1.304 Stainless Steel , 18/8 Stainless steel, European norm 1.4301, is the most common Stainless Steel (UNS S30400)
2. Grade 304 Stainless Steel is the standard "18/8" stainless; it is the most versatile and most widely used stainless steel, available in a wider range of products, forms and finishes than any other. It has excellent forming and welding characteristics.
3. The balanced austenitic structure of Grade 304 enables it to be severely deep drawn without intermediate annealing, which has made this grade dominant in the manufacture of drawn stainless parts such as sinks, hollow-ware and saucepans. For these applications it is common to use special "304DDQ" (Deep Drawing Quality) variants.
4. Grade 304 is readily brake or roll formed into a variety of components for applications in the industrial, architectural, and transportation fields. Grade 304 also has outstanding welding characteristics. Post-weld annealing is not required when welding thin sections.
5.304 Stainless Steel Plates in Hot Rolled and Cold Rolled with Surface Finish Like Mill Finish, No.1, 2B, 2D, No.4, No.8, Mirror, Brush, Hairline etc. with NACE MR O1-75, Inter granular Corrosion Test A262 Practice E, Mercury Free in Width of 1250 / 1500 / 2000 mm and Custom Size from 0.6 to 80 mm Thickness.
6.304 has a cost efficiency but is not very well performing under pitting corrosion and crevice corrosion risk environments.
304 Stainless Steel Plate; SS 304 plate; 304 Steel Plate; Hot Rolled 304 Steel Plate, Cold Rolled 304 Steel Plate; 304 HR Plate, ASTM A240 Type 304 Plate; UNS S30400 Plate
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304 Stainless Steel Plate Specification |
ASTM A240 / ASME SA240 |
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304 Stainless Steel Manufacturing Process |
Hot Rolled (HR) / Cold Rolled (CR) |
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304 Stainless Steel Plate Grades |
202 / 304 / 304L / 304H / 309S / 310S / 316 / 316L / 316Ti / 317L / 321 / 321H / 347 / 347H / 904L etc. |
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304 Stainless Steel Plate Thickness |
0.6 MM TO 80 MM THICKNESS |
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304 Stainless Steel Plate Width |
1250 MM / 1500 MM / 2000 MM / 04 Feet / 05 Feet and Custom Cut Width as Per Requirement |
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304 Stainless Steel Plate Length |
2400 MM / 2420 MM / 6000 MM / 08 Feet / 10 Feet / Coil Cut and Custom Cut Length as Per Requirement |
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304 Stainless Steel Plate Surface Finish |
2B, 2D, BA, MATT, MATT PVC, No.4, No.5, SB, HR, No.8, Mirror, Hairline, Brush, Textured, Oil base wet Polished, Both sides Polished available. |
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304 Stainless Steel Plate Coating |
PVC coating Normal / Laser, Film: 100 micrometer, Color: black/white. |
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304 Stainless Steel Plate Other Testing |
NACE MR0175, Ultrasoung TEST, IGC TEST, Intergranular Corrrosion Test as per ASTM A262 Practice E, Charpy Impact Test, Macro, Grain Size, Hardness, etc. |
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304 Stainless Steel Plate Value Added Services |
Gas Cutting / CNC Plasma Cutting / Profiling / Rolling / Bending / Sheet Metal Fabrication / Drill / Punch / Machining / Sand Blasting / Shot Blasting / Heat Treatment |
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304 Stainless Steel Plate Packaging |
Loose / Carrate / Wooden Pallet / Wooden Box / Plastic Cloth Wraps |
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304 Stainless Steel Plate Shipment & Transportation |
By Road - Truck / Train Partial Load, Full Load, By Sea - Break-bulk Conventional Vessel / FCL (Full Container Load) / LCL (Less Container Load) / 20 Feet Container / 40 Feet Container / 45 Feet Container / High Cube Container / Open Top Container, By Air - Freighter Civil Passenger and Cargo Planes |
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304 Stainless Steel Plate Material Test Certificate |
Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS, Bureau of Indian Standards BIS Approved ETC |
The chemical composition of grade 304 Stainless Steel is outlined in the following table
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|
|
Mn |
Si |
P |
S |
Cr |
Ni |
N |
|
304 |
0.07max |
2.0max |
0.75max |
0.045max |
0.03max |
min: 18.0 max: 20.0 |
min: 8.0 max: 10.5 |
— |
|
304L |
0.03max |
2.0max |
0.75max |
0.045max |
0.03max |
min: 18.0 max: 20.0 |
min: 8.0 max: 12.0 |
0.10 max |
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304H |
min: 18.0 max:20.0 |
min: 8.0 max: 10.5 |
min: 0.04 max:0.10 |
0.75 max |
2.0 max |
0.045 max |
0.03 max |
0.10 max |
The mechanical properties of grade 304 Stainless Steel Plates are displayed in the following table.
