- Size Range: 5mm x 5mm to 200mm x 200mm
- Length: 1 metre, 3 metre, 6 metre & Random
- Condition: Hot Rolled, Cold Drawn, Bright, Forged
- Grades: 304, 304L, 316, 316L, 321, 410, 17-4 PH
- Standard: ASTM A276, A479, A484, A582
- UNS: S30400, S31600, S32100, S41000, S17400
- Forms: Solid Square Bar, Bright Bar, Forged Block
- Finish: Black, Pickled, Polished, Peeled, Ground
- Tolerance: h9 to h11 (cold finished), per ASTM A484
- Edge: Sharp Square, Rounded Corner on Request
- Available Brands: Outokumpu, Jindal, Acerinox, Walsin
- Origin: India, Europe, Japan, Korea, China
- MTC: EN 10204 3.1 / 3.2 with PMI Report
- RFQ: Send Inquiry

SABIC Approved Stainless Steel Square Bar Suppliers in Saudi Arabia
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- Stainless Steel Square Bar Specification
- Stainless Square Bar Stock Weight Chart
- SS Square Rod Grades
- 316 Stainless Steel Square Bar Cross-Section and Passive Layer
- Ready Stock of SS Square Bars
- SS Hollow Square Bar Size Chart
- Stainless Square Rod Application
- Stainless Square Rod Services
- 304 Stainless Steel Square Bar Demand in Saudi Projects by Grade
- Stainless Steel Square Box Section Dimension
- Stainless Steel 304l Square Bar Quality Control and Testing
- SS Square Bar Tolerance Chart
- 4 Things to Check Before Ordering SS Square Bar
- Stainless Steel Square Rod Chemical Composition
- Mechanical Properties of Stainless Polished Square Bar
- SS Hollow Square Bar Equivalent Grades
- SS Square Bar Hsn Code
- How to Select the Right Stainless Steel Square Bar
- SS Square Bar Standard Sizes
- Stainless Steel Square Bars Maintenance Tips
- ADNOC, Saudi Aramco, SABIC and KNPC Approved Stainless Steel Square Bar Suppliers
SUS 304 Square Bar and AISI 316L Square Rod Stock in Large Diameter
pipingmaterial.sa is a free Saudi sourcing platform, backed by 26 years of steel trading experience. Buyers post one enquiry and get matched with trusted mill agents and bright-bar finishers stocking square bar in grades 304, 316, 321, and 410. Replies usually come from sellers in Dammam, Riyadh, Jeddah, and Al Khobar within the same day
Stainless Steel Square Bar Specification
SABIC approved stainless steel square bar suppliers in KSA across multiple industrial sectors
- Diameter: 3 to 800mm
- Length: 1- 6.0 m
- Custom Size Available
- H8, H9, H10,
- H11, H12, H13
- K9, K12
- Melting Point: 1400 to 1530°C
- Density: 8.0 g/cm³
- Temprature Range:870°C (1600°F)
- ASTM: A479 | ASME: SA479
- ASTM: A276 | ASME : SA276
- Other: EN, ASTM, DIN, API, UNS, ASME, SUS, GB, AISI
- Japanese, European
- American
- Indian, Korean
- PH
- Hardened and Tempered
- Annealed
- Forged
- Rolled
- Step-Down Tests
- Microstructure
- PMI, Upset Testing
- MTC 10204 3.1/ 3.2
- Third Party Inspection Report
- 100% Radiography Test Report
Get Competitive Quotes from Top 10 Verified Stainless Steel Square Bar Stockists in Saudi Arabia
No login required · No commission · Direct contact with actual stainless steel square bar suppliers in Saudi Arabia
Send RFQStainless Steel Square Bar — Grade Specification Guide
Select a grade below to view its square bar specification.
Stainless Steel Square Bar
SS 201 Square Bar
Manganese-substituted austenitic grade for cost-sensitive fabrication work.
SS 202 Square Bar
Higher manganese content than 201, used where moderate corrosion resistance is acceptable.
