Why Choose pipingmaterial.sa for Stainless Steel 321 Sheet in Saudi Arabia
SS 321 Ex-Stock KSA
Dammam • Jubail • Al Khobar
Aramco and ADNOC Approved
SABIC • KNPC • PDO Vendors
Top 10 Supplier Quotes
No Commission • No Login
EN 10204 3.1 MTC
ASTM A240 • IGC Test • PMI
HR and CR 321 Sheet
2B • No.4 • BA Finish
26 Years Industry Experience
Oil and Gas • Petrochemical • GCC
Stainless Steel 321 Sheet Summary
  • 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
321 Stainless Steel Sheet

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

Supplied To:
Dammam Al Jubail Riyadh Jeddah Yanbu Al Khobar Ras Al-Khair Tabuk Dhahran Rabigh Sudair
Provide:
Saudi Aramco Approved ADNOC Approved SABIC Approved KNPC Approved EN 10204 3.1 MTC AMS 5510 Certified

Technical Specification of Stainless Steel 321 Sheet

View Stainless Steel 321 Sheet Suppliers in Saudi Arabia who Offers Various Surface Finish For Rough Terrain

Plate Sizes
SS 321 Plate Sizes
  • Diameter: 900 to 2400 mm
  • Custom Size Available
  • Length: 3000 to 12000 mm
Sheet Sizes
SS 321 Sheet Sizes
  • Thickness: 0.02 to 4.0 mm
  • Length:3000 to 12000 mm
  • Width:900 to 2400 mm
Coil Sizes
DIN 1.4541 Coil Sizes
  • Length: Custom
  • Cut to Size
  • Diameter: 610-2000 mm
Strip Sizes
AMS 5510 Strip Sizes
  • Cut to Length
  • Size: 4mm to 3000mm
  • Length: Custom
Testing
INOX 321 Strips Testing
  • Third party inspection test
  • Chemical, Mechanical test
  • Visual inspection test
Finish
AISI 321 Shim Stock Finish
  • Mirror, Glossy
  • Sandblasted
  • Brushed
Origin
INOX 410 Sheet Origin
  • American, Korean
  • Indian
  • Japanese, European
Process
INOX 321 Flat Sheet Process
  • Cold Rolled
  • Forged
  • Hot Rolled
Welding
SUS 410 Gr 321 Plate Welding
  • PLASMA
  • GMAW, SAW
  • GTAW
Services
410 Stainless Steel Coil Services
  • Slitting
  • Blanking
  • Polishing, Bending
Hardness
321 SS Rolling Sheets Hardness
  • Half Hard, Soft
  • Hard
  • Quarter
Types
INOX 321 Rolling Plate Types
  • 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.

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Types of 321 Stainless Steel Sheet

Purchase Large Stock of Sheets from Stainless Steel 321 Sheet Suppliers in Saudi Arabia at Best Price

INOX 410 Sheet
INOX 410 Sheet
SUS 410 Gr 321 Plate
SUS 410 Gr 321 Plate
410 Stainless Steel Coil
410 Stainless Steel Coil
INOX 321 Strips
INOX 321 Strips
AISI 321 Shim Stock
AISI 321 Shim Stock
DIN 1.4541 Rolling Sheets
DIN 1.4541 Rolling Sheets
AMS 5510 321 Flat Sheet
AMS 5510 321 Flat Sheet
INOX 321 Rolling Plate
INOX 321 Rolling Plate
Stainless Steel 321 Flat Shim
Stainless Steel 321 Flat Shim
321 Stainless Steel Perforated Plate
321 Stainless Steel Perforated Plate
321 SS Hot Rolled Plate
321 SS Hot Rolled Plate
SS 321 Cold Rolled Plate
SS 321 Cold Rolled Plate
SS 321 Foil
SS 321 Foil
AISI 321 Chequered Plate
AISI 321 Chequered Plate
SUS 321 Slitting Coil
SUS 321 Slitting Coil

Sales Agents in Following Locations

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Asia
12 Countries
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Malaysia
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Vietnam
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Philippines
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Brunei
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Cambodia
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Laos
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Myanmar
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Mongolia
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Indonesia
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Singapore
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Thailand
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Taiwan
Stockist

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)
0.30.40.80.91.00.50.60.71.21.52.03.0
GradeDimension (mm)Weight (kg/sheet)
3211000 x 20004.766.3412.714.315.97.939.5211.119.023.831.747.6
1250 x 25007.439.9119.822.324.812.414.917.329.737.249.674.3
1524 x 3048 (5’ x 10’)11.114.729.533.236.818.422.125.844.255.373.3110.5

Stainless Steel 321 Flat Shim Chemical Composition

Cr

17.0- 19.0%

Ni

9.0- 13.0%

Mn

2.00%

Si

1.00%

Mo

0.50%

Cu

0.50%

P

.045%

S

0.03%

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

PropertiesValues
Hardness95 (HR B)
217(HB)
Tensile Strength515 MPa
Elongation40%
Yield Strength205 MPa

Approvals

ADNOC, Saudi Aramco, SABIC and GCC Approved Stainless Steel 321 Sheet Suppliers

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.

