Stainless Steel – Grade 409 (UNS S40900)
Short Description:
About 409L stainelss steel
409L stainless steel for corrosion, high temperature and resistance to fatigue, and can achieve longevity and lightweight exhaust system components. 409L high temperature resistance, and can achieve high efficiency of the engine and exhaust system, and to reduce the thickness of the exhaust system, can reduce exhaust emissions. 409L low cost, flexibility, and finished product rate, easy to replace, are environmentally friendly new products.
409 409L stainless steel sheet and plate
409L stainless steel coil
About 409L stainelss steel
409L stainless steel for corrosion, high temperature and resistance to fatigue, and can achieve longevity and lightweight exhaust system components. 409L high temperature resistance, and can achieve high efficiency of the engine and exhaust system, and to reduce the thickness of the exhaust system, can reduce exhaust emissions. 409L low cost, flexibility, and finished product rate, easy to replace, are environmentally friendly new products.
Chemical composition for 409L stainless steel
| Grade | C(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Ni(%) | Ti(%) | Cu(%) |
| 409L | ≤0.03 | ≤1.0 | ≤1.0 | ≤0.04 | ≤0.03 | 10.5-11.75 | ≤0.06 | 6xC%-0.75 | — |
Mechanical property for 409L stainless steel
| Grade | tensile strengthMpa | Yield StrengthMpa | Elongation(%) | rate of reduction in area(%) | Density(g/cm3) |
| 409L | ≥360 | ≥175 | ≥25 | — | 7.75 |
Specifications for 409L stainless steel
| Technical | thickness | Width | finish | Origin |
| Cold rolled | 0.5mm-3.0mm | Standard width in China:1000mmm 1219mmSpecial:can be ordered | 2D | TISCO / Baosteel etc |
Applications for 409L stainless steel
409L stainless steel is one of the most widely used chromium nickel stainless steel, which has good corrosion resistance, heat resistance, low temperature strength and mechanical properties.
Widely used in chemical, food, medicine, paper, petroleum, atomic energy and other industries, as well as construction, kitchen utensils, tableware, vehicles, household appliances all kinds of parts.
Corrosion in the atmosphere, if it is an industrial atmosphere or heavily polluted areas, it is necessary to clean in time to avoid corrosion.
Standards for 409L stainless steel
GB: 00Cr11Ti(Standards from China)
ASTM: 409L (Standards from USA)
DIN: 1.4512 (Standards from Europe)
JIS: SUH409L (Standards from Japan)
The weight calculation method for 409L stainless steel
Weight(KG/PC)=thickness(mm) x width(Meter) x length(Meter) x 7.75
Small knowledge for 409L stainless steel
Crystallization characteristicsfor 409L material
The solid liquid phase region of 409L steel is very small, less than 30.
Almost no gamma phase at high temperature. So 409L began to crystallize in the steel after pouring, due to direct contact with the mold surface, the degree of supercooling of liquid phase, and mold surface and promote heterogeneous nucleation, therefore, liquid phase nucleation rate is very high, the formation of surface fine equiaxed grains. The formation of fine equiaxed grains on the surface of the titanium alloy is very fast, and the titanium carbide is too short to precipitate. After the formation of the equiaxed zone, the columnar crystals are formed in the steel, but there is no columnar crystal in 409L steel.
Carbon content of 409L steel is very low, even if the delta phase, the amount is very small. Therefore, the performance will not have a big impact.
409L steel has almost no alpha to gamma phase transition from high temperature to low temperature, so it is easy to grow grain, appear coarse ferrite, low strength, in continuous casting slab, cut off the line, easy to appear elbow phenomenon, affecting the normal production.
