Austenitic
Duplex Steel
Nickel Alloy
Cobalt Alloy

1.4306 is essentially a more highly alloyed version of 1.4307. Due to the slightly higher chromium and notably higher nickel content, 1.4306 is more corrosion resistant than 1.4307. Despite its improved corrosion resistance, 1.4306 finds itself in a diminishing market as far as profiles is concerned. A possible reason for this could be that most profiles are subjected to further processing by machining and to date no NIRO-CUT® version exists. Most customers thus specify either 1.4307 or 1.4404, when improved corrosion resistance is required.

Stainless steel types1.4301 and 1.4307 are also known as grades 304 and 304L respectively. Type 304 is the most versatile and widely used stainless steel. It is still sometimes referred to by its old name 18/8 which is derived from the nominal composition of type 304 being 18% chromium and 8% nickel.

Chemical Composition %

	C	Mn	P	S	Si	Ni	Cr	Mo	Ti	N	Nb
TP304L	0.035	2.00	0.045	0.030	1.0	8-13	18-20
1.4306	0.030	0.80	0.040	0.015	1.0	10-12	18-19			0.11
1.4307	0.030	0.80	0.040	0.015	1.0	8-10	17.5-19.5			0.11

Mechanical propertoes

	Tensile strength(Mpa)	Yield point(Mpa)	Elongation(%) Longitudinal	Elongation(%) transverse
TP304L	485	170	35	25
1.4306	480-680	180	40	35
1.4307	480-680	180	40	35

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We have products:

Stainless steel pipe fittings; U bend tube; Sanitary polish tube; Coiled Tubing for Heat exchanger; Stainless steel Precision tubing, BA tubing; Annealed & Pickled Pipe/Tube; Instrument tubing, Hydraulic tubing; Control line tubing in oil and Gas Well; Stainless Steel Bright Annealed Straight tubing; Structure and machining pipe Casing Tube; Bright Annealed Stainless Steel Coiled Tubing Seamless Tube For Industry; Stainless steel hexagon pipe seamless hexagonal shape; 15.88mmx1.24mm stainless steel seamless tubing; Forged steel pipe fitting high pressure rating fitting; ASTM A249 stainless steel pipe condenser tube; Sheathed multicore tubing & single core tubing; ASTM A213 TP304L 1/4 Inch Bright Annealed Instrument Coiled Tube; ASTM A213 TP304 9.53mm Coiled Tubing Manufacturer; ASTM A403 Stainless Steel Pipe Fitting Of Elbow 90 Degree LR; ASTM A269 / A213 / EN10216-5 TC 1 D4 / T3 Stainless Steel Seamless Pipe , Cold Rolled Pipe; 316L / 1.4404 Stainless Steel Big Size 8 Inch Pickling Pipe In Oil And Gas; Cold Rolled Stainless Steel Seamless Pipe Big Diameter , TP316L / 1.4404 100mm X 10mm; DN80 Stainlss Steel Sesamless Annealed & Pinkled Pipe For Fluid And Gas Transportation; EN10216-5 D4 / T3 Plain End Stainless Steel Seamless Pipe , 14 BWG , 18 BWG , 20 BWG; ASTM A213 TP304/304L/316/316L 33.4mm Stainless Steel Industrial Pipe; EN10216-5 D4 / T3 Stainless Steel Seamless Pipe , 1.4306 , 1.4301 , 1.4541 , 1.4404 , 1.4401; TP304 / 1.4301 Stainless Steel Seamless Pipe Pickling And Annealing; ASTM A312 Stainless Steel Welded Pipe 1.4301 / 1.4404 / 1.4306 / 1.4401; ASTM A312 TP304 Stainless Steel Welded Pipe , 168.3mm ⅹ 3.4mm , 6 Inch Sch10 / Sch10s , Welded Steel Pipe; 609.6 x 6.35 mm Stainless Steel Welded Pipe 1.4301 For Fluid Industry; TP304 / 1.4301 / TP304L / 1.4306 Stainless Steel Welded