446 Stainless Steel Pipe

446 Stainless Steel Pipe

ASTM A312 TP 446 Seamless pipe and 446 stainless steel tubing supplier in India

ASTM A268 TP446 Tube and DIN 1.4762 Welded Pipe manufacturer and exporter in India

SS 446 pipe is a ferritic non heat treatable stainless steel that provides good resistance to high temperature oxidation and corrosion. It can be easily welded by using most of the traditional methods except oxyacetylene welding. The machinability is possible at slow speeds with positive feeds, sharp tooling surfaces and rigid mounts. ASTM A268 Tp446 forging can be started at 1149°C and completed at 871°C. In order to gain grain refinement and room temperature embrittlement the last 10% of forging has to be performed below 871°C. Due to the high level of chromium content it is difficult to cold work as compared to other stainless steel. ASTM A268 Tp446-1 annealing has to be soaked at 816 °C and then water quenched and at any time the temperature should not exceed 900 °C and cooling slow below 649. It is used in applications such as annealing boxes, furnace parts, oil burner components, boiler baffles, glass moulds etc. 446 Stainless Steel Pipe hot working has to be performed at the range between 1093-1177 °C. And the last 10% of hot working should be performed below 871 °C to gain grain refinement. 446 Seamless Pipe has better pressure capacity, high strength compared to welded pipe. So it is widely used in thermal, high pressure equipment and boiler industries. And the easiest way to check whether the pipe is seamless or welded pipe is to simply check the stencil on the surface of the pipe

446 Stainless Steel Pipe Specification Format

Alloy 446 Specification Stainless Steel 446, Stainless Steel UNS S44600
SS 446 Pipe 446 Stainless Steel Pipe
WERKSTOFF NR. 1.4762 / 1.4763 SS 446 Seamless Pipe Size 4 to 219mm W. T.: 0.5 to 20mm
Stainless Steel 446 Welded Pipe Size 5.0 mm – 1219.2 mm
SS 446 EFW Pipe size 5.0 mm – 1219.2 mm
446 Stainless Steel Pipe Swg & Bwg 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg.
A269 stainless steel Pipe Schedule SCH5, SCH10, SCH10S, SCH20, SCH30, SCH40, SCH40S, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
SS 446 Swg & Bwg 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg.
446 Stainless Steel Tube wall thickness 0.020" –0.220", (special wall thicknesses available)
WERKSTOFF NR. 1.4762 / 1.4763 Length Single Random, Double Random, Standard & Cut length Pipe & Tube
SS UNS S44600 Finish Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF
ASTM A312 TP 446 Stainless Steel Form Round, Hydraulic, ‘U’ bent or Hollow,LSAW, Boiler, Straight Pipe, Clad Pipe, Rectangular, Square Pipe Etc
Stainless Steel 446 Type Welded, Seamless, ERW, EFW, Fabricated Pipe, ‘U’ bent or Hollow, Hydraulic, LSAW, Boiler, Straight Tube, Tube Coil, Round, Rectangular, Square Tube etc
WERKSTOFF NR. 1.4762 / 1.4763 End Plain End, Beveled End, Treaded Pipe
WERKSTOFF NR. 1.4762 / 1.4763 SS 446 Marking All 446 Stainless Steel Pipe are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer’s request.)
Stainless Steel UNS S44600 Value Added Service Draw & Expansion as per required Size & Length, Polish (Electro & Commercial) Annealed & Pickled Bending, Machining Etc.
446 Steel Specialize in
  • ASTM A312 Stainless Steel Large Diameter Pipe
  • Alloy 446 Capillary Tube
  • ASTM A 312 SS 446 Heat Exchanger &
  • ASTM A 358 SS 446 Condenser Tube
ASTM A 312 SS 446 Test Certificate Manufacturer Test Certificate
Laboratory Test Certificate from Govt. Approved Lab.
Under Third Party Inspection
We can also cut, thread, and groove 446 Stainless Steel Pipe to meet your specifications. Pipe Dimension ANSI/ ASME B36.10, B36.19, B2.1

ASTM A268 TP446 Tubing Price List

Type Description USA FOB Price Malaysia FOB Price Europe FOB Price Singapore FOB Price Saudi Arabia (KSA) FOB Price
    Unit Per mtr Unit Per mtr Unit Per mtr Unit Per mtr Unit Per mtr
446 Stainless Steel Pipe Size : 12"NB x SCH.10S US $ 66.65 Malaysia Ringgit 271.27 Euro 55.99 Singapore Dollar 89.31 Saudi Riyal 249.94

Most Common Types Of DIN 1.4762 Welded Pipe

446 stainless steel pipe
ASTM A268 TP446 Seamless Tube
446 seamless Pipe
446 Stainless Steel ERW Pipe
DIN 1.4762 Welded pipe
446 Stainless Steel Welded Pipe

SS 446 pipe Tolerances

Stainless Steel 446 Tube OD Stainless Steel 446 Tube Tolerance
4mm to 35mm +/- 0.08mm
35mm to 38mm +/- 0.15mm
38mm to 60mm +/- 0.20mm
60mm and above +/- 0.25mm

