ASTM A268 TP 446 Stainless Steel Pipe Manufacturers

446 Seamless Tubing, 446 Stainless Steel Tube supplier and distributor

AISI TP 446-1, AISI 446 Stainless Steel Tube, SUS 446 Square Pipes exporter in India

ASTM A268 TP446
ASTM A268 TP446
446 Seamless Tubing
446 Seamless Tubing
AISI 446 Stainless Steel Tube
AISI 446 Stainless Steel Tube

ASTM A268 TP446 is a ferritic, non-heat treatable stainless steel that offers good resistance to high temperature corrosion and oxidation. ASTM A268 TP 446-1 Tubing can be easily welded using most of the traditional methods except oxyacetylene welding. Due to its elevated chromium content, AISI TP 446-1 Tube is more difficult than other stainless steels to bend, draw, spin and weld. 446 Stainless Steel Pipe is suitable to use between 1500 - 2100°F, although its elevated temperature strength is quite low. 446 Stainless Steel Tube is used for furnace parts, oil burners, heat exchangers, kiln liners, glass molds and stationary soot blowers in steam boilers.

We offer various sizes of 446 Stainless Tubing up to the biggest 4 inches in diameter in 20 feet long. AISI 446 Tube are available in bright polished finish. We supply 446 stainless steel welded square tubes up to the biggest 4 inches in wall opening in 20 feet long. SS 446 welded square tubes are available in both bright polished and hairline finish. We also stock stainless steel 446 welded rectangular tubes up to the biggest 4 inches in wall opening in 20 feet long. SS 446 welded rectangular tubes are available in both bright polished and hairline finish.

Steel Tubes India in renowned 446 Stainless Steel Pipe Manufacturers in India. We manufacture of all types on AISI 446 Stainless Steel Tube. We have supplied SS 446 Tube to Gasco, AISI 446 Pipe to Saudi Aramco, SUS 446 Polish Tube to Oman, SUS 446 Pipes to KNPC, ASTM A268 TP446 Seamless Pressure Tubing to Qatar Gas, SS 446 Pipe to Dubai, ASTM A268 TP 446 Stainless Steel High Pressure Tube to leading oil & gas company in Iraq, SS 446 U bend Tubes to South Africa, 446 Stainless Steel Seamless Tubes to North America, SUS 446 Instrumentation Tubes to United Kingdom and SS 446 Cold Rolled Coiled Tubing to UAE. We have more than 14 years of experience in supplying ASTM A268 TP446 Coiled Tubing & SS 446 Tubing. Our highly experienced team can help you to buy right AISI TP 446-1 EFW Tubes.

446 Stainless Steel Pipe Manufacturer in India

Are you hunting for the best 446 stainless steel pipe manufacturer in India? If you are, well then, your hunt is now over. You have now reached the website of the oldest and also the most reputed supplier of AISI 446 pipes in India. 446 stainless steel has high chromium content and because of this, it displays superb resistance to corrosion. Because of this, 446 stainless steel can be used in applications like electrodes, burners, heaters, metal-ceramic seals and nozzles. The Density of 446 stainless steel is 0.282 lb/in³ (7.80 g/cc). The Modulus of Elasticity of 446 stainless steel is 29000 ksi (200 GPa).

If you are looking to buy High quality assured ASTM A268 TP 446-1 capillary tube, AISI 446 Square Tubing or 446 Stainless Steel Polished Tube at best price in India, send an email to stindia@stindia.com, we will send you the Free Quote & recent price of SUS 446 precision tubes, AISI 446 Welded Tube, Stainless Steel 446 instrumentation tubes, 446 Stainless Steel Oval Tube along with inspection & delivery schedule. Steel Tubes India is a Govt. of India recognised Exporter of 446 Stainless Steel Mirror Tube in India and shipping to United Arab Emirates, Europe, United States, Egypt, Singapore, South Africa, Saudi Arabia, Philippines, Qatar, Ethiopia, Oman, Malaysia, Kuwait, Canada, Australia, New Zealand, United Kingdom, St. Helena, Nigeria, Ghana, Hong Kong, Ireland, Pakistan, South Korea, Iraq, Norway, Finland, Trinidad & Tobago, Netherlands, Denmark, Iran, Kenya, Sweden, Thailand, Indonesia, Belgium, Taiwan, Greece & Germany since 2002. SS 446 Needle Tube, SS 446 Round Tube and AISI 446 hydraulic tube are available in different sizes, diameter & wall thickness.

