Steel Wood Colour Pipe | Can be customised | Can be customised | - |
304H Stainless Steel Single Slot Pipe | 38.1-76.2mm | 1.0mm-2.0mm | 2B,400#Bright, Brushed (180#,220#,240#,320#400#,600#), Hairline, 8K Mirror, etc |
304H Stainless Steel Double Slot Round Pipe | 38.1-76.2mm | 1.0mm-2.0mm | 2B,400#Bright, Brushed (180#,220#,240#,320#400#,600#), Hairline, 8K Mirror, etc |
304H Stainless Steel Signal Slot Oval Pipe | Size:40-110mm | 1.0mm-2.0mm | 2B,400#Bright, Brushed (180#,220#,240#,320#400#,600#), Hairline, 8K Mirror, etc |
304H Stainless Steel Signal Slot Rectangular Pipe | Slot Width and Height: 10mm- 30mm | 1.0mm-2.0mm | 2B,400#Bright, Brushed (180#,220#,240#,320#400#,600#), Hairline, 8K Mirror, etc |
304H Stainless Steel Double Slot Square Pipe | Slot Width and Length: 10mm -30mm | 1.0mm-2.0mm | 2B,400#Bright, Brushed (180#,220#,240#,320#400#,600#), Hairline, 8K Mirror, etc |
304H Stainless Steel Oval Pipe | Sizes :4mm (short distance) ~ 270mm (Long Distance) | 1.0mm -3.0mm | 2B,400#Bright, Brushed (180#,220#,240#,320#400#,600#), Hairline, 8K Mirror, etc |
304H Stainless Steel Triangle Pipe | Side Length: 16mm – 85mm | 0.5mm-3.0mm | 2B,400#Bright, Brushed (180#,220#,240#,320#400#,600#), Hairline, 8K Mirror, etc |
304H Stainless Steel Hexagonal Pipe | Side Length: 13mm – 85mm | 0.5mm-1.8mm | 2B,400#Bright, Brushed (180#,220#,240#,320#400#,600#), Hairline, 8K Mirror, etc |
304H Stainless Steel Handrail Pipe | – | 1.0-1.8 | 2B,400#Bright, Brushed (180#,220#,240#,320#400#,600#), Hairline, 8K Mirror, etc |
304H Stainless Steel Flat Oval Pipe | 2.3*10.3—63*175 | 1.0—1.8 | 2B,400#Bright, Brushed (180#,220#,240#,320#400#,600#), Hairline, 8K Mirror, etc |
304H Stainless Steel Fan Shaped Pipe | 11*10*R15—80*80*R50 | 1.0—1.8 | 2B,400#Bright, Brushed (180#,220#,240#,320#400#,600#), Hairline, 8K Mirror, etc |
304H Stainless Steel Stainless Steel Arched Shaped Pipe | 15*22—35*75 | 1.0—1.8 | 2B,400#Bright, Brushed (180#,220#,240#,320#400#,600#), Hairline, 8K Mirror, etc |
304H Stainless Steel thin-wall ASTM A270 | 22mm-108mm | 0.7-2.0 | 2B,400#Bright, Brushed (180#,220#,240#,320#400#,600#), Hairline, 8K Mirror, etc |
304H Stainless Steel Heat Exchange Pipe - ASTM A249 | Seamless Pipe: 12.7~76.2 x 0.5~6.35mm Welding Pipe: 12.7~76.2 x 0.5~3.175mm |
2B,400#Bright, Brushed (180#,220#,240#,320#400#,600#), Hairline, 8K Mirror, etc |
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304H Stainless Steel Pipe for the general equipment – ASTM A269 | WD :0.5mm-30mm | OD :10mm-300mm | 2B,400#Bright, Brushed (180#,220#,240#,320#400#,600#), Hairline, 8K Mirror, etc |
304H Stainless Steel Inner polished | Size :12.5mm – 203.2mm | 1.0mm – 5mm | 2B,400#Bright, Brushed (180#,220#,240#,320#400#,600#), Hairline, 8K Mirror, etc |
304H Stainless Steel Capillary Pipe | OD: 0.28mm -10mm | 0.08mm – 1.2mm | 2B,400#Bright, Brushed (180#,220#,240#,320#400#,600#), Hairline, 8K Mirror, etc |
304H Stainless Steel Seamless Pipe | Size: 6mm – 430mm | 0.8mm – 30mm | 2B,400#Bright, Brushed (180#,220#,240#,320#400#,600#), Hairline, 8K Mirror, etc |
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ASTM A312 TP 304H Pipe Pressure Rating
Ratings for standard seamless stainless steel 304H pipes, temperatures ranging 100°F to 750°F. All ratings in psig based on ANSI/ASME B 31.1.
