Four Things You Get With Every SS Square Pipe Order
A554 Tolerances Held
Side, wall and corner radius checked on each lot.
Three Surface Options
Mirror, satin and matt polish on the same sections.
Cut to Your List
Pieces cut to length with smooth, burr-free ends.
Scratch-Safe Packing
Polished lengths wrapped, then bundled or crated.
SS Square Pipe Quick Facts
Stainless Steel Square Pipe Specification
ASTM A554 limits and paperwork codes to check at inward inspection.
Side Tolerance
±0.38 mm up to 31.8 mm; ±0.51 mm to 63.5 mm; ±0.76 mm to 139.7 mm
Wall Tolerance
±10% of the ordered wall
Corner Radius
Max 2.4 mm (wall to 1.24 mm); 3.2 mm (to 1.65 mm); 3.6 mm (to 2.11 mm)
Twist Limit
2.1 mm per metre for 12.7 – 38.1 mm sides; 2.6 mm per metre up to 63.5 mm
Straightness
2.1 mm in any 1 m (0.075 in. in 3 ft)
Squareness
Out-of-square within 0.006 × the longest side
Inside Weld Bead
Left in, controlled or removed, as ordered
Standard Length
6 m (20 ft nominal); 3 m and cut pieces to order
Packing
Walls up to 1.65 mm boxed, crated or bundled; tag shows size, grade and A554
JIS G3446 Option
SUS304TKA / SUS304TKC for Japan and ASEAN drawings; tensile 520 MPa min
CE Approved / PED Approved
CE and PED 2014/68/EU documents on request
HS Code
7306.61 (India 7306 61 00; EU and UK 7306 61 10)
Stainless Steel Square Pipe Weight Calculator
Enter side, wall and length to get kg per metre and total weight.
SS 304 Square Tube Supplier in India With Cut to Sizes at Best Price
Square tube is rarely used at full length. Railings, frames and trolleys all need it cut, so we supply SS 304 square tube both as 6 m lengths and as pieces cut to your list.
Every Stainless Steel Square Pipe supplier in India quotes 304. We also carry 304L, 316, 316L, 202, 201 and 430, all made to ASTM A554. Pick mirror, satin or matt finish in sides from 10 × 10 mm to 150 × 150 mm. CE approved and PED approved paperwork is issued for European orders, and an EN 10204 3.1 certificate travels with every lot. Send your sizes and we will quote a per-kg rate.
Cut-to-Size Service
Against your cutting list
Cut Length Tolerance (A554)
+1.6 to +4.8 mm, never short
End Condition
Smooth and burr-free
Quote Basis
Per kg or per piece
Email your cutting list with grade and finish, and we will price it per kg and per piece, ex-Mumbai.
SS Square Pipe and Tube Types
SS square pipe types by grade, finish, shape and weld.
SS 304 Square Pipe
- 18 – 20% chromium, 8 – 11% nickel
- Indoor and general outdoor work
- The default grade on most enquiries
Stainless Steel 316 Square Tube
- 2 – 3% molybdenum added
- Coastal, marine and poolside jobs
- Mirror or satin polish
316L Square Tube
- Carbon held to 0.035% max
- Chosen where welding is heavy
- Same sections as 304 and 316
Grade 202 SS Square Pipe
- 4 – 6% nickel, 7.5 – 10% manganese
- Dry indoor furniture and trims
- Lower cost per kg than 304
AISI 201 / 430 Square Pipe
- 201: chromium-manganese-nickel
- 430: ferritic and magnetic
- Budget interior fit-outs
Mirror Finish SS Square Pipe
- Fine-grit polish, then buffed
- Highly reflective surface
- Lobby and showroom rails
Hairline Satin Finish Square Tube
- Brushed, directional grain
- Hides fingerprints better
- Lift and kitchen interiors
ERW Welded Stainless Square Pipe
- Strip formed and seam welded
- No filler metal in the weld
- Outside weld flash removed
SS Square Pipe vs Square Tube vs SHS
As a Stainless Steel Square Pipe supplier in Pune, we hear all three names.
INIndia trade
Square Pipe
Trade name for the welded square section.
USASTM A554
Square Tube
The standard calls it mechanical tubing.
