Call us: +91-9987673092

sales@ranfitmetal.com

Stainless Steel Gr. 321/321H A554 Square Hollow Section

A554 Rectangular Hollow Section

ASTM A554 STAINLESS STEEL GR. 321/321H SQUARE HOLLOW SECTION MANUFACTURER & SUPPLIER IN MUMBAI, INDIA.


SS A554 Gr 321/321H SHS Square Hollow Sections, Stainless Steel 321/321H ASTM A554 SHS Tube, A554 SS 321/321H Seamless Square Tube, 321/321H Stainless Steel A554 Welded Square Pipe, SA554 321/321H SS Welded Square Tubing, ASTM A554 Stainless Steel Grade 321/321H Seamless Square Pipes, ASTM A554 321/321H Stainless Steel Square Section, SS ASTM A554 321/321H ERW SHS Tubing, ASTM A554 321/321H Stainless Steel Welded Square Hollow Section, ASTM A554 321/321H SS Square Hollow Section Welded Tube Supplier & Stockist in Mumbai, India.


Ranfit Metal is a well-known manufacturer, supplier, and stockiest of ASTM A554 Stainless Steel Gr. 321/321H Square Hollow Section. SS 321/321H SHS are stabilized with titanium to prevent carbide precipitation and maintain strength at elevated temperatures.

ASTM A554 Stainless Steel 321/321H Square Hollow Section possess a high yield strength, ultimate tensile strength, and modulus of elasticity, making them suitable for load-bearing applications and structures that require high stiffness and stability. ASTM A554 321/321H SS Square Hollow Section Welded Tubing is known for its good strength and resistance to oxidation at higher temperatures (up to around 870°C or 1600°F), also it is excellent resistance to corrosion in acidic and high-temperature environments. The presence of chromium, nickel, and titanium in the comporition ASME SA554 Stainless Steel 321/321H Seamless SHS Tubing creates a protective oxide layer on the surface, which shields the material from corrosive substances and environments. This feature makes them suitable for use in industries where exposure to chemicals, saltwater, or acidic substances is a concern. The square hollow section shape of these SS UNS S32100/S32109 Structural Square Hollow Section offers several benefits, including increased strength-to-weight ratio, improved structural integrity, and enhanced aesthetic appeal. The hollow interior also provides a significant reduction in material weight, making them an attractive option for projects where weight reduction is a critical factor.

ASME SA554 SS 321/321H Square Hollow Pipes & Tubes Commonly used in industries such as Construction, Architecture, Chemical, Petrochemical, Marine and Offshore, Food and Beverage, Aerospace and Defense etc.


Stainless Steel A554 Gr 321/321H SHS Tubes, DIN 1.4306 / 1.4307 SS Square Hollow Section Pipes, AISI 321/321H Stainless Steel Square Hollow Section Tube Distributors , ASTM A554 Gr.321/321H Stainless Steel Seamless Square Hollow Sections, A554 SS 321/321H Structural Square Hollow Sections, SS SUS 321/321H Square Box Sections Exporters in Mumbai, ASME SA554 Steel 321/321H ERW SHS Pipes, 321/321H Stainless Steel Welded Square Tubes Dealers Exporters in Mumbai, India.


Key Standards

ASTM A554: specification that covers welded stainless steel mechanical tubing for use in ornamental, structural, exhaust, and other applications.

Gr. 321/321H: 321/321H (Low carbon variant of Stainless Steel Grade 304)


Stainless Steel Gr. 321/321H Square Hollow Section Specifications

Standard ASTM A554/ ASME SA554 (Ornamental Tubing Specification) or ASTM A312
Grade Stainless Steel 321/321H
ASME/ANSI Specification ANSI/ASME B36.10M, ANSI/ASME B36.19M
SHS (Square Hollow Sections) Sizes 20x20mm to 400x400mm, other non standard sizes available on request
Manufacturing Type ERW, Welded, CDW, Seamless, 100% X Ray Welded, Fabricated
Outside Diameter 21.3—457.2mm
Wall Thickness 0.5mm to 6mm
Scheduled SCH 40, SCH 5, SCH10, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Length Up to 6 meters, Custom Cut Lengths
Finish 2B, No.1 Pickled Finish, No.4 finish, BA Finish, No.8 Mirror Finish, Electropolished Rectangular Pipes
Packing In bundles, coating, Ends can be bevelled or square cut, End Capped Certification & supplementary test, Finishing & Identity Mark