446 Stainless Steel Pipe Dimension Chart

Pipe Size
(in)
Diameter
(in)
mm
Nominal Thickness
(in)

mm
Transverse Areas
(in2)
mm2
Length of Pipe
(ft per sq. foot of surface)
Volume
(ft3/ft)
Weight Number of Threads per inch of Screw
External Internal External Internal Steel External Surface
(ft)
Internal Surface
(ft)
(lb/ft) (kg/m)
1/8 0.405 0.27 0.07 0.13 0.06 0.07 9.43 14.20 0.0004 0.24 0.36 27
¼ 0.540 0.36 0.09 0.23 0.10 0.13 7.07 10.49 0.0007 0.42 0.63 18
3/8 0.675 0.49 0.09 0.36 0.19 0.17 5.66 7.75 0.0013 0.57 0.84 18
½ 0.840 0.62 0.11 0.55 0.30 0.25 4.55 6.14 0.0021 0.85 1.26 14
¾ 1.050 0.82 0.11 0.87 0.53 0.33 3.64 4.64 0.0037 1.13 1.68 14
1 1.315 1.05 0.13 1.36 0.86 0.49 2.90 3.64 0.0060 1.68 2.50 11 ½
1 ¼ 1.660 1.38 0.14 2.16 1.50 0.67 2.30 2.77 0.0104 2.27 3.38 11 ½
1 ½ 1.900 1.61 0.15 2.84 2.04 0.80 2.01 2.37 0.0141 2.72 4.04 11 ½
2 2.375 2.07 0.15 4.43 3.36 1.08 1.61 1.85 0.0233 3.65 5.43 11 ½
2 ½ 2.875 2.47 0.20 6.49 4.79 1.70 1.33 1.55 0.0333 5.79 8.62 8
3 3.500 3.07 0.22 9.62 7.39 2.23 1.09 1.25 0.0513 7.58 11.27 8
3 ½ 4.000 3.55 0.23 12.56 9.89 2.68 0.95 1.08 0.0687 9.11 13.56 8
4 4.500 4.03 0.24 15.90 12.73 3.17 0.85 0.95 0.0884 10.79 16.06 8
5 5.563 5.05 0.26 24.30 20.00 4.30 0.69 0.76 0.1389 14.61 21.74 8
6 6.625 6.07 0.28 34.47 28.89 5.58 0.58 0.63 0.2006 18.97 28.23 8
8 8.625 7.98 0.32 58.42 50.02 8.40 0.44 0.48 0.3552 28.55 42.49 8
10 10.750 10.02 0.37 90.76 78.85 11.90 0.36 0.38 0.5476 40.48 60.24 8
12 12.750 11.94 0.41 127.64 111.90 15.74 0.30 0.32 0.7763 53.60 79.77 8
14 14.000 13.13 0.44 153.94 135.30 18.64 0.27 0.28 0.9354 63.00 93.75 8
16 16.000 15.00 0.50 201.05 176.70 24.35 0.24 0.25 1.2230 78.00 116.08 8
18 18.000 16.88 0.56 254.85 224.00 30.85 0.21 0.23 1.5550 105.00 156.26 8
20 20.000 18.81 0.59 314.15 278.00 36.15 0.19 0.20 1.9260 123.00 183.05 8
24 24.000 22.63 0.69 452.40 402.10 50.30 0.16 0.17 2.7930 171.00 254.48 8

446 seamless Pipe Weight per kg

Nominal size [inches] Outside diameter [inches] Outside diameter [mm] Wall thickness [inches] Wall thickness [mm] Weight [lb/ft] Weight [kg/m]
4 4,500 114,3 0,438 11,13 19,00 28,32
5 5,563 141,3 0,500 12,7 27,04 40,28
6 6,625 168,3 0,562 14,27 36,39 54,20
8 8,625 219,1 0,719 18,26 60,71 90,44
10 10,750 273,0 0,844 21,44 89,29 133,06
12 12,750 323,8 1,000 25,4 125,49 186,97
14 14,000 355,6 1,094 27,79 150,79 224,65
16 16,000 406,4 1,219 30,96 192,43 286,64
18 18,000 457,0 1,375 34,93 244,14 363,56
20 20,000 508,0 1,500 38,10 296,37 441,49
22 22,000 559,0 1,625 41,28 353,61 527,02
24 24,000 610,0 1,812 46,02 429,39 640,03

ASTM A268 TP446 Pipe Pressure Rating

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

446 seamless Pipe Size Chart

Wall Sizes ( O.D.)
.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"

Chemical Structure of 446 stainless steel tubing

Grade C Mn Si P S Cr MO Ni N
446 min. 23.0 0.10
max. 0.20 1.5 0.75 0.040 0.030 30.0 0.50 0.25

DIN 1.4762 Welded Pipe Mechanical Characteristics

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
446 485 275 20 92 201

ASTM A268 TP446 Tube Equivalent Material

Grade UNS No Old British Euronorm Swedish SS Japanese JIS
BS En No Name
446 S44600 1.4762 / 1.4763

ASTM A268 TP446 Stainless Steel Seamless / Welded Tube manufacturers in India

446 stainless steel tubing manufacturer