GBUK, EU and Australia
SHS or Box Section
Square hollow section; RHS when rectangular.
POOn your order
Same Product
Order by side × wall × length in mm.
Stainless Steel Square Pipe Manufacturer in Mumbai, Supplying Since 2007
Tell us the side, wall and finish, and we build the lot to your list.
Buy 1 Inch SS Square Pipe in Mirror and Satin Finish, Refer Weight Chart
Our 1 inch pipe is 25 × 25 mm, mirror or satin. We are a Stainless Steel Square Pipe manufacturer in India.
Mirror
Buffed, reflective polish
- Trade grit400 / 600, then buffed
- Surface lookReflective, no grain
- FingerprintsShow easily
- Scratch repairNeeds re-buffing
- Typical jobLobbies, showrooms
VS
Satin
Brushed grain; hairline has longer lines
- Trade grit180 / 240 / 320
- Surface lookFine linear grain
- FingerprintsLess visible
- Scratch repairBlend along the grain
- Typical jobLifts, kitchens, rails
1 Inch Section
25 × 25 mm
Usual Walls
1.0 / 1.2 / 1.5 / 2.0 mm
Weight at 1.2 mm Wall
0.906 kg/m
One 20 ft Length
5.52 kg at 1.2 mm
Need a 1 inch SS square pipe price? Send the wall, finish and quantity for today’s rate per kg.
Stainless Steel Square Pipe Sizes and Weight Chart
Theoretical 304 weights from a Stainless Steel Square Pipe stockist in India.
| Size (mm) | Trade Inch Size | 1.0 mm Wall | 1.2 mm Wall | 1.5 mm Wall | 2.0 mm Wall | 3.0 mm Wall | 4.0 mm Wall | 5.0 mm Wall |
|---|---|---|---|---|---|---|---|---|
| 12.7 × 12.7 | 1/2″ | 0.371 | 0.438 | 0.533 | – | – | – | – |
| 15 × 15 | – | 0.444 | 0.525 | 0.642 | – | – | – | – |
| 19 × 19 | 3/4″ | 0.571 | 0.678 | 0.833 | 1.078 | – | – | – |
| 20 × 20 | – | 0.603 | 0.716 | 0.880 | 1.142 | – | – | – |
| 25 × 25 | 1″ | 0.761 | 0.906 | 1.118 | 1.459 | 2.094 | – | – |
| 30 × 30 | – | 0.920 | 1.096 | 1.356 | 1.776 | 2.569 | – | – |
| 38 × 38 | 1-1/2″ | 1.174 | 1.401 | 1.737 | 2.284 | 3.331 | – | – |
| 40 × 40 | – | 1.237 | 1.477 | 1.832 | 2.411 | 3.521 | 4.568 | 5.551 |
| 50 × 50 | 2″ | 1.554 | 1.858 | 2.308 | 3.045 | 4.473 | 5.836 | 7.137 |
| 60 × 60 | – | – | 2.238 | 2.783 | 3.680 | 5.424 | 7.105 | 8.723 |
| 75 × 75 | 3″ | – | – | 3.497 | 4.631 | 6.852 | 9.008 | 11.102 |
| 80 × 80 | – | – | – | 3.735 | 4.948 | 7.327 | 9.643 | 11.895 |
| 100 × 100 | 4″ | – | – | 4.687 | 6.217 | 9.231 | 12.180 | 15.067 |
| 120 × 120 | – | – | – | – | – | 11.134 | 14.718 | 18.239 |
| 150 × 150 | 6″ | – | – | – | – | 13.989 | 18.524 | 22.997 |
SS Square Tube Wall Thickness
A Stainless Steel Square Pipe stockist in Mumbai converts gauge to mm.
22 Gauge
0.711 mm BWG
0.711 mm SWG
20 Gauge
0.889 mm BWG
0.914 mm SWG
18 Gauge
1.245 mm BWG
1.219 mm SWG
16 Gauge
1.651 mm BWG
1.626 mm SWG
14 Gauge
2.108 mm BWG
2.032 mm SWG
12 Gauge
2.769 mm BWG
2.642 mm SWG
11 Gauge
3.048 mm BWG
2.946 mm SWG
10 Gauge
3.404 mm BWG
3.251 mm SWG
SS 304 Square Tube Stockist Serving Ahmedabad With 19 Years of Shelf Inventory
Common sections are held ready, so small lots do not wait for a mill run.