Pipe 6 INCH SCH10; ASTM A789 Stainless Steel Welded Pipe 1.4301 , 609.6 x 6.35 mm; 304 / 316 Annealed Pickled Welded Stainless Steel Pipes , Industrial Pipe; TP304 , TP304L , TP316 , TP316L Stainless Welded Pipe , ERW / EFW; ASTM A249 304L / 316L Stainless Steel Welded Tube For Heat Exchanger; 9.53 * 0.89MM Super Long Coiled Tubing , 300 Series Stainless Steel Material , ASTM A269 / A213; ASTM A269/A213 stainless steel Bright Annealed Tube , Seamless Round Tube; ASME B16.5 Flanges Pipe Fittings , Blind 150LB RF; ASTM A403 Flanges Pipe Fittings Tee , Straight Tee / Reducing Tee For Pipe Connection; F304 Stainless Steel Flange For Connection , WNRF SCH80 A / SA182 150 Class; ASTM A403 Flanges Pipe Fitting , Concentric & Eccentric Reducer For Pipe Connection; ASTM A403 Stainless Steel Pipe Fitting , BW ( Butt Welded ) Fittings; ASTM A403 WP316 / 316L Stainless Stainless 180 Degree Elbow Fittings; ASTM A815 Stainless Steel Butt Welded Fittings, Reducing Tee For Connection; ASME / ANSI B16.5 Stainless Steel Cap , Butt Welded Stainless Steel Pipe Fitting; ASTM A182 Stainless Steel Reducer Pipe Fitting For Connection; ASTM A182 F304 / 304L 150-2500LB Stainless Steel Blind Flange FF; DIN2628 Class 1500 Stainless Steel Socket Welding Flange; ASME B16.5 DN300 Stainless Steel F309S / F310S Welding Neck Flange; DIN2566 1.4306 Stainless Steel Threaded Flange; F304 / 304L Stainless Steel Threaded Flange, Class 300; ASTM A182 CL150 - CL2500 Stainless Steel Socket Welding Flange; DIN2628 1.4404 Stainless Steel Welding Neck Flange; ASTM A815 Stainless Steel Butt Welded Fittings , Equal & Reducing Tee; ASTM A403 WP304L / 316L Stainless Steel 90 Degree Elbow Pipe Fitting; Stainless Steel Flanges Pipe Fittings 300 Series Raw Material ISO 9001 / PED; ASTM A269 TP316 / 316L Stainless Steel Welded Multi-core Tubing; TP304 / 304L Welded Stainless Steel Coiled Tubing For Multi-core Tube; TP316 / 316L ASTM A269 Stainless Steel Welded Multi-core Coilded Tube For Fuild Industry; ASTM A213 S30400 / S30403 Stainelss Steel Multi-core Coiled Tubing; 316L / 1.4404 Stainless Steel Welded Coiled Tube For Multi-core Tube; TP304L / 316L Stainless Steel Welded Single And Multi Core Coiled Tubing; ASTM A269 S30403 / S31603 Stainless Steel Welded Coiled Tube For Multi-core Tube; TP304 / 304L 1.4301 / 1.4306 Stainless Steel Welded Single-core Coiled Tube; ASTM A213 304 / 304L 1.4301 / 1.4306 Stainless Steel Welded Multi-core Coiled Tube; ASTM A213 6.35mm TP304L Stainless Steel Super Long Coiled Tube For Control Line​; 4.76mm 316L / 1.4404 Stainless Steel Welded Super Long Coiled Tube In Oil And Gas; TP304L / 1.4306 Small Diameter Stainless Steel Welded Super Long Coiled Tube For Cable Industry; ASTM A269 / ASME SA269 1 / 4 Inch Stainless Steel Welded Super Long Coiled Tube; S31600 / S31603 9.53mm Stainless Steel Welded Super Long Coiled Tube; 1 / 8 Inch TP304 / 304L Stainless Steel Welded Super Long Coiled Tube For Food Industry; ASTM A213 5mm TP316L Stainless Steel Welded Super Long Coiled Tube; S30400 / S30403 ASME SA269 Stainless Steel Welded Super Long Coiled Tube For Cable Industry; 9.53mm TP304L / 316L Stainless Steel Welded Super Long Coiled Tubing For Medicine