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By using 1.4307 you get a corrosion resistant austenitic stainless steel with good formability. The steel is modified for machining and is available in a wide range of profiles and dimensions. The steel is often used for details within building and construction, machining industry.
The steel grade 1.4307 (also called ASTM 304/ 304L – SS2333) is a general purpose stainless steel, called 18-8-steel, with good corrosion resistant, impact strength and formability. The steel has improved machinability by, MAXIVAL®, and it is suitable for production of corrosion resistant products by machining. It has good corrosion resistance to uniform corrosion and to many slightly corrosive organic and inorganic chemicals. It is non-magnetic but may become somewhat magnetic after cold working and welding.
Typical application areas for 1.4307:
Weldable and modified for machining
1.4307 is a stainless steel which usually is more difficult to machine than ordinary carbon steels, but thanks to MAXIVAL® it has improved machinability. It can be readily welded by a full range of conventional welding methods. 1.4307 cannot be hardened by heat treatment, but it can be hardened by cold working.
Certificate
The steelworks has certificate as an approved material supplier of this steel grade from ABS, BV, DNV, GL, Lloyd’s and RINA.
Stainless steel 1.4301 / AISI 304 Acier Inoxydable
Rustfrit steel Acciai Inossidabli
Rostfrit steel Acero Inoxidable
W.Nr. 1.4301 | BS 304S31 | SIS 2333 |
AISI 304 | AFNOR Z7CN18-09 | JIS SUS304 |
X5CrNi18-10 | DIN 17740 1.4301 |
C max. 0,07 Cr 17,00 - 20,00 Ni 8,50 - 10,00 Mn 2,00 Si max. 1,00
1.4301 - AISI 304 is the standard for the austenitic grades of stainless steel due to its good corrosion resistance, ease of formability and fabrication coupeld with its aesthetic appearance in the polished, ground and brushed conditions. Since 1.4301 - AISI 304 is not resistant to intergranular corrosion
in the welded conditions, 1.4307 should rather be specified if welding of larger sections is required and no solution annealing treatment after welding can be performed. Surface conditions plays an important role in the corrosion resistance of this steel with polished surfaces exhibiting far superior corrosion resistance compared with rougher surfaces on the same material.
Stock range
1.4301 - AISI 304 round bar brightdrawn/ground tol. h9 acc. to DIN EN 10278 in lengths of 3 mtr.
Improved machinability
Sizes:
Ø 2,00 mm | Ø 7,00 mm | Ø 10,76 mm | Ø 15,00 mm | Ø 22,00 mm | Ø 33,00 mm | Ø 55,00 mm |
Ø 2,50 mm | Ø 7,12 mm | Ø 10,80 mm | Ø 16,00 mm | Ø 23,00 mm | Ø 33,25 mm | Ø 60,00 mm |
Ø 3,00 mm | Ø 7,15 mm | Ø 11,00 mm | Ø 17,00 mm | Ø 24,00 mm | Ø 34,00 mm | Ø 65,00 mm |
Ø 3,50 mm | Ø 7,50 mm | Ø 11,50 mm | Ø 17,70 mm | Ø 25,00 mm | Ø 35,00 mm | Ø 70,00 mm |
Ø 4,00 mm | Ø 8,00 mm | Ø 12,00 mm | Ø 18,00 mm | Ø 26,00 mm | Ø 36,00 mm | Ø 75,00 mm |
Ø 4,41 mm | Ø 8,50 mm | Ø 12,50 mm | Ø 18,25 mm | Ø 27,00 mm | Ø 38,00 mm | Ø 76,00 mm |
Ø 4,50 mm | Ø 8,95 mm | Ø 12,60 mm | Ø 18,27 mm | Ø 27,60 mm | Ø 40,00 mm | Ø 80,00 mm |
Ø 5,00 mm | Ø 9,00 mm | Ø 12,63 mm | Ø 19,00 mm | Ø 28,00 mm | Ø 42,00 mm | Ø 85,00 mm |
Ø 5,28 mm | Ø 9,50 mm | Ø 12,65 mm | Ø 20,00 mm | Ø 29,00 mm | Ø 45,00 mm | Ø 90,00 mm |
Ø 5,30 mm | Ø 10,00 mm | Ø 13,00 mm | Ø 21,00 mm | Ø 30,00 mm | Ø 46,00 mm | Ø 95,00 mm |
Ø 5,50 mm | Ø 10,35 mm | Ø 13,70 mm | Ø 21,30 mm | Ø 30,60 mm | Ø 48,00 mm | Ø 100,00 mm |
Ø 6,00 mm | Ø 10,50 mm | Ø 14,00 mm | Ø 21,90 mm | Ø 31,00 mm | Ø 50,00 mm | |
Ø 6,50 mm | Ø 10,73 mm | Ø 14,60 mm | Ø 21,95 mm | Ø 32,00 mm | Ø 52,00 mm |
1.4301 - AISI 304 round bar brightdrawn/ground tol. h9 acc. to DIN EN 10278 in lengths of 6 mtr.