SS Pipe Pressure Rating (psig) | ||||||||||
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SS Pipe Size(inches) | SS Pipe Schedule | Temperature(F) | ||||||||
100 | 200 | 300 | 400 | 500 | 600 | 650 | 700 | 750 | ||
1" | 40 | 3048 | 2629 | 2362 | 2171 | 2019 | 1924 | 1867 | 1824 | 1810 |
80 | 4213 | 3634 | 3265 | 3002 | 2791 | 2659 | 2580 | 2528 | 2501 | |
160 | 6140 | 5296 | 4759 | 4375 | 4068 | 3876 | 3761 | 3684 | 3646 | |
1 1/2" | 40 | 2257 | 1947 | 1750 | 1608 | 1496 | 1425 | 1383 | 1354 | 1340 |
80 | 3182 | 2744 | 2466 | 2267 | 2108 | 2009 | 1949 | 1909 | 1889 | |
160 | 4619 | 3984 | 3580 | 3291 | 3060 | 2916 | 2829 | 2772 | 2743 | |
2" | 40 | 1902 | 1640 | 1474 | 1355 | 1260 | 1201 | 1165 | 1141 | 1129 |
80 | 2747 | 2369 | 2129 | 1957 | 1820 | 1734 | 1682 | 1648 | 1631 | |
160 | 4499 | 3880 | 3486 | 3205 | 2980 | 2840 | 2755 | 2699 | 2671 | |
3" | 40 | 1806 | 1558 | 1400 | 1287 | 1196 | 1140 | 1106 | 1084 | 1072 |
80 | 2553 | 2202 | 1979 | 1819 | 1691 | 1612 | 1564 | 1532 | 1516 | |
160 | 3840 | 3312 | 2976 | 2736 | 2544 | 2424 | 2352 | 2304 | 2280 | |
4" | 40 | 1531 | 1321 | 1187 | 1091 | 1014 | 967 | 938 | 919 | 909 |
80 | 2213 | 1909 | 1715 | 1577 | 1466 | 1397 | 1355 | 1328 | 1314 | |
160 | 3601 | 3106 | 2791 | 2566 | 2386 | 2273 | 2206 | 2161 | 2138 | |
5" | 40 | 1342 | 1158 | 1040 | 956 | 889 | 847 | 822 | 805 | 797 |
80 | 1981 | 1709 | 1535 | 1411 | 1312 | 1250 | 1213 | 1189 | 1176 | |
160 | 3414 | 2945 | 2646 | 2433 | 2262 | 2155 | 2091 | 2049 | 2027 | |
6 | 40 | 1219 | 1052 | 945 | 869 | 808 | 770 | 747 | 732 | 724 |
80 | 1913 | 1650 | 1483 | 1363 | 1267 | 1208 | 1172 | 1148 | 1136 | |
160 | 3289 | 2836 | 2549 | 2343 | 2179 | 2076 | 2014 | 1973 | 1953 | |
8" | 40 | 1073 | 926 | 832 | 765 | 711 | 678 | 657 | 644 | 637 |
80 | 1692 | 1459 | 1311 | 1205 | 1121 | 1068 | 1036 | 1015 | 1005 | |
160 | 3175 | 2738 | 2460 | 2262 | 2103 | 2004 | 1944 | 1905 | 1885 | |
10" | 40 | 974 | 840 | 755 | 694 | 645 | 615 | 596 | 584 | 578 |
80 | 1609 | 1388 | 1247 | 1147 | 1066 | 1016 | 986 | 966 | 56 | |
160 | 3147 | 2714 | 2439 | 2242 | 2085 | 1986 | 1927 | 1880 | 1868 |
1 psi (lb/in2) = 6,894.8 Pa (N/m2) = 6.895x10-2 bar