Industry; ASTM A213 / A269 S30400 / S31600 Stainless Steel Welded Super Long Coiled Tube; 3 / 8 Inch ASTM A269 Small Diameter Stainless Steel Welded Super Long Coiled Tube​; S30908 / S31008 8mm Stainless Steel Bright Annealed Coiled Tubing; EN10216-5 300 Series Stainless Steel Coiled Tubing Bright Annealed Surface; 20BWG 0.89mm Wall Thickness ( WT ) Stainless Steel Coiled Tubing ASTM A213 Standard; ASTM A269 Seamless Stainless Steel Coiled Tubing Suitable For Pre-insulated Tubing; 1.4404 / 1.4301 Size 9.53*20 BWG Stainelss Steel Coiled Tube For Oil And Gas; 1.4404 / 1.4306 / 1.4407 ASTM A213 Stainless Steel Seamless Coiled Tube For Fuild And Gas Industry; 3 / 8 Inch 17.1mm TP321 / 321H Stainless Steel Seamless Coiled Tubing With Cold Rolled; S30400 / S30403 EN10216-5 Stainless Steel Seamless Coiled Tubing; Tubing capilar sin costura de acero inoxidable ASTM A269 TP304 / 304L de 1/4 pulgadas para petróleo y gas; 1 / 2 Inch ASTM A213 TP316 / 316L Stainless Steel Seamless Coiled Tube For Instrument; ASTM A213 / ASME SA213 TP304 / 304L Stainless Steel Welded Marine Multi-core Coiled Tube; TP316L / S31603 Stainless Steel Welded Super Long Multi-core Coiled Tube For Marine; ASTM A269 / ASME SA269 Stainless Steel Welded Super Long Multi-core Coiled Tube For Marine; S31603 / S30403 Stainless Steel Small Diameter Welded Marine Multi-core Coiled Tubing; 1 / 2 Inch Sch10s Small Diameter Stainless Steel Welded Marine Multi-core Tubing; ASTM A269 TP316L / 304L Stainless Steel Welded Super Long Multi-core Tube For Marine; ASTM A213 / ASME SA213 ERW / EFW Stainless Steel Welded Tube With Bright Annealed Surface; 3 / 8 Inch TP309S / 310S Small Diameter Stainless Steel Bright Annealed Welded Tube; 6.35mm ASTM A269 Stainless Steel Bright Annealed Welded Tubing in Transportation; ASTM A213 TP304 / 304L Stainless Steel Bright Annealed Welded Tubing For Oil And Gas; TP316 / 316L 1.4401 / 1.4435 Austenitic Stainless Steel Pipe With Annealed & Pickled Surface; ASTM A790 TP304L / 1.4306 Austenitic Stainless Steel Pipe For Oil Industry; DN150 TP309S / 310S Austenitic Stainless Steel Big Size Pipe; DN200 Sch40 S31603 / S30403 Austenitic Annealed & Pickled Stainless Steel Pipe; DN250 6BWG TP304L / 1.4306 Big Size Austenitic Stainless Steel Pipe; ASTM A312 / ASME SA312 TP316L / 304L Austenitic Stainless Steel Pipe For Food Industry; 25.4*2.11mm ASTM A213 S30403 Stainless Steel Heat Exchanger Welded Tube; ASTM A249 TP304 / S30400 Stainless Steel ERW Straight Tube For Heat Exchanger; ASTM A269 / ASME SA269 Small Diameter 1.4306 / 1.4404 Stainless Steel Heat Exchanger Welded Tube; 4.76mm TP316L / 1.4404 Stainless Steel Straight Heat Exchanger Welded Tube; ASTM A249 / ASME SA249 ERW Stainless Steel Heat Exchanger Welded Tube; S30403 / S31603 1 / 4 Inch Stainless Steel U Bend Heat Exchanger Welded Tube; DN200 ASTM A358 TP304 / 304L Class 1 Stainless Steel Double Welded Pipe; 30Inch Sch10s ASTM A358 Big Size Stainless Steel Double Welded Pipe For Oil And Fuild; 8BWG ASTM A358 TP304L / 1.4306 Stainless Steel Double Welded Pipe With Annealed & Pickled Surface; TP309S / 1.4833 DN250 Big Size Stainless Steel Double Welded Pipe For Transportation; DN300 ASTM A358 TP304 / 1.4301 