Improved machinability
Sizes:
Ø 6,00 mm | Ø 15,00 mm | Ø 25,00 mm | Ø 45,00 mm | Ø 90,00 mm |
Ø 8,00 mm | Ø 16,00 mm | Ø 30,00 mm | Ø 50,00 mm | Ø 100,00 mm |
Ø 10,00 mm | Ø 18,00 mm | Ø 32,00 mm | Ø 60,00 mm | |
Ø 12,00 mm | Ø 20,00 mm | Ø 35,00 mm | Ø 70,00 mm | |
Ø 14,00 mm | Ø 22,00 mm | Ø 40,00 mm | Ø 80,00 mm |
1.4301 - AISI 304 round bar ground tol. h8 acc. to DIN EN 10278 in lengths of 3 mtr
improved machinability
Sizes
Ø 5,00 mm | Ø 12,00 mm | Ø 16,00 mm | Ø 25,00 mm |
Ø 6,00 mm | Ø 13,00 mm | Ø 18,00 mm | Ø 30,00 mm |
Ø 8,00 mm | Ø 14,00 mm | Ø 20,00 mm | Ø 35,00 mm |
Ø 10,00 mm | Ø 15,00 mm | Ø 22,00 mm | Ø 40,00 mm |
1.4301 - AISI 304 round bar ground tol. h6 acc. to DIN EN 10278 in lengths of 3 mtr
Improved machinability
Sizes:
Ø 6,00 mm | Ø 14,00 mm | Ø 20,00 mm | Ø 40,00 mm | Ø 80,00 mm |
Ø 8,00 mm | Ø 15,00 mm | Ø 25,00 mm | Ø 50,00 mm | Ø 90,00 mm |
Ø 10,00 mm | Ø 16,00 mm | Ø 30,00 mm | Ø 60,00 mm | Ø 100,00 mm |
Ø 12,00 mm | Ø 18,00 mm | Ø 35,00 mm | Ø 70,00 mm |
1.4301 - AISI 304 round bar bright acc. to DIN EN 10278, ground K240 in lengths of 3 mtr or 6 mtr
Sizes:
Ø 8,00 mm | Ø 14,00 mm | Ø 18,00 mm |
Ø 10,00 mm | Ø 15,00 mm | Ø 20,00 mm |
Ø 12,00 mm | Ø 16,00 mm | Ø 25,00 mm |
It is also possible to produce special sizes and lengths in a short deliverytime.
1.4301 - AISI 304 round bar hotrolled / forged, peeled / turned acc. DIN EN 10060 ( formerly DIN 1013 ), long 4-6 mtr
Sizes:
Ø 20,00 mm | Ø 42,00 mm | Ø 95,00 mm | Ø 150,00 mm | Ø 210,00 mm | Ø 310,00 mm | Ø 410,00 mm |
Ø 22,00 mm | Ø 45,00 mm | Ø 100,00 mm | Ø 155,00 mm | Ø 220,00 mm | Ø 320,00 mm | Ø 425,00 mm |
Ø 24,00 mm | Ø 50,00 mm | Ø 105,00 mm | Ø 160,00 mm | Ø 230,00 mm | Ø 325,00 mm | Ø 450,00 mm |
Ø 25,00 mm | Ø 55,00 mm | Ø 110,00 mm | Ø 165,00 mm | Ø 240,00 mm | Ø 330,00 mm | Ø 475,00 mm |
Ø 28,00 mm | Ø 60,00 mm | Ø 115,00 mm | Ø 170,00 mm | Ø 250,00 mm | Ø 340,00 mm | Ø 500,00 mm |
Ø 30,00 mm | Ø 65,00 mm | Ø 120,00 mm | Ø 175,00 mm | Ø 260,00 mm | Ø 350,00 mm | Ø 525,00 mm |
Ø 32,00 mm | Ø 70,00 mm | Ø 125,00 mm | Ø 180,00 mm | Ø 270,00 mm | Ø 360,00 mm | Ø 550,00 mm |
Ø 35,00 mm | Ø 75,00 mm | Ø 130,00 mm | Ø 185,00 mm | Ø 280,00 mm | Ø 370,00 mm | Ø 575,00 mm |
Ø 36,00 mm | Ø 80,00 mm | Ø 135,00 mm | Ø 190,00 mm | Ø 285,00 mm | Ø 375,00 mm | |
Ø 38,00 mm | Ø 85,00 mm | Ø 140,00 mm | Ø 195,00 mm | Ø 290,00 mm | Ø 380,00 mm | |
Ø 40,00 mm | Ø 90,00 mm | Ø 145,00 mm | Ø 200,00 mm | Ø 300,00 mm | Ø 400,00 mm |
1.4301 - AISI 304 Forgings
Forgings acc. to drawings, bars, discs and rings on request.