Material Grade
| Material | ASTM A240 Standard | 201, 304 304L 304H 309S 309H 310S 310H 316 316H 316L 316Ti 317 317L 321 321H 347 347H 409 410 410S 430 904L |
| ASTM A480 Standard | 302, s30215, s30452, s30615, 308, 309, 309Cb, 310, 310Cb, S32615,S33228, S38100, 304H, 309H, 310H, 316H, 309HCb, 310HCb, 321H,347H, 348H, S31060, N08811, N08020, N08367, N08810, N08904,N08926, S31277, S20161, S30600, S30601, S31254, S31266,S32050, S32654, S32053, S31727, S33228, S34565, S35315,S31200, S31803, S32001, S32550, S31260, S32003, S32101,S32205, S32304, S32506, S32520, S32750, S32760, S32900, S32906, S32950, S32974 | |
| JIS 4304-2005 Standard | SUS301L,SUS301J1,SUS302,SUS304, SUS304L, SUS316/316L, SUS309S, SUS310S, 3SUS21L, SUS347, SUS410L, SUS430, SUS630 | |
| JIS G4305 Standard | SUS301, SUS301L, SUS301J1, SUS302B, SUS304, SUS304Cu,SUS304L, SUS304N1, SUS304N2, SUS304LN, SUS304J1, SUSJ2,SUS305, SUS309S, SUS310S, SUS312L, SUS315J1, SUS315J2,SUS316, SUS316L, SUS316N, SUS316LN, SUS316Ti, SUS316J1,SUS316J1L,SUS317, SUS317L, SUS317LN, SUS317J1, SUS317J2,SUS836L, SUS890L, SUS321, SUS347, SUSXM7, SUSXM15J1, SUS329J1, SUS329J3L, SUS329J4L, SUS405, SUS410L, SUS429, SUS430, SUS430LX, SUS430J1L, SUS434, SUS436L, SUS436J1L,SUS444, SUS445J1, SUS445J2, SUS447J1, SUSXM27, SUS403,SUS410, SUS410S, SUS420J1, SUS420J2, SUS440A |
Product Specification
| Finish | Thickness | Characteristics | Applications |
| No. 1 | 3.0mm~50.0mm | Finished by hot-rolling, annealing and pickling, characterized by white pickled surface | Chemical industry equipment, Industrial tanks |
| No. 2B | 0.3mm~6.0mm | Finished by heat treatment, pickling after cold rolling, followed by skin pass line to be more brighter and smooth surface | General Application Medical Instruments, Tableware |
| No. BA (Bright Annealed) | 0.5mm~2.0mm | Bright heat treatment after cold rolling | Kitchen utensil, kitchen ware, architectural purpose |
| No. 4 | 0.4mm~3.0mm | Polishing with No. 150 to No.180 mesh abrasives. The most popular finishes | Milk & Food processing facilities, Hospital Equipment, Bath-tub |
| No. 8 | 0.5mm~2.0mm | A mirror-like reflective surface by polishing with finer abrasives over 800 mesh | Reflector, Mirror, Interior-Exterior decoration forbuilding |
| HL(Hair Line) | 0.4mm~3.0mm | Finished by continuous linear polishing | Architectural purposes, escalators, kitchen ware vehicles |
Chemical Composition
|
Grade |
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Mo |
Ti |
N |
Cu |
Nb |
|
201 |
≤0.15 |
≤1.0 |
5.50-7.50 |
≤0.05 |
≤0.03 |
16.00-18.00 |
3.50-5.50 |
- |
- |
0.05-0.25 |
- |
- |
|
202 |
≤0.15 |
≤1.0 |
7.50-10.00 |
≤0.05 |
≤0.03 |
17.00-19.00 |
4.00-6.00 |
- |
- |
0.05-0.25 |
- |
- |
|
301 |
≤0.15 |
≤1.0 |
≤2.0 |
≤0.045 |
≤0.03 |
16.00-18.00 |
6.00-8.00 |
- |
- |
≤0.1 |
- |
- |
|
302 |
≤0.15 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
17.00-19.00 |
8.00-10.00 |
- |
- |
≤0.1 |
- |
- |
|
303 |
≤0.15 |
≤1.0 |
≤2.0 |
≤0.2 |
≥0.15 |
17.00-19.00 |
8.00-10.00 |
≤0.6 |
- |
≤0.1 |
- |
- |
|
304 |
≤0.08 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
17.00-19.00 |
8.00-10.00 |
- |
- |
- |
- |
- |
|
304L |
≤0.03 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
18.00-20.00 |
8.00-10.00 |
- |
- |
- |
- |
- |
|
304H |
0.04-0.1 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
18.00-20.00 |
8.00-10.00 |
- |
- |
- |
- |
- |
|
304N |