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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
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Germany / Europe (EN / DIN)

  • WNR 1.4541 - Standard 321
  • WNR 1.4878 - 321H Equivalent
  • X6CrNiTi18-10 - DIN Name
  • EN 10028-7 - Pressure Vessel
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Japan (JIS)

  • JIS SUS 321
  • JIS SUS 321H
  • JIS G 4304 - HR Sheet
  • JIS G 4305 - CR Sheet
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UK / British Standard

  • BS 321 S 31
  • BS En 58B - Older Std
  • BS 1501-321
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India (IS / BIS)

  • IS 6911 Grade 321
  • IS 6527 SUS 321
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South Korea (KS)

  • KS STS 321
  • KS D 3705 - HR Plate

Know Our Distribution Network

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Europe
9 Countries
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Azerbaijan
Reseller
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Germany
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Netherlands
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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)ThicknessWidth
1200.090036
960.125024
1440.040048
960.012024
1200.125036
960.016024
1200.025048
1200.020036
1200.080036

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

TemperatureThermal Expansion
°F°Cin/in °Fcm/cm °C
68 - 183220 - 100011.4 * 10 - 620.5 * 10 - 6
68 - 111220 - 60010.5 * 10 - 618.9 * 10 - 6
68 - 21220 - 1009.2 * 10 - 616.0 * 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.

Cutting
Plasma, laser, waterjet or shear cutting. Laser preferred for 0.3–12 mm sheets.
Forming
Cold forming: bend radius 1–2× thickness. Work hardens moderately.
Welding
TIG (GTAW) preferred. Filler: AWS ER321 or ER347. No post-weld anneal needed.
Heat Treatment
Solution anneal at 1010–1120°C. Air or water quench. No sensitization in 421–820°C range.
Passivation
Nitric acid passivation per ASTM A967 restores corrosion resistance after machining.

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 - 8701500 - 1600

Need AISI 321 Plate Stockists in Al Jubail or Al Khobar?

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Thickness Chart of INOX 321 Strips

ThicknessWidth
0.125036
0.090036
0.080036
0.040048
0.025048
0.020036
0.016024
0.012024

HSN Code of 321 Stainless Steel

GradeHSN Code
SS 3217219

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, MuscatJebel Ali, Doha, Lusail, RiyadhSohar, Amman, Manama, Beirut
Lebanon, SyriaSCZone, Iraq, JordanYemen, Dammam, Turkey
MENA Countries
Algeria, TunisiaEgypt, MoroccoLibya, Cairo, Casablanca
GCC Countries
Qatar, Saudi ArabiaBahrain, Kuwait, OmanUnited 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.

Oil and Gas Refinery
Petrochemical Plants
Aerospace Engine Liners
Exhaust Systems and Manifolds
Desalination Plants
Power Generation
Pressure Vessel Fabrication
Food and Beverage Processing
Heat Exchangers
Cryogenic Equipment
Pharmaceutical Industry
LNG Storage Tanks

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

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321 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

PropertiesValues
Specific Heat 0-100°C (J/kg.K)500
Elastic Modulus (GPa)193
Density (kg/m3)8027
Thermal Conductivity (W/m.K)at 100°C16.1
at 500°C22.2
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

SS 321 Sheet
Max Service Temp
900°C
Intermittent / 800°C continuous
Sensitization Resistance
Excellent
Ti binds carbon - no chromium carbide precipitation
Weld Zone Safety
Safe
No PWHT needed in corrosive media after welding
Creep Resistance
High
Preferred under sustained load at elevated temperature
Formability
Good
Slightly reduced ductility due to Ti addition
Stock Availability
Medium
15–25% price premium over SS 304
SS 304 Sheet
Max Service Temp
700°C
Intermittent / 600°C continuous
Sensitization Resistance
Poor
Prone to intergranular corrosion at 450–850°C
Weld Zone Safety
Risk
PWHT required in aggressive acid / chloride service
Creep Resistance
Medium
Not preferred above 600°C under sustained load
Formability
Excellent
Best deep drawing, spinning and bending performance
Stock Availability
Best
Most economical - widest global availability

Client Reference SS 321 Sheet

Submit your RFQ now and receive quotes directly from KNPC Approved Stainless Steel 321 Sheet Suppliers in Saudi Arabia

🛢️ SABIC Petrochemical Complex - Al Jubail
SS 321 Hot Rolled Plate (10 mm × 1500 × 6000 mm)
Saudi Arabia
🏭 Saudi Aramco Refinery - Ras Tanura
AISI 321 cold rolled 2B sheet (2 mm, 1219 × 2438 mm)
Saudi Arabia
✈️ Aerospace MRO Facility - Riyadh
AMS 5510 certified SS 321 Sheet
Saudi Arabia
🔥 Steam Reformer Unit - Rotterdam Refinery
SS 321H hot rolled plate (12 mm × 2000 × 6000 mm)
Netherlands
⚗️ Sulphuric Acid Plant - Gauteng
AISI 321 cold rolled 2B sheet (3 mm × 1500 × 3000 mm)
South Africa
✈️ Jet Engine Test Cell - Toulouse
AMS 5510 / EN 1.4541 SS 321 Sheet (1.5 mm, BA finish)
France
⚛️ Nuclear Power Station - Ontario
321 SS Hot Rolled Plate (6 mm × 1500 × 6000 mm)
Canada
🏗️ LNG Liquefaction Plant - Gladstone
SS 321 HR plate (8 mm × 2000 × 8000 mm)
Australia
💉 Biopharmaceutical Facility - Singapore
SS 321 cold rolled No.4 + electropolished sheet (2 mm × 1219 × 2438 mm)
Singapore

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