SS 303 Square Bar
Sulphur-added free-machining grade, ideal for high-speed CNC turning operations.
SS 304H Square Bar
Higher carbon content than standard 304 for improved high-temperature creep strength.
SS 304L Square Bar
Extra-low carbon variant of 304, resists sensitisation and carbide precipitation after welding.
SS 304 Square Bar
The most widely used stainless square bar grade, balancing cost, formability and corrosion resistance.
SS 316L Square Bar
Extra-low carbon version of 316, resists weld-decay and is preferred for heavy welded sections.
SS 316 Square Bar
Adds 2–3% molybdenum over 304 for superior resistance to chlorides and marine atmospheres.
SS 316H Square Bar
High-carbon 316 variant suited for elevated-temperature pressure-retaining parts.
SS 309 Square Bar
High chromium-nickel content suited for furnace components and heat-treatment fixtures.
SS 310 Square Bar
Excellent oxidation resistance up to 1150°C, widely used in furnace and kiln components.
SS 316Ti Square Bar
Titanium-stabilised 316 variant resists intergranular corrosion after welding or high-temp exposure.
SS 317 Square Bar
Extra molybdenum over 316 gives higher resistance to chlorides and reducing acids.
SS 347 Square Bar
Niobium-stabilised grade ideal for welded parts placed into high-temperature service.
SS 321 Square Bar
Titanium-stabilised against sensitisation for welded applications in the 375–900°C range.
SS 410 Square Bar
General-purpose martensitic grade, heat-treatable for shafts, valve parts and cutlery.
SS 416 Square Bar
Sulphur-added free-machining variant of 410, suited for precision-turned components.
SS 420 Square Bar
Higher carbon than 410, hardenable to high levels for cutting tools and blades.
SS 430 Square Bar
Ferritic grade with good formability, commonly used in decorative and trim applications.
SS 430F Square Bar
Free-machining ferritic variant of 430, suited for fast CNC production runs.
SS 431 Square Bar
Higher nickel martensitic grade offering increased strength for shafts and pump components.
SS 630 Square Bar
UNS designation for 17-4 PH; precipitation-hardened for high strength and corrosion resistance.
17-4 PH Square Bar
Aged to tensile strength up to 1310 MPa, widely used in aerospace and valve stem applications.
15-5 PH Square Bar
Vacuum-melted variant of 17-4 PH with improved transverse toughness and cleanliness.
F51 Square Bar
Duplex grade offering roughly twice the strength of 316L along with high chloride resistance.
F60 Square Bar
Lean duplex grade providing a cost-effective alternative for moderate chloride environments.
Find Saudi Aramco Approved Stainless 316 Square Stock at Best Price in Dammam, Check Weight Chart
Stainless Square Bar Stock Weight Chart
KNPC approved trusted stainless steel square bar suppliers in Saudi Arabia for bulk and custom orders
| Size (mm) | 18 | 20 | 16 | 25 | 28 | 22 | 30 |
|---|---|---|---|---|---|---|---|
| Weight/m (kg) | 2.59 | 2.49 | 2.05 | 5 | 6.27 | 3.87 | 7.2 |
| Weight/ft (kg) | 0.79 | 0.76 | 0.62 | 1.52 | 1.91 | 1.18 | 2.19 |
| Size (mm) | 32 | 40 | 36 | 38 | 56 | 45 | 50 |
| Weight/m (kg) | 8.19 | 12.8 | 10.37 | 11.55 | 25.08 | 16.2 | 20 |
| Weight/ft (kg) | 2.5 | 3.9 | 3.16 | 3.52 | 7.65 | 4.94 | 6.1 |
SS Square Rod Grades
Looking for SS square bar suppliers in Dammam? We deliver across all grades and sizes

- Stainless Steel 304
- SS 304l
- 316 Stainless Steel
- 316l
- SS 321
- Stainless Steel 317
- Stainless 321
- SS 347
- Stainless Steel 904l
316 Stainless Steel Square Bar Cross-Section and Passive Layer
Ready Stock of SS Square Bars