ASME SA554 321/321H Stainless Steel Square Hollow Section Equivalent Grades

STANDARD WERKSTOFF NR. UNS JIS BS GOST AFNOR EN
SS 321/321H 1.4306 / 1.4307 S30403 SUS 321/321H 3304S11 03Х18Н11 Z3CN18‐10 X2CrNi18-9 / X2CrNi19-11

ASTM A554 Stainless Steel 321/321H Square Hollow Section Chemical Composition

Grade C Mn Si P S Cr Mo Ni N
SS 321/321H 0.035 max 2.0 max 1.0 max 0.045 max 0.03 max 18 – 20 - 8 – 13 -

ASME SA554 SS 321/321H Structural Square Hollow Section Mechanical Properties

Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
8.0 g/cm3 1400 °C (2550 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 35 %

Types of EN 10219 S235JRH Hollow Section Square

ASTM A554 Stainless Steel 321/321H Welded Square Hollow Section

ASTM A554 Stainless Steel 321/321H Seamless Square Hollow Pipes

ASTM A554 Stainless Steel 321/321H Structural Square Hollow Tubing

ASTM A554 SS 321/321H Electropolished Square Hollow Sections

ASTM A554 SS 321/321H Square Hollow Box

ASTM A554 SS 321/321H ERW Square Hollow Pipes & Tubes

ASTM A554 Stainless Steel 321/321H Square Hollow Section Size Chart

Size mm kg/m Size mm kg/m
20 x 20 x 2.0 1.12 20 x 20 x 2.5 1.35
25 x 25 x 1.5 1.06 25 x 25 x 2.0 1.43
25 X 25 X 2.5 1.74 25 X 25 X 3.0 2.04
30 X 30 X 2.0 1.68 30 X 30 X 2.5 2.14
30 X 30 X 3.0 2.51 40 x 40 x 1.5 1.81
40 x 40 x 2.0 2.31 40 x 40 x 2.5 2.92
40 x 40 x 3.0 3.45 40 x 40 x 4.0 4.46
40 x 40 x 5.0 5.40 50 x 50 x 1.5 2.28
50 x 50 x 2.0 2.93 50 x 50 x 2.5 3.71
50 x 50 x 3.0 4.39 50 x 50 x 4.0 5.72
50 x 50 x 5.0 6.97 60 x 60 x 3.0 5.34
60 x 60 x 4.0 6.97 60 x 60 x 5.0 8.54
60 x 60 x 6.0 9.45 70 x 70 x 3.0 6.28
70 x 70 x 3.6 7.46 70 x 70 x 5.0 10.11
70 x 70 x 6.3 12.50 70 x 70 x 8 15.30
75 x 75 x 3.0 7.07 80 x 80 x 3.0 7.22
80 x 80 x 3.6 8.59 80 x 80 x 5.0 11.70
80 x 80 x 6.0 13.90 90 x 90 x 3.0 8.01
90 x 90 x 3.6 9.72 90 x 90 x 5.0 13.30
90 x 90 x 6.0 15.76 90 x 90 x 8.0 20.40
100 x 100 x 3.0 8.96 100 x 100 x 4.0 12.00
100 x 100 x 5.0 14.80 100 x 100 x 5.0 14.80
100 x 100 x 6.0 16.19 100 x 100 x 8.0 22.90
100 x 100 x 10 27.90 120 x 120 x 5 18.00
120 x 120 x 6.0 21.30 120 X 120 X 6.3 22.30
120 x 120 x 8.0 27.90 120 x 120 x 10 34.20
120 X 120 X 12 35.8 120 X 120 X 12.5 41.60
140 X 140 X 5.0 21.10 140 X 140 X 6.3 26.30
140 X 140 X 8 32.90 140 X 140 X 10 40.40
140 X 140 X 12.5 49.50 150 X 150 X 5.0 22.70
150 X 150 X 6.3 28.30 150 X 150 X 8.0 35.40
150 X 150 X 10 43.60 150 X 150 X 12.5 53.40
150 X 150 X 16 66.40 150 X 150 X 16 66.40
180 X 180 X 5 27.40 180 X 180 X 6.3 34.20
180 X 180 X 8 43.00 180 X 180 X 10 53.00
180 X 180 X 12.5 65.20 180 X 180 X 16 81.40
200 X 200 X 5 30.50 200 X 200 X 6 35.8
200 x 200 x 6.3 38.2 200 x 200 x 8 48.00
200 x 200 x 10 59.30 200 x 200 x 12.5 73.00
200 x 200 x 16 91.50 250 x 250 x 6.3 48.10
250 x 250 x 8 60.50 250 x 250 x 10 75.00
250 x 250 x 12.5 92.60 250 x 250 x 16 117.00
300 x 300 x 6.3 57.90 300 x 300 x 8 73.10
300 x 300 x 10 57.90 300 x 300 x 8 90.70
300 x 300 x 12.5 112.00 300 x 300 x 16 142.00
350 x 350 x 8 85.70 350 x 350 x 10 106.00
350 x 350 x 12.5 132.00 350 x 350 x 16 167.00
400 x 400 x 10 122.00 400 x 400 x 12 141.00
400 x 400 x 12.5mm 152.00 400 x 400 x 16 192