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Stainless Steel 446 Tube Price

Price of AISI 446 Seamless Tube ASTM A268 TP 316Ti : $ 7800 ~ $ 7900 USD/Ton
Price of SUS 446 ERW/Welded Tube ASTM A268 TP 316Ti : $ 7500 ~ $ 7600 USD/Ton
Price of SS 446 EFW Tube ASTM A268 TP 316Ti : $ 7100 ~ $ 7400 USD/Ton

ASTM A268 TP446 Stainless Steel Tube Specification

Stainless Steel 446 Tube Standards ASTM A268, ASTM A213, ASTM A249, ASTM A269, ASME SA268, ASME SA213, ASME SA249, ASME SA269, EN 10216-5 TC1 / TC2, PED 97/23/EC, AD 2000, NACE MR0175/ISO 15156
Stainless Steel 446 Seamless Tube Size 3.35 mm OD To 101.6 mm OD
Stainless Steel 446 Welded Tube Size 6.35 mm OD To 152 mm OD
Swg & Bwg 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg.
Stainless Steel 446 tubing wall thickness 0.020" –0.220", (special wall thicknesses available)
SS 446 tube Length Single Random, Double Random, Standard & Cut length
446 Stainless Steel Tube Finish Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF
Stainless Steel 446 tube Form Round, Coil, Square, Rectangular, Boiler, Hydraulic, Straight or ‘U’ bent Tubes, Hollow, LSAW Tubes Etc.
Stainless Steel 446 Tube Type Seamless, ERW, EFW, Welded, Fabricated
Electropolished (EP) Electropolished for Ultra High Purity Systems
Non-Electropolished (BA) Bright Annealed or (AP) Annealed & Pickled for High-Purity, (CFOS) Cleaned for Oxygen Grade Service or Corrosive Systems
I.D. Surface Finish Options 5, 7 & 10 µin. Ra
JIS 8A to 250A
Tolerances In accordance with: ASTM: A269 & A632, JIS: G 3459
446 stainless steel tubing End Plain End, Beveled End, Treaded, Ends are suitable for orbital welding
Marking All 446 Stainless Steel tubes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer’s request.)
446 stainless steel tubing Application Oil Tube, Gas Tube, Fluid Tube, Boiler and Heatexchanger
Value Added Service Draw & Expansion as per required Size & Length, Polish (Electro & Commercial) Annealed & Pickled Bending, Machining Etc.
Specialize in 446 Stainless Steel Capillary Tube & Other Odd Size 
AISI 446 Heat Exchanger & Condenser Tubes
SUS 446 Hydraulic tubing with OD up to 50.8 mm (2.0 in.) are delivered in bright annealed condition
446 Stainless Steel hydraulic tube with OD larger than 50.8 mm are supplied in the annealed and pickled condition, Or in polished condition
Marking & Traceability Each 446 Stainless Steel Tubing is traceable to its producing mill and heat by an identification number etched within 24" (610mm) of one end.
446 stainless steel tubing Test Certificate Manufacturer Test Certificate according to EN 10204 3.1 B
Laboratory Test Certificate from Govt. Approved Lab. 
Under Third Party Inspection
446 stainless steel tubing Testing & Inspection Visual inspection • Surface roughness measurement • Helium-leak testing • Scanning Electron Microscopy (SEM) • Auger Electron Microscopy (AES) • Election Spectroscopy for Chemical Analysis (ESCA or XPS) • Particle testing • Moisture testing
We can also cut, thread, and groove AISI TP 446-1 Tubes to meet your specifications

Stainless Steel 446 Tube Wall Thickness

028 = .028" Thick
035 = .035" Thick
039 = .039" Thick
049 = .049" Thick
065 = .065" Thick
083 = .083" Thick
109 = .109" Thick