SS 304 Square Pipe Price per Kg
Stainless steel square pipe price is quoted per kg, not per length. Compare stainless steel square tube suppliers in Saudi Arabia per 20 feet.
SS 304 Square Tube Chemical Composition
ASTM A554 chemistry limits for SS 304 square pipe, grade MT-304.
MT-316
Cr 16.0 – 18.0% · Ni 10.0 – 14.0% · Mo 2.0 – 3.0%
MT-304L / MT-316L
Carbon 0.035% max
MT-430 (ferritic)
Cr 16.0 – 18.0% · Ni 0.50% max · C 0.12% max
202 (UNS S20200)
Cr 17.0 – 19.0% · Ni 4.0 – 6.0% · Mn 7.5 – 10.0%
SS 202 vs 304 vs 316 Square Pipe
All three shine alike at first, but salt and moisture separate them.
202
UNS S20200 · EN 1.4373
- Nickel4.0 – 6.0%
- Manganese7.5 – 10.0%
- MolybdenumNone
- ASTM A554 listingNot listed; chemistry per A240
- Cost per kgLowest of the three
- Order it forDry indoor furniture and trims
- Poor fit forCoastal or chloride exposure
304
UNS S30400 · EN 1.4301
- Nickel8.0 – 11.0%
- Manganese2.00% max
- MolybdenumNone
- ASTM A554 listingMT-304
- Cost per kgMiddle
- Order it forIndoor and general outdoor work
- Poor fit forSea water contact
316
UNS S31600 · EN 1.4401
- Nickel10.0 – 14.0%
- Manganese2.00% max
- Molybdenum2.0 – 3.0%
- ASTM A554 listingMT-316
- Cost per kgHighest of the three
- Order it forCoastal, marine and poolside work
- Poor fit forBudget-led dry interiors
Stainless Steel Square Tube Mechanical Properties
ASTM A554 supplementary S1 and S2 limits for MT-304, applied when ordered.
517MPa min
Tensile Strength (75 ksi)
207MPa min
Yield Strength (30 ksi)
35% min
Elongation in 50 mm (2 in.)
90HRB max
Hardness (192 HB max)
MT-316: tensile / yield / elongation
517 / 207 MPa · 35%
MT-304L and MT-316L
483 / 172 MPa · 35%
MT-430 (ferritic)
414 / 241 MPa · 20%
SS Square Pipe Welding Rod and Filler Wire
Filler wire by grade, from a Stainless Steel Square Pipe supplier in Hyderabad.
TIG and MIG Filler Wire to AWS A5.9
Stainless Steel Box Section Exporter in India Shipping to Dammam, Saudi Arabia
Every export crate carries the size, grade and heat number on its tag.
SS 304 Square Pipe Equivalent Grades
These are the closest national matches, so check limits against your drawing.
US
UNS
S30400
EU
EN 10088
1.4301 (X5CrNi18-10)
JP
JIS
SUS304
GB
BS
304S31 / 304S15
FR
AFNOR
Z7CN18-09
RU
GOST
08Kh18N10
UNS and EN numbers for the other square pipe grades we supply:
304L
UNS S30403
EN 1.4307 / 1.4306
316
UNS S31600
EN 1.4401
316L
UNS S31603
EN 1.4404
202
UNS S20200
EN 1.4373
201
UNS S20100
EN 1.4372
430
UNS S43000
EN 1.4016
Is SS Square Pipe Magnetic?
Magnet pull depends on the grade family and how corners were formed.
316 / 316L
Least pull, even after forming.
304 / 304L
Non-magnetic annealed; corners and seam pull weakly.
202 / 201
Non-magnetic annealed; pulls after cold forming.
430
Ferritic. Strong pull throughout.
A magnet only spots 430. These three checks confirm the grade:
Mill Test Certificate
Chemistry per heat
PMI / XRF Check
Reads nickel and molybdenum
Third-Party Witness
Witnessed before packing
Does SS Square Pipe Rust?
As a Stainless Steel Square Pipe supplier in Mangalore, we suggest 316 near the coast.
