Stainless Steel 409L Sheet Weight Chart, Specifications & Dimensional Guide

This guide includes all the information, such as the SS 409L Sheet Weight Chart, dimensional requirements, chemical compositions, mechanical properties, and tolerances of A240 ASTM. It is made to be used by engineers and fabricators and also industrial buyers to ensure they can determine the weight of materials, cost, and logistics.

The SS 409L sheet finds extensive use in automotive exhaust systems, heat exchanger and structural applications where low carbon is needed. The reduced amount of carbon in 409L decreases the carbide formation during welding leading to improved corrosion resistance. The weight chart in kg and mm will be detailed to make sure the material is planned accurately.

What is a Stainless Steel 409L Sheet Weight Chart

Stainless Steel 409L Sheet Weight Chart in Kg and mm is a reference table that is used to calculate the theoretical weight of sheets depending on:

• Thickness (mm)
• Width (mm)
• Length (mm)
• Density of SS 409L (approximately 7.7 g/cm³)

This chart is used to estimate the shipping weight, fabrication load, and project costing by fabricators, procurement teams, and engineers.

The general formula used for calculation is:

Weight (kg)=Length (m)×Width (m)×Thickness (mm)×7.7

Weight (kg)=Length (m)×Width (m)×Thickness (mm)×7.7
Another demand of many buyers is the Stainless Steel 409L Sheet weight chart in PDF form to be carried with them during procurement and site planning.

Stainless Steel 409L Sheets Specifications

It is essential to mention that before considering dimensional and weight data, one needs to comprehend technical standards of SS 409L sheets.

Grade Specifications for Stainless Steel 409L Sheets

Stainless Steel 409L Sheet sheets are low-carbon ferritic stainless steel sheets produced in compliance with the international standards, including ASTM A240 / A240M and ASME SA-240. They have better weldability, good corrosion resistance, and oxidation resistance to temperatures of 800degC and have stabilizing elements such as titanium and niobium to prevent sensitisation and durability. The SS 409L sheets have excellent formability, average strength, and affordability, which have made them favorable in automotive exhaust systems, furnace parts, and other structures that require heat resistance.

Parameter	Details	Description / Scope
Material Grade	Stainless Steel 409L	Low-carbon ferritic stainless steel with improved weldability and corrosion resistance
ASTM Standard	ASTM A240 / A240M	Standard specification for chromium and chromium-nickel stainless steel plate, sheet, and strip
ASME Standard	ASME SA-240	Boiler and pressure vessel code material specification
UNS Designation	S40900 / S40910	Unified Numbering System identification
EN Number	1.4512 (X2CrTiNb12)	European standard equivalent grade
DIN Equivalent	X2CrTiNb12	German DIN material designation
JIS Equivalent	SUS409L	Japanese Industrial Standard equivalent
AFNOR Equivalent	X2CrTi12	French AFNOR designation
Material Type	Ferritic Stainless Steel	Magnetic, cost-effective with good heat resistance
Chemical Composition	Cr: 10.5-11.75%, Ti: 6xC-0.75%, C: 0.03% max	Low carbon for better weldability and formability
Stabilizing Elements	Titanium (Ti), Niobium (Nb)	Prevents sensitization and intergranular corrosion
Density	7.75-7.85 g/cm³	Standard density for ferritic stainless steels
Product Forms	Sheet, Plate, Coil, Strip	Hot rolled, cold rolled, annealed conditions
Thickness Range	0.3 mm – 8.0 mm	Standard stock; custom thicknesses available
Width Range	914 mm – 1500 mm	Slit widths from 25 mm available
Length Range	2000 mm – 6000 mm	Cut-to-length options
Surface Finishes	No.1, 2B, 2D, BA, No.4, HL, 6K, 8K	Mill, polished, brushed finishes
Edge Condition	Mill Edge, Slit Edge, Round Edge	Production method dependent
Tensile Strength	380-450 MPa (min)	Annealed condition
Yield Strength	170-205 MPa (min)	0.2% offset
Elongation	20-25% min	Excellent formability
Hardness	160-190 HB max	Annealed condition
Applications	Automotive exhaust, mufflers, catalytic converters	Heat-resistant structural components
Corrosion Resistance	Good atmospheric, moderate marine	Excellent oxidation resistance up to 800°C
Weldability	Excellent	Low carbon minimizes carbide precipitation
Formability	Good	Suitable for bending, drawing operations
Compliance	ASTM, ASME, EN, ISO standards	Automotive, industrial, architectural specs
Typical Uses	Exhaust systems, furnace parts, tubing	Cost-effective alternative to 304/430

These standards specify manufacturing standards, chemical requirements, mechanical performance and tolerances.

Chemical Properties of SS 409L Sheets

The chemical content of SS 409L is well managed to offer quality corrosion, improved weldability and stability of structure. This is because of its low carbon content, which reduces precipitation of carbide during the welding process and chromium, which improves the oxidation and corrosion resistance in moderate environments.

