- Standard: ASTM A240 / ASME SA240 / AMS 5510
- UNS Number: S32100 (321) / S32109 (321H)
- WNR / EN: 1.4541 (321) / 1.4878 (321H)
- Types: Hot Rolled (HR), Cold Rolled (CR), Shim, Foil, Coil, Strip, Perforated, Chequered
- Thickness: 0.3 mm to 100 mm (Sheet and Plate)
- Width: Up to 2500 mm
- Finish: 2B, No.1, No.4, BA, Mirror Polished, HR Pickled
- Temperature Range: 427°C to 816°C (intermittent to 900°C)
- Origin: Japan, Europe, USA, India, Korea
- MTC: EN 10204 3.1 / 3.2, NABL Lab Reports
- RFQ: contact@pipingmaterial.sa

Direct Buy AISI 321 Plate from Suppliers at the Very Best Price in Saudi Arabia
Stainless Steel 321 Sheet grade built for high-temperature service between 427°C and 816°C, It is the preferred material for exhaust systems, pressure vessels, heat exchangers and petrochemical equipment on Saudi Aramco, ADNOC and SABIC projects. pipingmaterial.sa connects Saudi buyers directly with SS 321 stockists in Dammam, Jubail, Riyadh and Al Khobar with no middleman, no commission
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- Technical Specification of Stainless Steel 321 Sheet
- Types of 321 Stainless Steel Sheet
- 321 Stainless Steel Sheet Weight Chart
- Mechanical Properties of 321 Stainless Steel Perforated Plate
- Stainless Steel 321 Sheet and plate International Equivalent Grades
- SS 321 Sheet Metal Size Chart
- AISI 321 Shims Mean Coefficient of Thermal Expansion
- Processing and Welding of Stainless Steel 321 Sheet
- Temperature Range of AISI 321 Chequered Plate
- Thickness Chart of INOX 321 Strips
- Browse All Stainless Steel 321 Sheet Products
- HSN Code of 321 Stainless Steel
- Applications of Stainless Steel 321 Sheet in Saudi Arabia
- Quality Control Standards for SS 321 Sheet in Saudi Arabia Projects
- 321 SS Hot Rolled Plate Physical Properties
- What is the Difference Between Stainless Steel 321 and 304 Sheet?
Technical Specification of Stainless Steel 321 Sheet
View Stainless Steel 321 Sheet Suppliers in Saudi Arabia who Offers Various Surface Finish For Rough Terrain
- Diameter: 900 to 2400 mm
- Custom Size Available
- Length: 3000 to 12000 mm
- Thickness: 0.02 to 4.0 mm
- Length:3000 to 12000 mm
- Width:900 to 2400 mm
- Length: Custom
- Cut to Size
- Diameter: 610-2000 mm
- Cut to Length
- Size: 4mm to 3000mm
- Length: Custom
- Third party inspection test
- Chemical, Mechanical test
- Visual inspection test
- Mirror, Glossy
- Sandblasted
- Brushed
- American, Korean
- Indian
- Japanese, European
- Cold Rolled
- Forged
- Hot Rolled
- PLASMA
- GMAW, SAW
- GTAW
- Slitting
- Blanking
- Polishing, Bending
- Half Hard, Soft
- Hard
- Quarter
- Coil
- Sheet, Foil
- Strip
Get SS 321 Sheet Price from Stockists in Dammam
Looking for ADNOC Approved Stainless Steel 321 Sheet Suppliers in Saudi Arabia? Submit one inquiry and our network connects you with top 10 verified stockists , Send your RFQ to pipingmaterial.sa.