SS 304 square bar stockist in Yanbu maintains ready stock for quick dispatch

- Grades: 304, 316, 321, 410
- Custom cut-to-size & cut-to-length
- Huge ready stock available

- Multiple sizes & tolerances
- Mill-traceable material
- Fast delivery times

- Finish: Bright Polished
- Competitive pricing
- Suitable for all applications
Stainless Steel Square Bar Supply Data
Size Tolerances & Range
- 12 mm to 50 mm
- EN 10059 - 2003
- Tolerance as per product & size required
Supply Conditions
- Heat Treatment (for selected grades only)
- Annealed
- Solution Annealed
- Strain Hardened
- Quenched & Tempered
- Double Ageing
- Double Tempering
Testing
- Tensile Test
- Hardness Test
- Impact Test
- Ultrasonic Test
- MPI Test
Length Tolerance
- Cut to length with tolerance -0/+10 mm
- Straightness: up to 0.25mm per metre
Packing
- Bars packed in bundles
- Each bundle colour coded by grade
- Wrapped in HDPE and strapped
- Identification labels on every bundle
Material Grades (AISI / ASTM)
- Grades customizable to different standards as per client requirement
- 201, 202, 303, 304, 304H, 304L, 316, 316H
- 316L, 309, 310, 316Ti, 317, 347, 321, 410
- 416, 420, 430, 430F, 431, 630, 17-4 PH
- 15-4 PH, F51, F60
ADNOC Approved Stockists of SS 304l Square Hollow Section Offering Most Popular Sizes Like 6mm, 10mm, 12mm etc, Refer Size Chart
SS Hollow Square Bar Size Chart
Leading stainless steel square bar suppliers in Saudi Arabia offering cut-to-size services
| AISI Grade | Size |
|---|---|
| 304 | 1/2 in x 1/2 in |
| 316L | 40 mm x 40 mm |
| 304 | 10 mm x 10 mm |
| 316L | 10 mm x 10 mm |
| 316L | 6 mm x 6 mm |
| 304 | 7/8 in x 7/8 in mm |
| 304 | 20 mm x 20 mm |
| 316L | 20 mm x 20 mm |
| 304 | 1 in x 1 in |
| 304 | 50 mm x 50 mm |
| 304 | 40 mm x 40 mm |
| 316L | 50 mm x 50 mm |
Buy From Stainless Steel 410 Hollow Square Bar in PH, H&T, Annealed Condition With Heat Treatment Services
Stainless Square Rod Services
Saudi Aramco approved stainless steel square bar with full mill traceability
Trusted supplier of stainless steel square bar in Riyadh, we offer competitive prices
Refer to the Stainless Steel Square Box Section Tolerance Chart, Dimensions and Material Properties
Stainless Steel Square Box Section Dimension
Trusted SABIC approved SS square bar suppliers, we offer multiple grades and tolerances
| Size (mm) | Weight (kg/m) | Size (mm) | Weight (kg/m) | Size (mm) | Weight (kg/m) | Size (mm) | Weight (kg/m) |
|---|---|---|---|---|---|---|---|
| 15 × 15 | 1.784 | 3 × 3 | 0.071 | 30 × 30 | 7.137 | 60 × 60 | 28.548 |
| 19 × 19 | 2.863 | 7 × 7 | 0.389 | 38 × 38 | 11.451 | 75 × 75 | 44.606 |
| 20 × 20 | 3.172 | 8 × 8 | 0.508 | 40 × 40 | 12.688 | 80 × 80 | 50.752 |
| 18 × 18 | 2.569 | 6 × 6 | 0.285 | 35 × 35 | 9.714 | 70 × 70 | 38.857 |
| 16 × 16 | 2.03 | 4 × 4 | 0.127 | 32 × 32 | 8.12 | 63 × 63 | 31.474 |
| 22 × 22 | 3.838 | 10 × 10 | 0.793 | 45 × 45 | 16.058 | 90 × 90 | 64.233 |
| 24 × 24 | 4.568 | 11 × 11 | 0.96 | 48 × 48 | 18.271 | 95 × 95 | 71.568 |
| 26 × 26 | 5.361 | 13 × 13 | 1.34 | 53 × 53 | 22.275 | ||
| 28 × 28 | 6.217 | 14 × 14 | 1.554 | 56 × 56 | 24.868 | ||
| 25 × 25 | 4.956 | 12 × 12 | 1.142 | 50 × 50 | 19.825 | 100 × 100 | 79.3 |
Stainless Steel 304l Square Bar Quality Control and Testing
leading stockist of SS 316 square bar in Al Khobar with various testing methods
Chemical Analysis
PMI check on every heat against ASTM A276 limits
Tensile & Yield Test
Sample pulled per ASTM A370 to confirm strength & elongation
Hardness Test
Confirms heat-treat condition is correct.