446 Stainless Steel Tubing Tolerances

The Stainless Steel 446 tubes outer diameter (OD) are according to ASTM A269/A213. Stainless Steel 446 Tubing Tolerance specifications are as per below:

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 Manufacturers in India offer widest stock of ASTM A268 TP446 Seamless & welded Pipes & Tubes

446 Stainless Steel Coiled Tubing
446 Stainless Steel Coiled Tubing
AISI 446 Capillary Tube
AISI 446 Capillary Tube
SUS 446 U Shaped tubing
SUS 446 ‘U’ Shaped tubing
ASTM A268 TP446 S44600 High Chromium Ferritic Stainless Steel Tube
ASTM A268 TP446 S44600 High Chromium Ferritic Stainless Steel Tube
ASTM A268 TP446 seamless tubing
ASTM A268 TP446 seamless tubing
ASTM A268 TP446-1 Seamless Stainless Steel Tube
ASTM A268 TP446-1 Seamless Stainless Steel Tube
Stainless Steel 446 Furnace Tube
Stainless Steel 446 Furnace Tube
Uns S44600 A446 Stainless Steel Seamless Pipe
Uns S44600 A446 Stainless Steel Seamless Pipe
446 Stainless Steel Heat Exchanger Tubes
446 Stainless Steel Heat Exchanger Tubes
ASTM A268 TP446 Pipes & Tubes
ASTM A268 TP446 Pipes & Tubes
446 Stainless Steel welded tubing
446 Stainless Steel welded tubing
Stainless Steel 446 Square Tubing
Stainless Steel 446 Square Tubing
SS 446 Hollow Section
SS 446 Hollow Section
Stainless Steel 446 Rectangle Tube
Stainless Steel 446 Rectangle Tube
Stainless Steel 446 tubing
Stainless Steel 446 tubing

Types of Stainless Steel 446 Seamless & Welded Tubes

ASME SA268 TP446 Perforated Tube Din 1.4762 Material Tube
SA 688 TP446 Finned Tube SA268 TP446 Dom Tube
SS 446 Erw Pipe 446 Stainless Steel Instrumentation Tubing
SA 268 TP446 Seamless Tubing Polished 446 Stainless Steel Tubing
1.4762 Instrument Tubing 446 Stainless Steel Square Tubing
AISI 446 Stainless Steel Coil Tubing Stainless Steel 446 Seamless Pipe
SA268 TP446 Welded Tubes AISI 446 Seamless Tube
ASTM A268 TP446 Condenser Tube Stainless Steel 446 Welded Pipe & Tube
JIS SUS446 Seamless Tubes Din 1.4762 Stainless Steel Tube
ASTM A268 TP446 Coiled Tubing Stainless Steel Inox 446 Capillary Tubing
446 Stainless Steel Threaded Pipe SAE 446 Stainless Steel Rectangular Tube
Stainless Steel 446 Grade Pipe Type 446 Stainless Steel Polished Pipes
Schedule 10 Type 446 Stainless Steel Pipe Schedule 40 Type 446 Stainless Steel Pipe
Din 1.4762 AISI 446 Perforated Exhaust Tube Stainless Steel 446 Hypodermic Tubing
446 Stainless Steel Oval Tubing SS 446 Needle Tube
Stainless Steel 446 Ornamental Pipe Stainless Steel 446 Fin Tube / Finned Tube
S44600 Stainless Steel U Shaped Tube 446 Stainless Steel Square Tube Mirror Finish
Material 1.4762 Aisi 446 Slotted Handrail Tube SA268 TP446 Thin Wall Tube
SA268 TP 446 Thick Wall Tube En 1.4762 / AISI 446 Hydraulic Tubing
Ultra-High Purity Electropolished Stainless Steel 446 Tube Thin Wall S44600 Stainless Steel Pipe
SAE J405 Uns S44600 Thin Wall Tubing 446 Stainless Steel Metric Tubing
446 Stainless Steel Seamless Square Tubing Large Diameter 446 Stainless Steel Tube
High-pressure 446 Stainless Steel Water Pipe Stainless Steel 446 Hexagonal Pipe
Din W.-Nr. 1.4762 Aisi 446 Corrugated Tube Stainless Steel 446 Round Tube
Din 1.4762 Stainless Steel Welded Pipes ASTM A268 TP446 Coil Tubing Heat Exchanger
UNS S44600 Seamless Pipes Stainless Steel 446 Seamless Round Tubing
ASTM A268 TP446 Polished Tubing 446 Stainless Steel Ornamental Tube
SA268 TP446 erw 446 Stainless Steel Spiral Pipe
ASTM A268 TP446 straight tube 446 Stainless Steel Welded Tube
446 Stainless Steel ERW Pipes Corrugated 446 Stainless Steel Tube (CSST) for Gas
ASTM A268 TP446 Mirror Tube Jis 446 Stainless Steel Tubing
446 Stainless Steel Rectangular Pipe 446 Stainless Steel Hypodermic Tubing for Medical Needle
ASTM A268 gr TP 446 Aerospace tubes ASTM A268 TP446 Electric Fusion Welding Pipes
ASTM A268 TP446 Elliptical Tubes ASTM A268 SS TP 446 Stainless Steel Rectangular Tube
Din 1.4762 Material Seamless Tubing WERKSTOFF NR. 1.4762 Coaxial Tube