Request Free QuoteTypes of 321 Stainless Steel Sheet
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Sales Agents in Following Locations
ADNOC Approved Stockists of AMS 5510 Stainless Steel Sheet Provide Variety of Lengths and Widths Refer Weight Chart
321 Stainless Steel Sheet Weight Chart
| SS 321 Sheet | Thickness (mm) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.3 | 0.4 | 0.8 | 0.9 | 1.0 | 0.5 | 0.6 | 0.7 | 1.2 | 1.5 | 2.0 | 3.0 | ||
| Grade | Dimension (mm) | Weight (kg/sheet) | |||||||||||
| 321 | 1000 x 2000 | 4.76 | 6.34 | 12.7 | 14.3 | 15.9 | 7.93 | 9.52 | 11.1 | 19.0 | 23.8 | 31.7 | 47.6 |
| 1250 x 2500 | 7.43 | 9.91 | 19.8 | 22.3 | 24.8 | 12.4 | 14.9 | 17.3 | 29.7 | 37.2 | 49.6 | 74.3 | |
| 1524 x 3048 (5’ x 10’) | 11.1 | 14.7 | 29.5 | 33.2 | 36.8 | 18.4 | 22.1 | 25.8 | 44.2 | 55.3 | 73.3 | 110.5 | |
Stainless Steel 321 Flat Shim Chemical Composition
Cr
Ni
Mn
Si
Mo
Cu
P
S
Mechanical Properties of 321 Stainless Steel Perforated Plate
Check Stainless Steel 321 Sheet Stockists in Saudi Arabia Who Deliver High Strength Coils For Tough Jobs
| Properties | Values |
|---|---|
| Hardness | 95 (HR B) |
| 217(HB) | |
| Tensile Strength | 515 MPa |
| Elongation | 40% |
| Yield Strength | 205 MPa |
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Saudi Aramco Approved SS 321 Sheet Suppliers
- Outokumpu Oyj – Espoo, Finland
- Acerinox S.A. – Madrid, Spain
- POSCO – Pohang, South Korea
- Nippon Yakin Kogyo Co., Ltd. – Tokyo, Japan
ADNOC Approved SS 321 Sheet Suppliers
- ThyssenKrupp Materials International – Essen, Germany
- Aperam S.A. – Luxembourg, Europe
- TISCO (Taiyuan Iron & Steel Group) – Taiyuan, China
- Baosteel Group Corporation – Shanghai, China
SABIC Approved SS 321 Sheet Suppliers
- Columbus Stainless – Middelburg, South Africa
- North American Stainless (NAS) – Ghent, Kentucky, USA
- DAEKYUNG Corporation (DKC) – Seoul, South Korea
- Acroni d.o.o. – Jesenice, Slovenia
PDO, EDO and KNPC Approved SS 321 Sheet Suppliers
- ArcelorMittal Stainless – Luxembourg / USA
- Aperam South America – Timóteo, Minas Gerais, Brazil
- Sumitomo Metal Industries – Osaka, Japan
- MEXINOX (Acerinox Group) – San Luis Potosí, Mexico
Stainless Steel 321 Sheet and plate International Equivalent Grades
AISI 321 (UNS S32100) is the titanium-stabilized equivalent to EN 1.4541 and JIS SUS321. When sourcing WNR 1.4541 Sheet or SUS 321 from different mill origins, always verify the titanium content matches the specification.
USA (AISI / ASTM / UNS)
- AISI 321 - Standard Grade
- UNS S32100 - UNS Designation
- AISI 321H - High Carbon Variant
- UNS S32109 - 321H UNS
- AMS 5510 - Aerospace Sheet
Germany / Europe (EN / DIN)
- WNR 1.4541 - Standard 321
- WNR 1.4878 - 321H Equivalent
- X6CrNiTi18-10 - DIN Name
- EN 10028-7 - Pressure Vessel
Japan (JIS)
- JIS SUS 321
- JIS SUS 321H
- JIS G 4304 - HR Sheet
- JIS G 4305 - CR Sheet
UK / British Standard
- BS 321 S 31
- BS En 58B - Older Std
- BS 1501-321
India (IS / BIS)
- IS 6911 Grade 321
- IS 6527 SUS 321
South Korea (KS)
- KS STS 321
- KS D 3705 - HR Plate
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SS 321 Sheet Metal Size Chart
Standard sheet and plate sizes stocked by pipingmaterial.sa verified suppliers in Saudi Arabia. Custom cutting available for all sizes.
| Length in (Inch) | Thickness | Width |
|---|---|---|
| 120 | 0.0900 | 36 |
| 96 | 0.1250 | 24 |
| 144 | 0.0400 | 48 |
| 96 | 0.0120 | 24 |
| 120 | 0.1250 | 36 |
| 96 | 0.0160 | 24 |
| 120 | 0.0250 | 48 |
| 120 | 0.0200 | 36 |
| 120 | 0.0800 | 36 |
AISI 321 Shims Mean Coefficient of Thermal Expansion
Find Trusted Stainless Steel 321 Sheet Stockists in Saudi Arabia Who Offers Plates With High Thermal Properties at Best Price
| Temperature | Thermal Expansion | ||
|---|---|---|---|
| °F | °C | in/in °F | cm/cm °C |
| 68 - 1832 | 20 - 1000 | 11.4 * 10 - 6 | 20.5 * 10 - 6 |
| 68 - 1112 | 20 - 600 | 10.5 * 10 - 6 | 18.9 * 10 - 6 |
| 68 - 212 | 20 - 100 | 9.2 * 10 - 6 | 16.0 * 10 - 6 |
Processing and Welding of Stainless Steel 321 Sheet
Find 321 Stainless Steel Perforated Plate Ideal for Toughness and Strength in Sub-Zero Temperature
SS 321 was specifically designed for welded assemblies. The titanium stabilization eliminates the need for post-weld annealing in most applications, making it ideal for complex fabricated structures in Saudi Arabian petrochemical plants.