1.4301 - AISI 304 Blocks / flats, sawn from forged primematerial
Sizes on request.
1.4301 - AISI 304 hollow bars hotrolled - pickled, long 2-7 mtr
Sizes:
32 x 16 mm | 60 x 40 mm | 85 x 45 mm | 118 x 80 mm | 160 x 122 mm | 212 x 170 mm |
32 x 20 mm | 60 x 44 mm | 90 x 50 mm | 118 x 90 mm | 160 x 132 mm | 212 x 180 mm |
36 x 16 mm | 60 x 45 mm | 90 x 56 mm | 125 x 71 mm | 170 x 106 mm | 224 x 140 mm |
36 x 20 mm | 63 x 32 mm | 90 x 63 mm | 125 x 80 mm | 170 x 118 mm | 224 x 160 mm |
36 x 25 mm | 63 x 36 mm | 90 x 71 mm | 125 x 90 mm | 170 x 130 mm | 224 x 170 mm |
40 x 20 mm | 63 x 40 mm | 95 x 50 mm | 125 x 100 mm | 170 x 140 mm | 224 x 180 mm |
40 x 25 mm | 63 x 45 mm | 95 x 67 mm | 132 x 71 mm | 180 x 100 mm | 236 x 150 mm |
40 x 28 mm | 63 x 50 mm | 100 x 56 mm | 132 x 80 mm | 180 x 125 mm | 236 x 190 mm |
45 x 20 mm | 70 x 50 mm | 100 x 63 mm | 132 x 90 mm | 180 x 130 mm | 240 x 170 mm |
45 x 25 mm | 71 x 36 mm | 100 x 71 mm | 132 x 106 mm | 180 x 140 mm | 250 x 200 mm |
45 x 28 mm | 71 x 40 mm | 100 x 80 mm | 140 x 80 mm | 180 x 150 mm | 300 x 200 mm |
45 x 32 mm | 71 x 45 mm | 106 x 56 mm | 140 x 90 mm | 190 x 106 mm | 340 x 200 mm |
50 x 25 mm | 71 x 56 mm | 106 x 63 mm | 140 x 100 mm | 190 x 123 mm | 380 x 230 mm |
50 x 28 mm | 75 x 40 mm | 106 x 71 mm | 140 x 106 mm | 190 x 140 mm | 400 x 300 mm |
50 x 32 mm | 75 x 50 mm | 106 x 80 mm | 140 x 112 mm | 190 x 150 mm | 420 x 300 mm |
50 x 36 mm | 75 x 56 mm | 106 x 90 mm | 150 x 80 mm | 190 x 160 mm | |
50 x 40 mm | 75 x 60 mm | 112 x 63 mm | 150 x 95 mm | 200 x 140 mm | |
56 x 20 mm | 76 x 58 mm | 112 x 71 mm | 150 x 106 mm | 200 x 150 mm | |
56 x 25 mm | 80 x 40 mm | 112 x 80 mm | 150 x 125 mm | 200 x 160 mm | |
56 x 28 mm | 80 x 45 mm | 112 x 90 mm | 160 x 90 mm | 200 x 170 mm | |
56 x 30 mm | 80 x 50 mm | 118 x 63 mm | 160 x 112 mm | 212 x 130 mm | |
56 x 40 mm | 80 x 63 mm | 118 x 71 mm | 160 x 120 mm | 212 x 150 mm |
From roundbars turned and drilled on request.