ASTM A554 Stainless Steel 321/321H SHS Weight Chart

Nominal SS SHS Schedule 10 SS SHS Schedule 5 SS SHS Schedule 40
Inch MM Wt./MM Kg./M Kg./Ft Wt./MM Kg./M Kg./Ft Wt./MM Kg./M Kg./Ft
1 1 / 4 33.40 2.77 2.690 0.820 1.65 1.650 0.503 3.56 3.380 1.030
3 / 4 21.30 2.11 1.280 0.390 1.65 1.020 0.311 2.87 1.680 0.512
2 48.30 2.77 3.920 1.200 1.65 3.340 0.728
1 / 2 21 2.11 0.999 0.305 1.65 0.801 0.244 2.77 1.270 0.387
1 26.70 2.77 2.090 0.637 1.65 1.290 0.393 3.38 2.500 0.762
1 1 / 2 42.20 2.77 3.110 0.948 1.65 1.900 0.579 3.68 4.050 1.230
2 1 / 2 73.00 3.05 5.260 1.600 2.11 3.690 1.130
3 88.90 3.05 6.450 1.970 2.11 4.510 1.380
3 1 / 2 101.60 3.05 7.400 2.260 2.11 5.190 1.580

SS 321/321H A554 Square Hollow Section Tolerance Chart

NPS Designator Permissible Variations in Outside Diameter
Over In. Under In.
1/8 to 1-1/2, incl 1/64 (0.015) 1/32 (0.031)
Over 1-1/2 to 4, incl 1/32 (0.031) 1/32 (0.031)
Over 4 to 8, incl 1/16 (0.062) 1/32 (0.031)
Over 8 to 18, incl 3/23 (0.093) 1/32 (0.031)

ASTM A554 SS 321/321H Welded Square Section Tubing Thickness

Nominal Pipe Size Outside Diameter in. Schedule 160 in. Schedule 40S in. Schedule 80S in. Schedule 10S in. Schedule XX in.
1/4 0.540 0.088 0.119 0.065
3/8 0.675 0.091 0.126 0.065
1/2 0.840 .188 0.109 0.147 0.083 .294
3/4 1.050 .218 0.113 0.154 0.083 .308
1.0 1.315 .250 0.133 0.179 0.109 .358
1 1/4 1.660 .250 0.140 0.191 0.109 .382
1 1/2 1.900 .281 0.145 0.200 0.109 .400
2 2.375 .343 0.154 0.218 0.109 .436
2 1/2 2.875 .375 0.203 0.276 0.120 .552
3 3.500 .438 0.216 0.300 0.120 .600
3 1/2 4.000 0.226 0.318 0.120 .636
4 4.500 .534 0.237 0.337 0.120 .674
5 5.563 .625 0.258 0.375 0.134 .750
6 6.625 .719 0.280 0.432 0.134 .864
8 8.625 .906 0.322 0.500 0.148 .875
10 10.750 1.125 0.365 0.500 0.165
12 12.750 1.312 0.375 0.500 0.180
14 14.000 1.406 0.375 0.500 0.188
16 16.000 1.594 0.375 0.500 0.188