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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 |
||||
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304 |
515 |
205 |
40 |
92 |
201 |
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304L |
485 |
170 |
40 |
92 |
201 |
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304H |
515 |
205 |
40 |
92 |
201 |
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304H also has a requirement for a grain size of ASTM No 7 or coarser. |
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Physical properties of 304 grade stainless steel in the annealed condition
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Grade |
Density |
Elastic Modulus (GPa) |
Mean Coefficient of Thermal Expansion (μm/m/°C) |
Thermal Conductivity (W/m.K) |
Specific Heat 0-100°C (J/kg.K) |
Electrical Resistivity (nΩ.m) |
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|
0-100°C |
0-315°C |
0-538°C |
at 100°C |
at 500°C |
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304/L/H |
8000 |
193 |
17.2 |
17.8 |
18.4 |
16.2 |
21.5 |
500 |
720 |
Possible alternative grades to 304 grade stainless steel
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Grade |
Why it might be chosen instead of 304 |
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301L |
A higher work hardening rate grade is required for certain roll formed or stretch formed components. |
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302HQ |
Lower work hardening rate is needed for cold forging of screws, bolts and rivets. |
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303 |
Higher machinability needed, and the lower corrosion resistance, formability and weldability are acceptable. |
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316 |
Higher resistance to pitting and crevice corrosion is required, in chloride environments |
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321 |
Better resistance to temperatures of around 600-900°C is needed…321 has higher hot strength. |
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3CR12 |
A lower cost is required, and the reduced corrosion resistance and resulting discolouration are acceptable. |
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430 |
A lower cost is required, and the reduced corrosion resistance and fabrication characteristics are acceptable. |
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EN-standardSteel no. k.h.s DIN |
EN-standardSteel name |
SAE grade |
UNS |
|
1.4109 |
X65CrMo14 |
440A |
S44002 |
|
1.4112 |
X90CrMoV18 |
440B |
S44003 |
|
1.4125 |
X105CrMo17 |
440C |
S44004 |
|
|
|
440F |
S44020 |
|
1.4016 |
X6Cr17 |
430 |
S43000 |
|
1.4408 |
G-X 6 CrNiMo 18-10 |
316 |
S31600 |
|
1.4512 |
X6CrTi12 |
409 |
S40900 |
|
|
|
410 |
S41000 |
|
1.4310 |
X10CrNi18-8 |
301 |
S30100 |
|
1.4318 |
X2CrNiN18-7 |
301LN |
|
|
1.4307 |
X2CrNi18-9 |
304L |
S3043 |
|
1.4306 |
X2CrNi19-11 |
304L |
S30403 |
|
1.4311 |
X2CrNiN18-10 |
304LN |
S30453 |
|
1.4301 |
X5CrNi18-10 |
304 |
S30400 |
|
1.4948 |
X6CrNi18-11 |
304H |
S30409 |
|
1.4303 |
X5CrNi18-12 |
305 |
S30500 |
|
|
X5CrNi30-9 |
312 |
|
|
1.4841 |
X22CrNi2520 |
310 |
S31000 |
|
1.4845 |
X 5 CrNi 2520 |
310S |
S31008 |
|
1.4541 |
X6CrNiTi18-10 |
321 |
S32100 |
|
1.4878 |
X12CrNiTi18-9 |
321H |
S32109 |
|
1.4404 |
X2CrNiMo17-12-2 |
316L |
S31603 |
|
1.4401 |
X5CrNiMo17-12-2 |
316 |
S31600 |
|
1.4406 |
X2CrNiMoN17-12-2 |
316LN |
S31653 |
|
1.4432 |
X2CrNiMo17-12-3 |
316L |
S31603 |
|
1.4435 |
X2CrNiMo18-14-3 |
316L |
S31603 |
|
1.4436 |
X3CrNiMo17-13-3 |
316 |
S31600 |
|
1.4571 |
X6CrNiMoTi17-12-2 |
316Ti |
S31635 |
|
1.4429 |
X2CrNiMoN17-13-3 |
316LN |
S31653 |
|
1.4438 |
X2CrNiMo18-15-4 |
317L |
S31703 |
|
1.4362 |
X2CrNi23-4 |
2304 |
S32304 |
|
1.4462 |
X2CrNiMoN22-5-3 |
2205 |
S31803/S32205 |
|
1.4501 |
X2CrNiMoCuWN25-7-4 |
J405 |
S32760 |
|
1.4539 |
X1NiCrMoCu25-20-5 |
904L |
N08904 |
|
1.4529 |
X1NiCrMoCuN25-20-7 |
|
N08926 |
|
1.4547 |
X1CrNiMoCuN20-18-7 |
254SMO |
S31254 |