1.4301 - AISI 304 square bars brightdrawn tolerance h11 DIN EN 10278 ( formerly DIN 176 ) long 3 mtr
Improved machinability
Sizes:
Ø 4,00 mm | Ø 8,00 mm | Ø 12,00 mm | Ø 16,00 mm | Ø 24,00 mm | Ø 35,00 mm | Ø 55,00 mm | Ø 100,00 mm |
Ø 5,00 mm | Ø 9,00 mm | Ø 13,00 mm | Ø 18,00 mm | Ø 25,00 mm | Ø 40,00 mm | Ø 60,00 mm | |
Ø 6,00 mm | Ø 10,00 mm | Ø 14,00 mm | Ø 20,00 mm | Ø 30,00 mm | Ø 45,00 mm | Ø 70,00 mm | |
Ø 7,00 mm | Ø 11,00 mm | Ø 15,00 mm | Ø 22,00 mm | Ø 32,00 mm | Ø 50,00 mm | Ø 80,00 mm |
1.4301 - AISI 304 hexagon bars brightdrawn tolerance h11 DIN EN 10278 ( formerly DIN 176 ) long 3 mtr
Improved machinability
Sizes:
4,00 mm | 9,00 mm | 14,00 mm | 22,00 mm | 36,00 mm | 60,00 mm |
5,00 mm | 10,00 mm | 15,00 mm | 24,00 mm | 41,00 mm | 65,00 mm |
6,00 mm | 11,00 mm | 16,00 mm | 27,00 mm | 46,00 mm | |
7,00 mm | 12,00 mm | 17,00 mm | 30,00 mm | 50,00 mm | |
8,00 mm | 13,00 mm | 19,00 mm | 32,00 mm | 55,00 mm |
1.4301 - AISI 304 square bars hotrolled and pickled tolerance DIN EN 10059 ( formerly DIN 1014 ) long 4-6 mtr
Sizes: 15 mm - 150 mm
1.4301 - AISI 304 flat bars brightdrawn tolerance h11 DIN EN 10278 ( formerly DIN 174 ) long 3 mtr
Sizes: 8 x 4 mm - 160 x 10 mm
1.4301 - AISI 304 flat bars hotrolled and pickled tolerance DIN EN 10058 ( formerly DIN 1017 ) long 4-6 mtr
Sizes: 10 x 4 mm - 200 x 40 mm
1.4301 - AISI 304 flat bars cut /slitted from sheets tolerance DIN EN 10058 ( formerly DIN 1017 ) long 4-6 mtr
Sizes: 10 x 3 mm - 300 x 12 mm
Flat bars grinded K 240/320 from stock possible.
1.4301 - AISI 304 Angle bars cold drawn / cold rolled tolerance DIN 59370 resp. DIN 1022
Sizes: 10 x 10 x 2 mm - 60 x 60 x 6 mm
1.4301 - AISI 304 Angle bars equal hotrolled and pickled tolerance DIN 1028 long 6 mtr
Sizes: 15 x 15 x 3 mm - 180 x 180 x 20 mm
1.4301 - AISI 304 Angle bars unequal hotrolled and pickled tolerance DIN 1029 long 6 mtr
Sizes: 20 x 10 x 3 mm - 200 x 100 x 12 mm
1.4301 - AISI 304 T-profiles hotrolled long 6 mtr
Sizes: T 20 mm - T 120 mm
1.4301 - AISI 304 U-profiles hotrolled long 6 mtr
Sizes: U 20 - U 200
1.4301 - AISI 304 IPB-IPE -profiles hotrolled long 6 mtr
Sizes:
IPE 80 - IPE 300
IPB 100 - IPB 300
We also have the ability to produce special sizes short term.
1.4301 - AISI 304 Sheets/Plates hotrolled Finish 1
Sizes:
Thickness 3 mm - 150 mm
Width 1000 / 1250 / 1500 / 2000 / 2500 mm
Length 2000 / 2500 / 3000 / 6000 / 6000 tot max. 8000 mm
1.4301 - AISI 304 sheets / plates plasma cutting / water-jet cutting / laser-cutting / sawn cuttings
Certificates: EN 10204 / 3.1
Steel grade1.4307 is a available as machined round bar, drawn round bar, ground round bar, flat bar, angle bar, square bar, hexagon bar and rebar. It is available in dimensions 3 – 500 mm depending on profile and execution.