Brown surface stain; cosmetic, not structural.
Mostly coastal sites, from salt deposits.
316; 304 and 430 are not advised there.
Soap or mild detergent, then clean water.
Steel wool, bleach or chloride cleaners.
Stains less than a rough surface.
SS Square Pipe Applications
SS square pipe for railing, furniture, kitchens, machines and building fronts.
304 indoors, 316 near the coast
304 with satin polish
Thin walls from 1.0 mm
Satin 304 for easy wipe-down
Heavier walls, matt finish
Hairline finish sections
Mirror polish for retail
316 where salt air is present
Square and rectangular members
SS Square Pipe for Railing: Size and Thickness
Common railing sizes, from a Stainless Steel Square Pipe supplier in Bangalore.
Posts
40 × 40 or 50 × 50 mm
Top Handrail
38 × 38 or 50 × 50 mm
Wall Thickness
1.5 to 3.0 mm
Grade
304 indoors, 316 outdoors
Delivery Estimate for SS Square Pipe Orders
Your Stainless Steel Square Pipe supplier in Mumbai confirms the exact date.
- Packed in 24–48 hours
- Cutting adds time
- Polish-to-order: date confirmed
- 12–18 days to Gulf, East Africa
- Crated, FCL or LCL
- Best for full bundles
- Samples and short pieces
- Lands in 3–5 days
- By volumetric weight
- Varies by port
- Customs time extra
- Written on the offer
ASTM A554 Square Tube Supplier in Bengaluru, EN 10204 3.1 Certified on Every Lot
Match the certificate to the bundle tag and clear inward inspection in minutes.
Where Our SS Square Tube Travels by Road Within India
Road dispatch from Mumbai reaches these fabrication hubs, plus Nagpur and towns across Gujarat.
Pune
Auto and machine-frame builders
Ahmedabad
Kitchen equipment makers
Rajkot
Hardware and furniture units
Bengaluru
Interior and facade contractors
Chennai
Coastal railing work in 316
Delhi
Handrail and balustrade fabricators
Ghaziabad
Gate and grill workshops
Kolkata
Display and furniture fabricators
Where It Ships
Export Destinations for Polished Stainless Steel Square Tube
As a Stainless Steel Square Pipe exporter, we ship from Nhava Sheva.
AEUnited Arab Emirates
TRTurkey
KEKenya
UGUganda
DEGermany
ITItaly
NLNetherlands
USUnited States
MXMexico
VEVenezuela
MYMalaysia
THThailand
IDIndonesia
PHPhilippines
VNVietnam
SS Square Pipe FAQs
What sizes does stainless steel square pipe come in?
- Sides from 10 × 10 mm to 150 × 150 mm
- Walls from 0.8 mm to 6.0 mm
- 1 inch (25 × 25 mm), 1-1/2 inch and 2 inch are common trade sizes
How much does a 20 feet SS 304 square pipe weigh?
- Weight in kg/m = 4 × wall × (side − wall) × 0.00793
- 25 × 25 × 1.2 mm: 0.906 kg/m, about 5.52 kg per 20 ft
- A 10 ft length is half of that, about 2.76 kg
How is SS square pipe price per kg turned into a price for 20 feet?
- Multiply kg/m by 6.096, then by the rate per kg
- For a 10 ft length, use 3.048 m
- Rates follow nickel, so ask for the day’s price
Is SS square pipe magnetic?
- 304 and 316 are non-magnetic when annealed
- Formed corners and the weld seam can pull weakly
- 430 is magnetic; a magnet cannot confirm the grade
What is the HS code for SS square pipe?
- 7306.61: welded tube of square or rectangular section
- India tariff line 7306 61 00
- EU and UK code 7306 61 10 for stainless steel
Is your SS square pipe CE approved and PED approved?
- Yes, with CE and PED 2014/68/EU documents on request
- EN 10204 3.1 certificate with each lot
- ASTM A554 tube is for structural and ornamental use, not pressure lines
Do you supply SS square pipe in Secunderabad and Hyderabad?
- Yes, we are a Stainless Steel Square Pipe supplier in Secunderabad
- Road dispatch from our Mumbai stock
- Cut-to-size pieces packed to your list