≤0.08 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
18.00-20.00 |
8.00-10.00 |
- |
- |
0.10-0.16 |
- |
- |
|
304J1 |
≤0.08 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
18.00-20.00 |
6.00-9.00 |
- |
- |
- |
1.00-3.00 |
- |
|
305 |
≤0.12 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
17.00-19.00 |
10.50-13.00 |
- |
- |
- |
- |
- |
|
309S |
≤0.08 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
22.00-24.00 |
12.00-15.00 |
- |
- |
- |
- |
- |
|
310S |
≤0.08 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
24.00-26.00 |
19.00-22.00 |
- |
- |
- |
- |
- |
|
316 |
≤0.08 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
16.00-18.00 |
10.00-14.00 |
2.00-3.00 |
- |
- |
- |
- |
|
316L |
≤0.03 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
16.00-18.00 |
12.00-15.00 |
2.00-3.00 |
- |
- |
- |
- |
|
316H |
≤0.1 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
16.00-18.00 |
10.00-14.00 |
2.00-3.00 |
- |
- |
- |
- |
|
316N |
≤0.03 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
16.00-18.00 |
10.00-14.00 |
2.00-3.00 |
- |
0.10-0.16 |
- |
- |
|
316Ti |
≤0.08 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
16.00-19.00 |
11.00-14.00 |
2.00-3.00 |
≥5C |
- |
- |
- |
|
317L |
≤0.03 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
18.00-20.00 |
11.00-15.00 |
3.00-4.00 |
- |
- |
- |
- |
|
321 |
≤0.08 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
17.00-19.00 |
9.00-12.00 |
- |
5C-0.7 |
- |
- |
- |
|
347 |
≤0.08 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
17.00-19.00 |
9.00-12.00 |
- |
- |
- |
- |
10C-1.10 |
|
347H |
≤0.1 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
17.00-19.00 |
9.00-12.00 |
- |
- |
- |
- |
8C-1.10 |
|
2205 |
≤0.03 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
21.00-24.00 |
4.50-6.50 |
2.50-3.50 |
- |
0.08-0.20 |
- |
- |
|
2507 |
≤0.03 |
≤0.8 |
≤1.2 |
≤0.035 |
≤0.02 |
24.00-26.00 |
6.00-8.00 |
3.00-5.00 |
- |
0.24-0.32 |
- |
- |
|
904L |
≤0.02 |
≤1.0 |
≤2.0 |
≤0.045 |
≤0.03 |
19.00-23.00 |
23.00-28.00 |
4.00-5.00 |
- |
- |
1.00-2.00 |
- |
|
C276 |
≤0.02 |
≤0.05 |
≤1.0 |
- |
- |
14.00-16.50 |
Other |
- |
- |
- |
- |
- |
|
Monel400 |
≤0.3 |
≤0.5 |
≤2.0 |
- |
≤0.024 |
- |
≥63 |
- |
- |
- |
28-34 |
- |
|
409L |
≤0.03 |
≤1.0 |
≤1.0 |
≤0.035 |
≤0.03 |
17.00-19.00 |
- |
- |
- |
- |
- |
- |
|
410 |
≤0.15 |
≤1.0 |
≤1.0 |
≤0.035 |
≤0.03 |
11.50-13.50 |
- |
- |
- |
- |
- |
- |
|
410L |
≤0.03 |
≤1.0 |
≤1.0 |
≤0.035 |
≤0.03 |
11.50-13.50 |
- |
- |
- |
- |
- |
- |
|
420J1 |
0.16-0.25 |
≤1.0 |
≤1.0 |
≤0.035 |
≤0.03 |
12.00-14.00 |
- |
- |
- |
- |
- |
- |
|
420J2 |
0.26-0.40 |
≤1.0 |
≤1.0 |
≤0.035 |
≤0.03 |
12.00-14.00 |
- |
- |
- |
- |
- |
- |
|
430 |
≤0.12 |
≤1.0 |
≤1.0 |
≤0.035 |
≤0.03 |
16.00-18.00 |
- |
- |
- |
- |
- |
- |
|
436L |
≤0.025 |
≤1.0 |
≤1.0 |
≤0.035 |
≤0.03 |
16.00-19.00 |
- |
- |
- |
- |
- |
- |
|
439 |
≤0.03 |
≤1.0 |
≤1.0 |
≤0.035 |
≤0.03 |
16.00-18.00 |
- |
- |
- |
- |
- |
- |
|
440A |
0.60-0.75 |
≤1.0 |
≤1.0 |
≤0.035 |
≤0.03 |
16.00-18.00 |
- |
≤0.75 |
- |
- |
- |
- |
|
440B |
0.75-0.95 |
≤1.0 |
≤1.0 |
≤0.035 |
≤0.03 |
16.00-18.00 |
- |
≤0.75 |
- |
- |
- |
- |
|
440C |
0.95-1.2 |
≤1.0 |
≤1.0 |
≤0.035 |
≤0.03 |
16.00-18.00 |
- |
≤0.75 |
- |
- |
- |
- |
|
441 |
≤0.03 |
0.2-0.8 |
≤0.7 |
≤0.03 |
≤0.015 |
17.50-18.50 |
- |
≤0.5 |
0.1-0.5 |
≤0.025 |
- |
0.3+3C-0.9 |
We wrap the stainless steel products with anti-rust paper and steel rings to prevent damage.