If there is something you miss or wonder about you can always contact us to discuss your needs.
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.
Type 304 stainless steel is an austenitic grade that can be severely deep drawn. This property has resulted in 304 being the dominant grade used in applications like sinks and saucepans.
Type 304L is the low carbon version of 304. It is used in heavy gauge components for improved weldability. Some products such as plate and pipe may be available as “dual certified” material that meets the criteria for both 304 and 304L.
304H, a high carbon content variant, is also available for use at high temperatures.
Property data given in this document is typical for bar and section products covered by EN 10088-3:2005. ASTM, EN or other standards may cover products sold. It is reasonable to expect specifications in these standards to be similar but not necessarily identical to those given in this datasheet.
Chemical Element | % Present |
---|---|
Carbon (C) | 0.0 - 0.03 |
Chromium (Cr) | 17.50 - 19.50 |
Manganese (Mn) | 0.0 - 2.00 |
Silicon (Si) | 0.0 - 1.00 |
Phosphorous (P) | 0.0 - 0.05 |
Sulphur (S) | 0.0 - 0.03 |
Nickel (Ni) | 8.00 - 10.50 |
Nitrogen (N) | 0.0 - 0.11 |
Iron (Fe) | Balance |
Physical Property | Value |
---|---|
Density | 8.0 g/cm³ |
Melting Point | 1450 °C |
Thermal Expansion | 17.2 x10^-6 /K |
Modulus of Elasticity | 193 GPa |
Thermal Conductivity | 16.2 W/m.K |
Electrical Resistivity | 0.072 x10^-6 Ω .m |
Mechanical Property | Value |
---|---|
Proof Stress | 175 Min MPa |
Tensile Strength | 500 to 700 MPa |
Elongation A50 mm | 45 Min % |
Hardness Brinell | 215 Max HB |
Stainless Steel Grade 1.4301/304 also corresponds to the following designations but may not be a direct equivalent:
S30400
304S11
EN58E
304 stainless steel is typically used in:
304 has excellent corrosion resistance in a wide variety of environments and when in contact with different corrosive media. Pitting and crevice corrosion can occur in environments containing chlorides. Stress corrosion cracking can occur at temperatures over 60°C.
304 has good resistance to oxidation in intermittent service up to 870°C and in continuous service to 925°C. However, continuous use at 425-860°C is not recommended if corrosion resistance in water is required. In this instance 304L is recommended due to its resistance to carbide precipitation.
Where high strength is required at temperatures above 500°C and up to 800°C, grade 304H is recommended. This material will retain aqueous corrosion resistance
Fabrication of all stainless steels should be done only with tools dedicated to stainless steel materials. Tooling and work surfaces must be thoroughly cleaned before use. These precautions are necessary to avoid cross contamination of stainless steel by easily corroded metals that may discolour the surface of the fabricated product.
304 stainless steel readily work hardens. Fabrication methods involving cold working may require an intermediate annealing stage to alleviate work hardening and avoid tearing or cracking. At the completion of fabrication a full annealing operation should be employed to reduce internal stresses and optimise corrosion resistance.
Fabrication methods, like forging, that involve hot working should occur after uniform heating to 1149-1260°C. The fabricated components should then be rapidly cooled to ensure maximum corrosion resistance.
304 has good machinability. Machining can be enhanced by using the following rules:
Cutting edges must be kept sharp. Dull edges cause excess work hardening.
Cuts should be light but deep enough to prevent work hardening by riding on the surface of the material.
Chip breakers should be employed to assist in ensuring swarf remains clear of the work
Low thermal conductivity of austenitic alloys results in heat concentrating at the cutting edges. This means coolants and lubricants are necessary and must be used in large quantities.
304 stainless steel cannot be hardened by heat treatment.
Solution treatment or annealing can be done by rapid cooling after heating to 1010-1120°C.
Fusion welding performance for type 304 stainless steel is excellent both with and without fillers. Recommended filler rods and electrodes for stainless steel 304 is grade 308 stainless steel. For 304L the recommended filler is 308L. Heavy welded sections may require post-weld annealing. This step is not required for 304L. Grade 321 may be used if post-weld heat treatment is not possible.
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