Dimensional Check
Size, squareness & straightness verified per ASTM A484 tolerance.
IGC Test
ASTM A262 on request for 304L/316L.
Surface Inspection
Seams, laps and surface defects.
SS Square Bar Tolerance Chart
Obtain Stainless Steel Square Bar Stockists in Saudi Arabia Who Supplies Various Tolerance at Wholesale Price
| Size (mm) | >120 <=160 | >16 <=26 | >200 | >160 <=200 | >90 <=120 | >76 <=90 | >64 <=76 | >38 <=51 | >51 <=64 | >26 <=38 | <=16 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Permitted Variation Chart | Re-Rolled | Out of Section (mm) | - | 0.5 | - | - | - | - | 1.1 | 0.8 | 0.9 | 0.6 | 0.3 |
| Width Across Flats +/- (mm) | - | 0.3 | - | - | - | - | 0.7 | 0.5 | 0.6 | 0.4 | 0.2 | ||
| Primary Rolled | Out of Section (mm) | 3 | - | 4.5 | 3.8 | 2.3 | 2 | - | - | - | - | - | |
| Diameter +/- (mm) | 2 | - | 3 | 2.5 | 1.5 | 1.3 | - | - | - | - | - |
4 Things to Check Before Ordering SS Square Bar
ADNOC approved stainless steel square bar with custom cut-to-length options
Reliable SS square bar suppliers in Jubail with fast delivery times
Stainless Steel Square Rod Chemical Composition
stainless steel square bar manufacturer in Saudi Arabia, we ensure consistent quality grades
| Stainless Steel Square Bar Grades | S (%) max | Ni (%) | Si (%) max | Cr (%) max | P (%) max | Mo (%) | Mn (%) max | C (%) max |
|---|---|---|---|---|---|---|---|---|
| SS 304 | 0.03 | 8.00 - 10.50 | 0.75 | 18.00 - 20.00 | 0.045 | — | 2.00 | 0.08 |
| SS 310 | 0.03 | 19.00 - 22.00 | 1.50 | 24.00 - 26.00 | 0.045 | — | 2.00 | 0.25 |
| SS 304L | 0.03 | 8.00 - 12.00 | 0.75 | 18.00 - 20.00 | 0.045 | — | 2.00 | 0.03 |
| SS 316 | 0.03 | 10.00 - 14.00 | 0.75 | 16.00 - 18.00 | 0.045 | 2.00 - 3.00 | 2.00 | 0.08 |
| SS 304H | 0.03 | 8.00 - 12.00 | 1.00 | 18.00 - 20.00 | 0.045 | — | 2.00 | 0.04 - 0.10 |
| SS 310S | 0.03 | 19.00 - 22.00 | 1.50 | 24.00 - 26.00 | 0.045 | — | 2.00 | 0.08 |
| SS 316L | 0.03 | 10.00 - 14.00 | 0.75 | 16.00 - 18.00 | 0.045 | 2.00 - 3.00 | 2.00 | 0.03 |
| SS 316Ti | 0.03 | 10.00 - 14.00 | 0.75 | 16.00 - 18.00 | 0.045 | 2.00 - 3.00 | 2.00 | 0.08 |
| SS 317 | 0.03 | 11.00 - 15.00 | 1.00 | 18.00 - 20.00 | 0.045 | 3.00 - 4.00 | 2.00 | 0.10 |
| SS 317L | 0.03 | 11.00 - 15.00 | 1.00 | 18.00 - 20.00 | 0.045 | 3.00 - 4.00 | 2.00 | 0.03 |
| SS 321 | 0.03 | 9.00 - 12.00 | 1.00 | 17.00 - 19.00 | 0.045 | — | 2.00 | 0.08 |
| SS 321H | 0.03 | 9.00 - 12.00 | 1.00 | 17.00 - 19.00 | 0.045 | — | 2.00 | 0.04 - 0.10 |
| SS 410 | 0.03 | — | 1.00 | 11.50 - 13.50 | 0.04 | — | 1.00 | 0.15 |