Identification labels are tagged accordingto standard specification or customer’s instructions.
Special packing is available as per customer’s requirement.
Stainless Steel Coil Package
Stainless Steel Sheet / Stainless Steel Plate Package
Stainless Steel Strip Package
Shipment Package
Our company is based in Wuxi, gathering city of industrial stainless steel in China.
We specialized in stainless coils, sheets and plate, stainless steel pipe and fittings, stainless steel tubes, and also aluminum products and copper products.
Our products have been highly praised by our clients from Europe, America, the Middle East, African and Southeast Asia. We will offer competitive products and comprehensive service to customers.
Stainless Steel Grade: 201, 202, 202cu, 204, 204cu, 303, 304, 304L, 308, 308L, 309, 309s, 310, 310s, 316, 316L, 321, 347, 410, 416, 420, 430, 430F, 440, 440c,
Alloy Grade :Monel, Inconel, Hastolley, Duplex, Super Duplex, Titanium, Tantalum, High Speed Steel, Mild Steel, Aluminium, Alloy Steel, Carbon Steel, Special Nickel Alloys
In form of : Round Bars, Square Bars, Hexagonal Bars, Flat Bars, Angles, Channels, Profiles, Wires, Wire Rods, Sheets, Plates, Seamless Pipes, ERW Pipes, Flanges, Fittings,etc.
Q1: What is stainless?
A: Stainless means no marks on the steel surface, or a kind of steel that is not damaged by air or water and that does not change color, spotless, resistant to staining, rusting, the corrosive effect of chemicals.
Q2: Does stainless mean no rusting?
A: No, stainless means not easy to get stained or rusty, it has speical ability to reisist staining, rusting and corrosion.
Q3: Do you supply stainless steel sheets?
A: Yes, we supply different types of stainless steel sheets, with thickness ranges from 0.3-3.0mm. and in different finishes.
Q4: Do you accept cut to length service?
A: Of course, customer’s satisfaction is our top priority.
Q5: If i have a small order, do you accept small order?
A: Not a problem, your concern is our concern, small quantities are accepted.
Q6: How can you guarantee your product quality?
A: First, from the very start, we have already implemented a spirit to their mind, that is quality is life, our professional workers and staffs will follow up every step till the goods packed well and shipped out.
Q7: Will you pack the products?
A: Professional people do professional packing, we have different types of packing optional to customers, economic one or better one.
Q8: What do you need to know from customer before accurate quotation?
A: For an accurate quotation, we need to know grade, thickness, size, surface finish, color and quantity of your order, and also the destination of the goods. Customized product information will be needed more, like drawing, layout and plan. Then we will offer competitive quotation with the above information.
Q9: What kind of payment term you accpet?
A: We accept T/T, West union, L/C.
Q10: If this is a small order, will you delivery the goods to our agent?
A: Yes, we are born to solve problems of our customers, we will get the goods safely to your agent’s warehouse and send you the pictures.
Q11: Do you just make flat sheet? I want to make a fabrication for my new project.
A: No, we mainly produce stainless steel flat sheet surface treatment, at the same time, we manufacture customized metal finished product as per customer’s drawing and plan, our technician will take care of the rest.
Q12: How many coutries you already exported ?
A: Exported to more than 50 countries mainly from America, Russia, UK, Kuwait, Egypt, Iran,
Turkey, Jordan, etc.
Q13: How can I get some samples?
A: Small samples in store and can provide the samples for free. Catalgue is available, most
patterns we have ready samples in stock. Customized samples will take about 5-7days.
Q14: What is the delivery ?
A: Sample order’s delivery time is 5- 7 days. Container orders are about 15-20 days.
Q15: What is the application about your Products?
A: 1.elevator door/cabin or and escalator’s side-wall.
2.Wall cladding inside or outside meeting room/ restaurant.
3.Facade when cladding over something, like columns in the lobby.
4.Ceiling in the supermarket. 5.Decorative draws in some entertainment places.
Q16: How long Can You Guarantee for This Product/Finish?
A: Color guarantee for more than 10 years. Original materials quality certificate can
be provided.