A268 TP 446-1 Tube Properties

UNS S44600 Tubing Properties

The Rockwell A Hardness of 446 stainless steel is 51.1. The Rockwell B Hardness of 446 stainless steel is 83. The Brinell Hardness of UNS S44600 is 159. 446 stainless steel Knoop Hardness is 173. The Vickers Hardness of UNS S44600 is 159. UNS S44600 tubing properties are that of 446 stainless steel. UNS S44600 tubing has good brightness, excellent weldability and has tremendous corrosion resistance. UNS S44600 Density is 0.282 lb/in³ (7.80 g/cm3). The Magnetic Permeability of UNS S44600 is 400 – 700. UNS S44600 has a Thermal Conductivity of 150 BTU-in/hr-ft²-°F (21.6 W/m-K).    

ASTM A268 TP446 Stainless Steel mechanical properties & chemical composition

446 Stainless Steel Tube Composition

446 stainless steel tube composition has WERKSTOFF number 1.4762. The Chemical Composition of 446 stainless steel is Carbon, C 0.20, Manganese, Mn 1.50, Iron, Fe 73, Sulfur, S 0.030, Chromium, Cr 23.0 - 27.0, Sulfur, S 0.030, Phosphorous, P 0.040, Silicon, Si 1.0 and Nickel, Ni 0.25. The Yield Strength (0.200%) of 446 stainless steel is 50000 psi (345 MPa). The Tensile strength of 446 stainless steel is 79800 psi (550 MPa). 446 stainless steel Poisson's ratio is 0.27-0.30. The Elastic Modulus of 446 stainless steel is 29000 ksi (200 GPa). 446 stainless steel Elongation at Break is 20%.

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
446 Stainless Tubing Mechanical Properties
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
AISI 446 Stainless Steel Tube 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
446 7500 200 9.9 11.4 11.6 24.9 28.7 460 570
Equivalent Grades for 446 Stainless Steel Tubes

AISI 446 pipe equivalent are mentioned in below table. ASTM A268 TP446 has a Rockwell A Hardness of 52.8 and a Rockwell B Hardness of 86. The Knoop Hardness of AISI TP 446-1 is 184. AISI 446 stainless steel has a Brinell Hardness of 169 and a Vickers Hardness of 169. The Elongation at Break of 446 Stainless Steel Tube is 25%. The Electrical Resistivity of SS 446 Pipe is 0.0000640 ohm-cm. The Specific Heat Capacity of SUS 446 Pipes is 0.460 J/g-°C 0.110 BTU/lb-°F. The Maximum Service Temperature is 2003 °F (1095 °C).