| SS 446 | 0.03 | — | 1.00 | 23.00 - 28.00 | 0.04 | — | 1.50 | 0.20 |
| SS 347 | 0.03 | 9.00 - 13.00 | 1.00 | 17.00 - 19.00 | 0.045 | — | 2.00 | 0.08 |
| SS 904L | 0.03 | 24.00 - 26.00 | 1.00 | 19.00 - 23.00 | 0.045 | 4.00 - 5.00 | 2.00 | 0.02 |
17-4 PH Square Bars
Aged tensile strength up to 1310 MPa
15-5 PH Square Bar
Better toughness than 17-4 PH
SS 630 Square Bars
UNS code for 17-4 PH grade
F51 Square Bar
Duplex, 2x strength of 316L
F60 Square Rods
Lean duplex, cost-effective option
Mechanical Properties of Stainless Polished Square Bar
Top-rated stainless steel square bar suppliers in Saudi Arabia for all applications
SS Hollow Square Bar Equivalent Grades
SS square bar suppliers in Jeddah offering various grades and custom tolerances on request
| STANDARD | WNR. | UNS | JIS | EN | AFNOR | BS | GOST |
|---|---|---|---|---|---|---|---|
| SS 304L | 1.4306 / 1.4307 | S30403 | SUS 304L | X2CrNi18-9 / X2CrNi19-11 | Z3CN18-10 | 3304S11 | 03X18H11 |
| SS 304H | 1.4301 | S30409 | - | - | - | - | - |
| SS 304 | 1.4301 | S30400 | SUS 304 | X5CrNi18-10 | Z7CN18-09 | 304S31 | 08X18H10 |
| SS 310 | 1.4841 | S31000 | SUS 310 | X15CrNi25-20 | - | 310S24 | 20Ch25N20S2 |
| SS 310S | 1.4845 | S31008 | SUS 310S | X8CrNi25-21 | - | 310S16 | 20Ch23N18 |
| SS 316L | 1.4404 / 1.4435 | S31603 | SUS 316L | X2CrNiMo17-12-2 / X2CrNiMo18-14-3 | Z3CND17-11-02 / Z3CND18-14-03 | 316S11 / 316S13 | 03Ch17N14M3 / 03Ch17N14M2 |
| SS 316 | 1.4401 / 1.4436 | S31600 | SUS 316 | X5CrNiMo17-12-2 / X3CrNiMo17-13-3 | Z7CND17-11-02 | 316S31 / 316S33 | - |
| SS 317L | 1.4438 | S31703 | SUS 317L | X2CrNiMo18-15-4 | - | - | - |
| SS 316Ti | 1.4571 | S31635 | SUS 316Ti | X6CrNiMoTi17-12-2 | Z6CNDT17-123 | 320S31 | 08Ch17N13M2T |
| SS 317 | 1.4449 | S31700 | SUS 317 | - | - | - | - |
| SS 347 | 1.4550 | S34700 | SUS 347 | X6CrNiNb18-10 | - | - | 08Ch18N12B |
| SS 321 | 1.4541 | S32100 | SUS 321 | X6CrNiTi18-10 | - | - | - |
| SS 321H | 1.4878 | S32109 | SUS 321H | X12CrNiTi18-9 | - | - | - |
| SS 410 | 1.4006 | S41000 | SUS 410 | X12Cr13 | - | 410S21 | - |
| SS 446 | 1.4762 | S44600 | - | - | - | - | - |
| SS 904L | 1.4539 | N08904 | SUS 904L | X1NiCrMoCu25-20-5 | Z2 NCDU 25-20 | 904S13 | STS 317J5 |
Material Inspection Facility in Following Locations
Austenitic Stainless Steel Square Bar Grades
Non-Magnetic, Corrosion-Resistant Grades for General to High-Temperature Use
Low-cost, low-nickel grade
Manganese-substituted, economical
Free-machining for CNC parts
High-temp creep strength
For elevated-temp pressure parts
Furnace & fixture applications
Oxidation resistant to 1150°C
