ASTM A240 Stainless Steel 321 / 321H Sheets & Plates Supplier

ASTM A240 Stainless Steel 321 321H Sheets & Plates Supplier

ASTM A240 Stainless Steel 321 / 321H Sheets & Plates Supplier & Exporter, 321 stainless steel sheet, 321 stainless sheet, 321 stainless steel plate, 321 stainless plate suppliers,

Stainless Steel UNS S32100 / S32109 Sheets & Plates, SS Sheets & Plates, Stainless Steel Sheets & Plates Supplier

ASME SA 240 Stainless Steel DIN 1.4541 / 1.4878 Sheets & Plates Supplier

At Delta Steel, we are dealers and suppliers of Stainless Steel 321/321H Sheets and Plates in both the Indian and international markets. We customize the design of our sheets and plates using high-quality raw materials. Our expert team ensures each product is made with great care, resulting in high standards of usability, reliability, and durability. We offer a wide range of sheets and plates in various sizes and dimensions. Each product undergoes multiple tests during production to maintain quality.

Features-

• Corrosion resistant
• High tensile strength
• Dimensional accurate and Precise design

Packaging and documentation-

We pay more attention while delivery of products, so we use proper packing method. We usually use a wooden case or pallet to avoid damage or rust or according to customers demand. The company also provides all necessary documents during the shipment of products. This will include-
• Quality measurement reports
• Fumigation reports
• Lab test reports
• Guarantee letter
• Heat treatment charts
• Commercial invoice and more.

What is the difference between 321 and 321H stainless steel sheet?

321 and 321H stainless steel sheets have different strengths and corrosion resistance. 321 is not heat-treatable and is commonly used in applications that need weldability and toughness. In contrast, 321H is heat-treated, providing higher strength at high temperatures and better formability. It’s often chosen for more demanding conditions where heat resistance is important. The right choice between the two depends on the specific needs of the application, such as temperature, strength, corrosion resistance, and ease of forming.

What is 321 stainless steel sheet made of?

The 321 stainless steel sheet is a blend of chromium, nickel, and titanium, known for its excellent resistance to corrosion and heat. It’s ideal for high-temperature environments because it doesn’t warp or harden under extreme conditions. The high levels of chromium and titanium give it a unique, appealing look, making it suitable for both indoor and outdoor use. This top-quality steel is widely used in industries like aerospace, where strength, precision, and durability are essential for complex projects.

We also supply make of SAIL / ESSAR / JINDAL / TATA / BHUSHAN/ INDIAN / IMPORTED etc material.

Sr. No. Size (in mm) Thickness Specification Manufacturer
1 1000 x 2000 
1220 x 2440 
(4′ x 8′)
1250 x 2500 
1500 x 3000 To 6000 
2000 x 4000 To 6000		 0.3 mm To 120 mm A – 240 Jindal
Sail
Shah Alloys 
Imported Etc.

Specifications

Standards Designation
ASTM A 240
ASME SA 240
STANDARD UNS WERKSTOFF NR.
SS 321 S32100 1.4541
SS 321H S32109 1.4878

Composition ranges for 321 grade stainless steel Sheets & Plates

Grade
C
Mn
Si
P
S
Cr
Mo
Ni
N
Other
321
min.
max
–
0.08
2.00
0.75
0.045
0.030
17.0
19.0
–
9.0
12.0
0.10
Ti=5(C+N)
0.70
321H
min.
max
0.04
0.10
2.00
0.75
0.045
0.030
17.0
19.0
–
9.0
12.0
–
Ti=4(C+N)
0.70
347
min.
max
0.08
2.00
0.75
0.045
0.030
17.0
19.0
–
9.0
13.0
–
Nb=10(C+N)
1.0

Mechanical properties of 321 grade stainless steel Plates & Sheeets

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
321
515
205
40
95
217
321H
515
205
40
95
217
347
515
205
40
92
201

Physical properties of 321 grade stainless steel in the annealed condition

Grade
Density (kg/m3)
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)
0-100°C
0-315°C
0-538°C
at 100°C
at 500°C
321
8027
193
16.6
17.2
18.6
16.1
22.2
500
720

Grade specifications for 321 grade stainless steel

Grade
UNS No
Old British
Euronorm
Swedish SS
Japanese JIS
BS
En
No
Name
321
S32100
321S31
58B, 58C
1.4541
X6CrNiTi18-10
2337
SUS 321
321H
S32109
321S51
–
1.4878
X10CrNiTi18-10
–
SUS 321H
347
S34700
347S31
58G
1.4550
X6CrNiNb18-10
2338
SUS 347

Possible alternative grades to 321 grade stainless steel

Grade Why it might be chosen instead of 321
304L The requirement is for resistance to intergranular corrosion, not for high temperature strength
3CR12 Only mild “high temperature” environment is present… up to about 600°C.
304H Only mild “high temperature” environment is present… up to about 800°C.
310 The temperature of the operating environment is up to about 1100°C – too high for 321 or 321H.
S30815
(253MA)		 The temperature of the operating environment is up to about 1150°C- too high for 321 or 321H.

Other grades of Stainless Steel 321 / 321H Sheets Plates

Stainless Steel 321 Sheets Plates
Stainless Steel 321H Sheets Plates
SS 321 Sheets Plates
SS 321H Sheets Plates
Stainless Steel 321 UNS S32100 Sheets Plates
SS 321H UNS S32109 Sheets Plates
Stainless Steel 321 Din 1.4541 Sheets Plates
SS 321H Din 1.4878 Sheets Plates

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