Big Size Stainless Steel Welded Pipe With Cold Rolled; ASTM A358 / ASME SA358 S31603 / 1.44101 Stainless Steel Double Welded Pipe; CL150-2500 F304 / 304L Stainless Steel Welded Neck Flange ANSI B16.5; ASTM A182 Class900 Stainless Steel Blind Flange FF For Connection; ASME / ANSI B16.5 F316 / 316L Stainless Steel Welded Neck Flange For Connection; ASTM A182 / ASME SA182 600LB F304 / 304L Stainless Steel Socket Welded Flange; 1.4306 / 1.4404 Stainless Steel Seamless Sanitary Tube, ASTM A269; ASTM A269 / ASME SA269 1.4306 / 1.4404 Stainless Steel Sanitary Tube With Cold Rolled; 1 / 4 Inch Stainless Steel Sanitary Tube, ASTM A269 / ASME SA269 For Chemical Industry; 1 / 2 Inch Sch80s ASTM A269 Bright Annealed Stainless Steel Sanitary Tube; TP304 / 304L Precision Stainless Steel Seamless Tube, ASTM A269 / ASME SA269; 24SWG Stainless Steel Precision Tube For Instrumention, TP304 / 304L With Bright Annealed Surface; 10 / 12 / 14SWG Precision Stainless Steel Seamless Tube With Cold Rolled For Medical Industry; ASTM A213 / ASME SA213 Stainless Steel Precision Seamless Tube, S30400 /30403 For Food Industry; ASTM A269 / A213 Stainless Steel Precision Seamless Tube With Cold Rolled For Chemical; ASTM A213 S30400 / 30403 Small Diameter Stainless Steel Seamless Tube For Instrument; ASTM A213 S30400 / 30403 Small Diameter Stainless Steel Seamless Tube For Instrument; TP304 / 304L Stainless Steel Seamless Tube For Instrument With Bright Annealed Surface; S31600 / S30400 Stainless Steel Seamless Bright Annealed Instrument Tube; ASTM A312 TP304 / 304L Stainless Steel Annealed & Pickled Seamless Industrial Pipe; ASTM A312 S30403 / 1.4306 Stainless Steel Big Size Seamless Pipe For Transportation; ASTM A312 Stainless Steel Annealed & Pickled Industrial Pipe For Oil And Gas; 1.4306 / 1.4404 Annealed & Pickled Stainless Steel Seamless Pipe For Industry; 28Inch 18SWG Big Size Stainless Steel Industrial Pipe For Transportation; 10BWG DN200 Stainless Steel Seamless / Welded Pipe With Cold Rolled; ASTM A269 / ASME SA269 Stainless Steel Seamless Hydraulic Tube With Small Diameter; 24SWG 1 / 2Inch Hydraulic Tube, TP304 / 304L Stainless Steel Seamless Tube; EN10216-5 TP304 / 304L Stainless Steel Seamlss Hydraulic Tube With BA Surface; ASTM A213 / ASTM A269 Small Diameter TP304L Heat Exchanger Stainless Steel Tube For Fluid And Gas; ASTM A182 F304 / 304L Stainless Steel Socket Welded Elbow Forged High Pressure Pipe Fitting; F304 / 304L 1/2 inch 3000LBS Stainless Steel Union Threaded Forged High Pressure Pipe Fitting; Size 1 / 4 Inch Stainless Steel Seamless Tubing ASTM A213 With Hydraulic Test; Forged High Pressure Fitting F316 / 316L 2 inch Stainless Steel Socket Welded Cap; Threaded End F316L / 304L 2 inch 3000LBS Stainless Steel Reducing Coupling Forged Fitting; ASTM A182 F304L / 316L Stainless Steel Hex Nipple Threaded Forged High Pressure Fittings; ASME B16.11 F304L / F316L Stainless Steel Socket Welded Threaded Tee; Threaded End ASTM A182/A105 Stainless Steel 90 Degree Elbow Forged High Pressure Pipe Fittings; ASME B16.11 Forged High Pressure Pipe Fittings ,ASTM A403 Square Head Plug Threaded End; TP304L 73.0MM*7.01MM Annealed&Pickling Stainless Steel Welded