Welding Guidelines
- Recommended process: GTAW (TIG), GMAW, SMAW
- Filler metal: ER321 (preferred) or ER347
- Preheat: Not required for thin sections
- Interpass temperature: Max 175°C
Quality Control Tests
- ASTM A262 Practice E - Intergranular Corrosion Test
- PMI (XRF) - Positive Material Identification
- Ferrite measurement (Ferritescope)
- Dye Penetrant Test (DPT) on welds
Temperature Range of AISI 321 Chequered Plate
| Temperature Range | |
|---|---|
| °C | °F |
| 815 - 870 | 1500 - 1600 |
Need AISI 321 Plate Stockists in Al Jubail or Al Khobar?
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Send RFQ NowThickness Chart of INOX 321 Strips
| Thickness | Width |
|---|---|
| 0.1250 | 36 |
| 0.0900 | 36 |
| 0.0800 | 36 |
| 0.0400 | 48 |
| 0.0250 | 48 |
| 0.0200 | 36 |
| 0.0160 | 24 |
| 0.0120 | 24 |
Browse All Stainless Steel 321 Sheet Products
HSN Code of 321 Stainless Steel
| Grade | HSN Code |
|---|---|
| SS 321 | 7219 |
Call Now for a Free Sample, Which Can Be Arranged From the Cities Specified Below
| Middle East Countries | ||
|---|---|---|
| Sharjah, Ajman, Umm Al Quwain | Saudi Arabia, Dubai, Abu Dhabi, | Ras Al Khaimah, Jeddah, Fujairah |
| Al Khobar, Al Jubail, Muscat | Jebel Ali, Doha, Lusail, Riyadh | Sohar, Amman, Manama, Beirut |
| Lebanon, Syria | SCZone, Iraq, Jordan | Yemen, Dammam, Turkey |
| MENA Countries | ||
| Algeria, Tunisia | Egypt, Morocco | Libya, Cairo, Casablanca |
| GCC Countries | ||
| Qatar, Saudi Arabia | Bahrain, Kuwait, Oman | United Arab Emirates (UAE) |
Applications of Stainless Steel 321 Sheet in Saudi Arabia
321 stainless steel sheet is the material of choice where sustained elevated temperature service, welding without sensitization, and corrosion resistance are simultaneously required.
Quality Control Standards for SS 321 Sheet in Saudi Arabia Projects
Chemical Analysis
Per ASTM E1019, E353, A751 - full heat and product analysis with Ti verification per 5×C minimum requirement.
PMI Testing
XRF Positive Material Identification on every piece - mandatory for ADNOC and Saudi Aramco approved projects.
ASTM A262 IGC Test
Intergranular Corrosion Test (Practice E) - verifies titanium stabilization is effective against sensitization.
Dimensional Inspection
Full dimensional check per ASTM A480 - thickness, width, length, flatness and surface condition documented.
Ultrasonic Testing
UT per ASTM A578 for thick plates. Identifies internal laminations and inclusions before fabrication.
Third Party Inspection
TPI by Bureau Veritas, SGS, Intertek or Lloyd's Register - mandatory for Saudi Aramco, ADNOC and SABIC orders.
Ready to Order SS 321 Sheet? Get Your Quote Today from Riyadh Stockists
Finding PDO and EDO Approved Stainless Steel 321 Sheet Suppliers in Saudi Arabia is now simple, send one inquiry to contact@pipingmaterial.sa and our team connects you with actual stockists .
Get Free Quote321 SS Hot Rolled Plate Physical Properties
Discover 321 Stainless Steel Sheet Traders in Saudi Arabia Who Offer High Density Plates With Enhanced Physical Properties for Field Deployment
| Properties | Values | |
|---|---|---|
| Specific Heat 0-100°C (J/kg.K) | 500 | |
| Elastic Modulus (GPa) | 193 | |
| Density (kg/m3) | 8027 | |
| Thermal Conductivity (W/m.K) | at 100°C | 16.1 |
| at 500°C | 22.2 | |
| Electrical Resistivity (nΩ.m) | 720 | |
Frequently Asked Questions Stainless Steel 321 Shee
What is the Difference Between Stainless Steel 321 and 304 Sheet?
Performance Comparison of SS 321 vs SS 304
Connect with Top 10 SS 321 Sheet Suppliers in Saudi Arabia
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