Grade 321/321H Stainles Steel Square Section Pressure Chart

Pressure Rating (psig)
Pipe Size
(inches) 		Pipe Schedule Temperature (oF)
100 200 300 400 500 600 650 700 750

Cold Formed EN 10219 S275J0H SHS

Buy High Quality ASTM A554 Stainless Steel 321/321H Square Hollow Section

equest the latest ASTM A554 Stainless Steel 321/321H SHS Price List.
Please call us : +91 9987673092
mail us : sales@ranfitmetal.com
to request the updated price list and ready stock information along with your requirement.

ASTM A554 Stainless Steel 321/321H SHS Available Types

Stainless Steel 321/321H Large Diameter Square Hollow Section ASME SA554 SS 321/321H Square Hollow Section Pipes Manufacturer in India
ASTM A554 321/321H SS Square Hollow Pipe ASTM A554 Stainless Steel 321/321H Square Hollow Pipe Gauges
SS INOX 1.4307 Heavy Wall Square Hollow Piping SUS 321/321H Hollow Section Square Pipes
SS 321/321H Seamless Square Hollow Section Supplier in India High Quality ASTM A554 SS 321/321H Welded Square Hollow Section
SS 321/321H Square Hollow Box Section Exporter in India 321/321H SS Schedule 40/40S Square Hollow Pipe Supplier in India
Schedule 80 Stainless Steel 321/321H Square Hollow Tubing Thick Wall SS 321/321H Square Hollow Section Stockists in India
SS UNS S30403 Square Hollow Section Pipe ASTM A554 Tp321/321H Stainless Steel Welded Tubes
321/321H Stainless Steel A554 Square Hollow Section Stainless Steel A554 321/321H Square Hollow Structural Sections Supplier
ASME SA554 Grade 321/321H Seamless Square Tube Ferritic Stainless Steel 321/321H Square Hollow Pipes
2 Inch ASME SA554 Stainless Steel 321/321H Square Tubing Stainless Steel WERKSTOFF NR 1.4306 SHS Pipes Stokist in India
Stainless Steel 321/321H Welded SHS Pipes SS 321/321H Seamless Square Hollow Section Pipes Stockholder
UNS S30403 Welded SHS Pipes Exporter 1.4306 Seamless Square Hollow Section Pipes Manufacturer
SS 321/321H Seamless Square Hollow Structural Sections High Quality SS 321/321H Square Hollow Section Pipe
SS 321/321H Cold Drawn SHS Pipe exporter in India 321/321H SS Welded SHS Pipe Supplier in India
Stainless Steel 321/321H Square Hollow Section Pipes Thick Walled SS 321/321H SHS Pipe Stockists in India
SS 321/321H Square Hollow Section Welded Pipe Price List ASTM A554 SS 321/321H Polished Square Hollow Section Pipe
Stainless Steel 321/321H SHS Pipe Manufacturer SS 321/321H (SHS) Square Hollow Section Pipes
321/321H Stainless Steel Welded SHS Pipe Stainless Steel 321/321H SHS Pipe Gauges
SS 1.4306/1.4307 Heavy wall SHS Piping SUS 321/321H SHS (Square Hollow Section) Pipes
SS 321/321H Bright Annealed SHS Pipes Vendors SS 321/321H Beveled End SHS Pipes Stockist
A554 SS 321/321H 1/2 Stainless Steel Square Tubing ASTM A554 SS 321/321H SHS Pipe Exporter
Matt Finish A554 SS Gr. 321/321H Square Hollow Tubing Allied Polished A554 SS 321/321H Square Hollow Section
Jindal Square SS Hollow Sections 321/321H Hot Rolled Stainless Steel Gr 321/321H Square Hollow Section
6" NB in Thickness A554 SS 321/321H SHS Pipes Stockist 4" NB in Thickness A554 SS 321/321H Structural SHS Stockist

