What is SUH409 material plate?

What is SUH409 material plate?

SUH409 is a Japanese Industrial Standards (JIS) designation for a stabilized, ferritic stainless steel plate (Type 409) known for good corrosion and oxidation resistance, excellent weldability, and formability, commonly used in automotive exhaust systems, catalytic converters, and heat exchangers due to its heat tolerance and cost-effectiveness compared to other stainless steels.

 

What is the chemical composition of Suh 409?

SUH 409 (or JIS 409) is a ferritic stainless steel, primarily iron, with key alloying elements including 10.5-11.75% Chromium (Cr) for corrosion resistance, stabilized with a maximum of 0.75% Titanium (Ti), and small amounts of Carbon, Manganese, Silicon, Phosphorus, Sulfur, and Nickel, offering good high-temperature performance for applications like automotive exhausts.

Element	Carbon	Manganese	Silicon	Chromium	Nickel	Phosphorus	Sulfur	Iron
Range (%)	≤ 0.08	0.30–0.60	0.50–1.00	10.50–11.50	≤ 0.50	≤ 0.04	≤ 0.03	Balanc

 

Mechanical Properties of 409 Stainless Steel Plate

Properties	Metric Unit	Imperial Unit
Tensile Strength	450-600 MPa	65-87 ksi
Yield Strength	205 MPa	30 ksi
Vickers Hardness	150-180 HV	150-180 HV
Brinell Hardness	150-180 HB	150-180 HB
Rockwell Hardness	B80-B90	B80-B90
Elongation	20%	20%
Elastic Modulus	200 GPa	29,000 ksi

 

Why Is SS 409 Plate Is Suitable For Heat Exchangers?
Items designed for heat exchangers should be able to withstand high fluctuating temperatures and pressures. The ASTM A240 Type 409 Plate is designed with a scaling resistance in temperatures ranging between 675 degrees C. For continuous service application, the ASME SA240 409 Stainless Steel Sheet can suffice in temperatures of 815 degrees C under intermittent conditions. These temperatures are dependent on the service requirements in different environments. These sheets like the SS 409 Perforated Sheet can be employed to project an aesthetical finish or provide sturdy grip for the movement of fluids and gases across the system.

 

We provide hot rolled 409 stainless steel plates, cold rolled 409 stainless steel plates, polished 409 stainless steel plates, and clad 409 stainless steel plates. We provide cutting, grinding, polishing, drilling, bending, patterning, heat treatment, and surface treatment services.

SUH409 Stainless Steel Plate Specifications

Standard	ASTM A240
Grade	0Cr11Ti, 1.4512, SUH409
Length	2400 mm (94.49 inch) to 6000 mm (236.22 inch), Customized
Thickness	6 mm (0.24 inch) to 150 mm (5.9 inch), Customized
Width	1200 mm (47.24 inch) to 2000 mm (78.74 inch)
Surface Finish	2B, BA, No.1, No.3, No.4, Patterned, Polished
Technique	Hot Rolling, Cold Rolling, Annealing
Form	Checker Plate, Clad Plate, Cut-to-Size Plate and Sheet, Flat Plate and Sheet, Perforated Plate and sheet, Tread Plate

 

Click to get a free sample

 

Possible alternative grades to 409 stainless steel

Grade	Why it might be chosen instead of 409 stainless steel
3CR12	Similar corrosion resistance, easier welding and more readily available than 409, particularly in heavy sections. (409 may have better drawability than 3CR12.)
304	Better corrosion resistance and heat resistance but at higher cost.
321	Higher heat resistance than 409 or 304.
Aluminised steel	Lower resistance to exhaust gases, but at lower cost than stainless steel grade 409.

 

Business Terms

Terms	Specifications
Minimum Order Quantity：	1 Tons
Price:	To be negotiated
Packaging Details:	As Requested
Delivery Time:	Within 7-10 Working Days
Payment Terms:	T/T, L/C, Credit Card
Supply Ability:	100000 Tons per month
Certification:	RoHS, BIS, SABS, tisi, KS, JIS, ISO9001

 

 

Packaging and shipping

1. To prevent moisture, our Stainless Steel Plates are wrapped with plastic film or coated with rust-proof oil.
2. To prevent deformation during transportation, we use pallets and metal frames to support the Stainless Steel Plates.
3. We apply protective film or plastic wrap on the plate surface to reduce friction and scratches.
4. If you need custom packaging, please contact us!