Element	Composition (%)
Chromium (Cr)	10.5 – 11.75
Carbon (C)	0.03 max
Manganese (Mn)	1.00 max
Silicon (Si)	1.00 max
Phosphorus (P)	0.045 max
Sulfur (S)	0.03 max
Iron (Fe)	Balance

The low carbon is such that it does not form as carbide during the welding process and enhances resistance to corrosion.

Mechanical Properties of SS 409L Sheets

The mechanical properties are important in the performance of SS 409L sheets in natural structural and high-temperature use. This grade has a balanced strength and good ductility thus providing reliable load-bearing capacity and good formability and weldability.

Property	Value
Tensile Strength	450 MPa (min)
Yield Strength	205 MPa (min)
Elongation	22% (min)
Hardness	183 HB (max)

These are the qualities that render SS 409L to moderate strength structural and high-temperature applications.

SS 409L Sheet Equivalent Grades 

The equivalent grades of SS 409L sheet are widely used in international procurement to maintain uniform conformity in terms of material compatibility and standardization of different regions. This grade fits UNS S40930, EN 1.4510, and DIN X2CrTi12 enabling those who buy, design, and produce them globally to procure similar materials without jeopardizing performance or specifications.

Standard	Equivalent Grade
UNS	S40930
EN	1.4510
DIN	X2CrTi12

Equivalent grades ensure compatibility in international projects.

Stainless Steel 409L Sheet Dimensional Chart

Stainless Steel 409L Sheet Dimensional Chart defines most popular thicknesses, which are stocked and their widths and lengths are the common ones that are convenient to handle, cut, and ship in the industry. These sizes are commonly offered by manufacturers and suppliers and there is an option of mill edges or trimmed edges depending on the quantity of orders. Lighter components are best served by finer gauges such as 0.5 mm with heavier structural components by heavier gauges to a maximum of 5.0 mm, make sure with your supplier to know their actual stock it has or what they can cut to in that thickness to suit your project requirements.

Thickness (mm)	Standard Width (mm)	Standard Length (mm)
0.5	1000	2000
0.8	1000	2000
1.0	1250	2500
1.5	1250	2500
2.0	1500	3000
3.0	1500	3000
4.0	1500	3000
5.0	1500	3000

There are custom dimensions depending on the requirements of the project.

SS 409L Sheet Weight Chart (Kg)

The Stainless Steel 409L Sheet Weight Chart in Kg is shown below and has been calculated using the 1000 mm x 2000 mm standard sheet.

Thickness (mm)	Weight (kg per sheet)	Weight (kg/m²)
0.3	4.7	2.35
0.5	7.8	3.93
0.8	12.5	6.25
1.0	15.7	7.85
1.2	18.8	9.42
1.5	23.5	11.78
2.0	31.4	15.70
2.5	39.2	19.63
3.0	47.1	23.55
4.0	62.8	31.40
5.0	78.5	39.25
6.0	94.2	47.10
8.0	125.6	62.80

Weight values are theoretical and may slightly vary depending on manufacturing tolerance.

ASTM A240 SS 409L Sheet Tolerances

According to ASTM A240, tolerances for stainless steel sheets depend on thickness and width. Typical thickness tolerance ranges:

• Up to 1.0 mm: ±0.10 mm
• 1.0 mm to 2.0 mm: ±0.15 mm
• Above 2.0 mm: ±0.25 mm
• Flatness and width tolerances are also defined under ASTM A240 standards.

Stainless Steel 409L Sheet Weight Chart in PDF

Many engineers and procurement managers prefer downloading the Stainless Steel 409L Sheet weight chart in PDF for:

• On-site fabrication reference
• Cost estimation
• Shipping weight calculation
• Tender documentation

A printable PDF version typically includes:

• Dimensional chart
• Weight calculation formula
• ASTM A240 tolerances
• Chemical and mechanical properties

Conclusion

These stainless steel 409L sheets are terrific because of its low-carbon ferritic alloy that provides high weldability, oxidation up to 800degC, and low cost characteristics in the automotive exhaust system, furnace components and structural. This is an all inclusive manual that offers accurate weight data (1000×2000 mm sheets of 4.7 kg to 0.3 mm to 125.6 kg to 8.0 mm), dimensional data (0.3-8.0 mm thickness, 914-1500 mm widths), chemical / mechanical data (ASTM A240 standards), and equivalent grades (UNS S40900 / S40930, EN 1.4512, DIN X2CrTiNb1

SS 409L sheets are highly suitable in planning the material and the weight formula which is given [Weight (kg) = L(m) x W(m) x T(mm) x 7.85] can be used by engineers and fabricators to ensure the correct cost, shipping and load calculations with the standard sizes and custom requirements. Whether it is tolerance, surface finishes (2B, No.4, HL), or mechanical strengths (450 MPa tensile min) this resource simplifies compliance and project implementation and points out the reliability SS 409L has demonstrated as a 304/430 substitute where extreme high temperatures are needed.