Pipe; Cold Drawn ASTM A213 S30400/S30403 Straight Heat Exchanger Tube; 10 Inch TP304L Annealed Pickled Stainless Steel Welded Pipe; ASTM A403 Stainless Steel Flanges Pipe Fittings 304L/S316L 90 Degree Tee; 150class Reducing Tee NPT Stainless Steel Male Female Thread Connection; Stainless Steel Spring Wire for 304/304L/304M/304H High Quality Wire with High Strength; 26.7*2.87mm ASTM A213 Stainless Steel Straight Seamless Heat Exchanger Tube; TP304L 25.4*2.11mm U Bend Stainless Steel Heat Exchanger Tube; For Boiler ASTM A213 Stainless Steel Seamless Heat Exchanger Tube; Stainless Steel TP304L ASTM A213 Heat Exchanger Tube Annealed&Pickling Surface 300 Series; 25.4mm TP304L / 1.4306 Heat Exchanger Tube For Chemical Equipment; ASTM A213 304/316L Heat Exchanger Tube Pickling & Annealing Surface , U Tube; 316 Casting Fitting Coupling For Water Transportation 150PSI; Stainless Steel Coupling 150PSI BSP/NPT Casting Pipe Fitting; Hose Nipple Stainless Steel Casting Fitting NPTM 150psi Thread Connection; Hexagonal Bushing Stainless steel CF8/CF8M NPT 150psi for connection; ASTM A351 304 316 Stainless Steel Square Plug Casting Pipe Fittings; CF8M ASTM A351 Male Female Thread Casting Fitting Reducing Elbow; 1/2 Reducing Coupling NPT150psi Stainless Steel Casting Pipe Fitting; CF8/CF8M Stainless Steel Coupling Tread Connection NPTF; Hose Nipple ASTM A351 CF8 Casting Fitting NPTM Thread Connection; 304/316 Thread Fitting Hexagonal Bushing 150PSI For Gas Pipe System; Stainless Steel Welding Heat Exchange Tube ASTM A213 For Air Condenser; TP316 Stainless Steel Straight Heat Exchange Tube, ASTM A213 For Chemical Equipment; ASTM A213/269 Heat Exchange Stainless Steel Tubing With A&P Surface For Pressure Vessel; TP321/321H 19.05mm Stainless Steel Tubing Cold Rolled For Boiler; Duplex Steel S31803 31.8mm Seamless/ Welded U Bend Tubing For Desalination; S31803 Duplex Steel Heat Exchanger Tube With Annealed&Pickling Surface; S31803/2205 ASTM A789 Heat Exchanger Seamless /Welded Tube For Petroleum Refining; Petroleum Refining Used S31803/32750 Heat Exchanger Tube; 25.4mm Cold Rolled U Bend Tube Duplex Steel For Heat Exchanger; 25.4mm Cold Rolled S31803 Tube Desalination Used Duplex Steel For Heat Exchanger; Instrumentation Used Nickel Alloy 825/625 Heat Exchange U Tube; Cold Rolled Nickel Alloy Heat Exchange Seamless U Tube With Annealed; Heat Exchange Tube Nickel Alloy 625/825 For Chemical Equipment with BA/AP Surface; Nickel Alloy Cold Rolled Heat Exchange Tube Alloy 625/UNS N06625 For Pressure Vessel; 19.05mm Cold Rolled U Bend Tube Nickel Alloy Seamless For Heat Exchanger; Chemical Equipment Used 31.8mm Cold Rolled Nickel Alloy Straight/ U Bend Tube Corrosion Resistance; Alloy 400/600 Nickel Alloy Heat Exchanger U Bend Tube With Annealed Surface; ER304/304L/304M/304H Stainless Steel Welding Wire Rods with Annealing treament; A276 304V/304LV Stainless Steel Wire for Medical Fine Wire; Stainless Steel 304V/304LV Medical Wire Non-toxic Fine Wire; 304/304L/304H Stainless Steel Wire for Welding, Mesh, Spring, NUT; 304L/316L ASTM A269 Impulse Tubes With BA Surface for Oilfield Service; Stainless Steel Spiral Wound Tube 304L/ 316L Cold Rolled For Oil Drilling;