STANDARD WERKSTOFF NR. UNS JIS BS GOST AFNOR EN
SS 446 1.4762 S44600 SUS 446

SS 446 Pipe Melting Point & Welding

SS 446 pipe melting point & welding is that the Melting Point of SS 446 is 2597 - 2750 °F (1425 - 1510 °C). Welding of SS 446 can be done by using the traditional welding methods, except for oxyacetylene welding. The Ultimate Tensile Strength of SS 446 is 79800 psi (550 MPa). SS 446 has a Yield Tensile Strength of 50000 psi (345 MPa). The Reduction of Area of SS 446 is 45%. The Magnetic Permeability of SS 446 is 400 – 700. The Thermal Conductivity of SS 446 is 21.6 W/m-K (150 BTU-in/hr-ft²-°F).

Types Out diameter Sizes Length
NB Sizes (in stock) .0035” ~ 8” 1/8", 1/4", 3/8", 1/2", 5/8", 3/4", 1", 1.25", 1.5", 2", 2.5", 3", 4", 5", 6" Cut to length
Stainless Steel 446 Seamless Tube (Custom Sizes) 6.35 mm OD To 101.6 mm OD  As per requirement Cut to length
Stainless Steel 446 Welded Tube (ERW Tube) (in Stock + Custom Sizes) 6.35 mm OD To 152 mm OD As per requirement Cut to length

446 Seamless Tubes Surface Finish

Surface Finish Internal Surface(ID) Exterbal Surface(OD)
Roughness Average(RA) Roughness Average(RA)
μ inch μm μ inch μm
AP Annealed & Pickled Not defined Not defined 40 or Not defined 1.0 or Not defined
BA Beight Annealed 40,32,25,20 1.0,0.8,0.6,0.5 32 0.8
MP Mechanical Polish 40,32,25,20 1.0,0.8,0.6,0.5 32 0.8
EP Electro Polish 15,10,7,5 0.38,0.25,0.20;0.13 32 0.8

ASTM A268 TP446 Stainless Steel Tube Sizes

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"

ASTM A268 TP446 Stainless Steel Pipe Sizes

1/8" IPS(.405" O.D.) 3 1/2" IPS( 4.000" O.D.)
SCH 40, 80 SCH 10, 40, 80, 160, XXH
1/4" IPS(.540" O.D.) 4" IPS(4.500" O.D.)
SCH 10, 40, 80 SCH 10, 40, 80, 160, XXH
3/8" IPS(.675" O.D.) 5" IPS( 5.563" O.D.)
SCH 10, 40, 80 SCH 10, 40, 80, 160, XXH
1/2" IPS(.840" O.D.) 6" IPS(6.625" O.D.)
SCH 5, 10, 40, 80, 160, XXH SCH 5, 10, 40, 80, 120, 160, XXH
3/4" IPS(1.050" O.D.) 8 ” IPS(8.625" O.D.)
SCH 10, 40, 80, 160, XXH SCH 5, 10, 40, 80, 120, 160, XXH
1" IPS:(1.315′ O.D.) 10" IPS(10.750" O.D.)
SCH 5, 10, 40, 80, 160, XXH SCH 10, 20, 40, 80 (.500), TRUE 80(.500)
1-1/4" IPS(1.660" O.D.) 12" IPS(12.750" O.D.)
SCH 10, 40, 80, 160, XXH SCH 10, 20, 40(.375), TRUE40(.406), SCH80(.500)
1-1/2" IPS(1.900" O.D.) 14" IPS(14.000" O.D.)
SCH 10, 40, 80, 160, XXH SCH10 (.188), SCH40 (.375)
2" IPS(2.375" O.D.) 16" IPS(16.000" O.D.)
SCH 10, 40, 80, 160, XXH SCH10(.188), SCH40(.375)
2 1/2" IPS(2.875" O.D.) 18" IPS (18.000" O.D.)
SCH 10, 40, 80, 160, XXH SCH-40 (.375)
3" IPS( 3.500" O.D.)  
SCH 5, 10, 40, 80, 160, XXH  

446 Stainless Steel Pipe Manufacturers in India

ASTM A268 TP446 Tube stockist | AISI TP 446-1 Tubing suppliers | AISI 446 Pipe manufacturer | SS 446 Pipe Stock