Stabilised against weld corrosion
Extra Mo for chloride resistance
Stabilised for welded parts
Anti-sensitisation in welded use
SS Square Bar HSN Code
How to Select the Right Stainless Steel Square Bar
Select Material and Grades
- Choose 304, 316, 321 or 410 based on use
- 316 / 316L for coastal or chloride-exposed sites
- 410 for wear-resistant, heat-treatable parts
Consider Dimension
- Confirm exact size and length needed
- Check tolerance class required for machining
- Common sizes ship faster from ex-stock
Surface Finish Requirement
- Hot rolled / black finish for structural use
- Cold drawn / bright finish for tight tolerance
- Polished finish for visible or hygienic use
SS Square Bar Standard Sizes
Metric Sizes (mm)
- 6, 8, 10, 12, 13, 14, 15, 16, 18, 20mm
- 22, 25, 30, 35, 40, 45, 50mm
- 60, 70, 75, 80, 90, 100mm
- 120, 150mm
Imperial Sizes (in.)
- 1/4", 5/16", 3/8", 1/2"
- 5/8", 3/4", 7/8", 1"
- 1 1/4", 1 1/2", 1 3/4"
- 2", 4"
Stainless Steel Square Bars Maintenance Tips
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Saudi Aramco Approved Suppliers
- Outokumpu
- Acerinox S.A.
- Jindal Stainless Limited
- Viraj Profiles Limited
ADNOC & SABIC Approved
- Outokumpu
- Aperam SA
- POSCO
- Jindal Stainless Limited
KNPC & QatarGas Approved
- Outokumpu
- POSCO
- Acerinox S.A.
International & Quality Approvals
- Outokumpu Oyj
- Aperam SA
- Jindal Stainless Limited
Martensitic & Ferritic Square Bar Grades
Heat-Treatable and Magnetic Grades for Shafts, Tools and Wear Parts
SS 410 Square Bar
- Heat-treatable martensitic grade
Stainless Steel 416 Square Bar
- Free-machining martensitic grade
SS 420 Square Bar
- Hardenable, used for cutting tools
Stainless 431 Square Bar
- High strength for shafts & pumps
SS 430 Square Bar
- Ferritic, good formability
Stainless Steel 430F Square Bar
- Free-machining ferritic variant
Most Searched Stainless Steel Square Bar Questions
- 316 : 2-3% molybdenum for chloride resistance
- 304 works fine for dry, indoor or inland use
- 304 costs less than 316
- Formula: Side(mm) × Side(mm) × 0.008
- Result = kg per metre
- Applies to austenitic grades (≈8.0 g/cm³ density)
- 304 / 316 (austenitic): mostly non-magnetic when annealed
- 410 / 420 (martensitic): magnetic
- Hot rolled: suits larger structural sizes
- Cold drawn: tighter tolerance & smoother finish
- Cold drawn preferred for machining
- Hot rolled bar: ASTM A276 mill tolerance
- Cold finished bar: h9-h11 per ASTM A484
- 304L / 316L: weld without sensitisation
- Standard 304 / 316: can be welded with post-weld care