ASTM A554 Stainless Steel 321/321H SHS Manufacturing Process

Square Hollow Section

ASTM A554 Stainless Steel 321/321H Square Hollow Sections – Application Industrty

  • Petrochemical Industry
  • Aerospace Industry
  • Refineries
  • Construcion
  • Chemical Industry
  • Railway Industry
  • Oil & Gas Industry
  • Ship Building

Suppliers and Exporters of EN 10219 S235JRH Square Hollow Sections in Countries like

Secunderabad, Hong Kong, Ankara, Al Jubail, Kolkata, Jaipur, London, Visakhapatnam, Courbevoie, Chennai, Nagpur, Bengaluru, Karachi, Geoje-si, Kanpur, Hanoi, Abu Dhabi, Tehran, Jeddah, Sydney, Seoul, Ludhiana, Lahore, Milan, Singapore, Al Khobar, Cairo, Santiago, Noida, Howrah, Toronto, Aberdeen, Riyadh, Bangkok, Ho Chi Minh City, La Victoria, Dammam, Bogota, Navi Mumbai, Pimpri-Chinchwad, Coimbatore, Mexico City, Vung Tau, Calgary, Thane, Indore, Manama, Atyrau, Pune, Mumbai, Busan, Ranchi, Melbourne, Ahvaz, Lagos, Jakarta, New York, Moscow, Vadodara, Jamshedpur, Colombo, Montreal, Nashik, Dallas, Thiruvananthapuram, Ahmedabad, Algiers, Caracas, Haryana, Dubai, Sharjah, Surat, Gimhae-si, Perth, Ulsan, Istanbul, Rajkot, Baroda, Chiyoda, Doha, Los Angeles, Houston, Faridabad, Port-of-Spain, Brisbane, Rio de Janeiro, New Delhi, Ernakulam, Edmonton, Kuala Lumpur, Chandigarh, Madrid, Gurgaon, Petaling Jaya, Granada, Hyderabad, Kuwait City, Bhopal, Muscat.

Suppliers and Exporters of EN 10219 S235JRH Square Hollow Sections in cities like

Indore, Houston, Istanbul, Perth, Brisbane, Algiers, Karachi, Secunderabad, Vadodara, Melbourne, Vung Tau, Visakhapatnam, Dubai, Bogota, Rio de Janeiro, Hyderabad, Thane, Calgary, Granada, Caracas, Baroda, Busan, Jaipur, Gurgaon, Aberdeen, Jakarta, Kuwait City, New Delhi, Ho Chi Minh City, Ludhiana, Bengaluru, Ankara, Tehran, London, Dammam, Milan, Surat, Courbevoie, Coimbatore, Petaling Jaya, Pimpri-Chinchwad, Santiago, Dallas, Lahore, Rajkot, Jamshedpur, Atyrau, Gimhae-si, Pune, Abu Dhabi, Moscow, Riyadh, Thiruvananthapuram, Sharjah, Haryana, Hanoi, Bhopal, Ahvaz, Ranchi, Sydney, Faridabad, Seoul, Port-of-Spain, Al Jubail, Madrid, Nagpur, Nashik, Montreal, Colombo, Al Khobar, Geoje-si, Toronto, Edmonton, Lagos, Chiyoda, Chennai, Howrah, Hong Kong, Chandigarh, Kuala Lumpur, Manama, New York, Ulsan, Mumbai, Los Angeles, Muscat, Doha, Singapore, Ahmedabad, Kolkata, Cairo, Jeddah, Bangkok, Navi Mumbai, Noida, La Victoria, Ernakulam, Kanpur, Mexico City.