Stainless Steel A554 Gr 321/321H Square Hollow Sections

Stainless Steel Square Hollow Section

Best Price of ASME SA554 Stainless Steel 321 Square Pipe, Stainless Steel A554 Gr 321H SHS Tubes, ASTM A554 Gr.321 Stainless Steel Seamless Square Hollow Sections Supplier in India.


A versatile and often used substance, stainless steel is renowned for its great strength, resistance to corrosion, and aesthetic appeal. A554 Gr 321/321H stands out among its other grades as a dependable option for square hollow sections due to its distinct characteristics and great performance. Austenitic stainless steel grade A554 Gr 321/321H has titanium as a stabilising ingredient. It is ideal for high-temperature applications thanks to this addition's strong resistance to intergranular corrosion. Additionally, the alloy's composition provides outstanding strength and toughness, guaranteeing enduring performance in a variety of difficult settings.

The excellent resistance of A554 Gr 321/321H square hollow sections to oxidation and scaling at high temperatures is one of their main benefits. Because of this quality, they are perfect for use in fields where exposure to high temperatures is widespread, including aerospace, chemical processing, and thermal power production. The safety and dependability of the structures they support are guaranteed by the capacity of these square hollow sections to tolerate intense heat without losing structural integrity or suffering appreciable degradation.The corrosion resistance of A554 Gr 321/321H is another outstanding quality. Acids, alkalis, and salt solutions are just a few of the many corrosive conditions that the alloy exhibits good resistance to.

A554 Gr 321/321H square hollow sections have a sleek, contemporary appearance that goes well with a variety of architectural and design styles. These parts are a common choice in fields like construction, interior design, and furniture production because of their aesthetic appeal and smooth surface finish, which improves the visual appeal of buildings. In conclusion, square hollow sections made of A554 Gr 321/321H provide an excellent balance of strength, longevity, corrosion resistance, and aesthetic appeal. Due to these characteristics, they are a great choice for a variety of applications, especially in high-temperature, corrosive, and architectural situations. A554 Gr 321/321H stands out as a dependable and adaptable alternative for choosing square hollow sections that guarantees top performance and lifespan.


SS SUS 321 Square Box Sections, Grade 321H A554 SS Square Tube Manufacturer in Mumbai, India.


Stainless Steel A554 Gr 321 Square Hollow Sections Specification

Specifications ASTM A554 / ASME SA554(Ornamental Tubing Specification) or ASTM A 312
Sizes 20x20mm to 400x400mm, other non standard sizes available on request
Wall Thickness 0.5mm to 6mm
Length Up to 6 meters, custom cut lengths
Type Seamless/ Welded / ERW
Packing In bundles, Anticorrosion heat preservation, Varnish coating, Ends can be bevelled or square cut, End Capped Certification & supplementary test, Finishing & Identity Mark Surface Protection : Black (Self Coloured uncoated), Varnish/Oil Coating, Pre-Galvanized, Hot Dip Galvanized
Finish 2B, No.1 Pickled Finish, No.4 finish, BA Finish, No.8 Mirror Finish, Electropolished Square Pipes
Delivery Condition Bright Annealed, Polished or Annealed and Pickled

Buy DIN 1.4541 SS Square Hollow Section Pipes, Stainless Steel UNS S32109 SHS Pipe, A554 SS 321 Structural Square Hollow Sections


Stainless Steel A554 Gr 321/321H Square Hollow Sections Sizes:

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

Stainless Steel A554 Gr 321/321H Square Hollow Sections Grades

Ready Stock of Stainless Steel A554 Gr 321/321H Square Hollow Sections

AISI Stainless Steel 321H welded structural hollow sections SS A554 Gr 321 Square Pipe
Square stainless steel box section Stainless Steel A554 321 Square Hollow Section Pipe
ASME SA554 321H SS Hollow Square Tube A554 Gr 321 Stainless Steel SHS Section
321H Stainless Steel ASME SA554 Square ERW Hollow Section SS 321 A554 Seamless Square Hollow Section
A554 Gr 321H SS Seamless Pipe Type 321 ASTM A554 Stainless Steel Square Section
A554 321 SS Seamless Square Hollow Section Tube Stainless Steel DIN 1.4878 Welded Square Tube
SS A554 Gr 321H SHS Tubing ASTM A554 Stainless Steel Gr 321 Seamless SHS Pipe
A554 Grade 321 SS Square Tube Welded SUS 321H SS SHS Pipe
Stainless Steel A554 Gr 321H Square Box Sections ASTM A554 SS 321 Square Hollow Box
Grade 321H A554 square steel box section SS 321 Square Hollow Section
Stainless Steel Square Pipes ASTM A554 SS Square Tubes
stainless steel A554 Gr 321H Hollow Section Square SA554 SS 321 Hollow Section Square Tube
Stainless Steel A554 Gr 321H ERW Square Hollow Section Square SS A554 Grade 321 structural steel tube
ASTM A554 321H SS Square Hollow Section UNS S32100 Seamless SHS Tube
ASME SA554 Square Stainless Steel 321H Structural Hollow Section SS A554 Gr 321 Seamless Square Sections

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

STANDARD WERKSTOFF NR. UNS JIS EN
SS 321 1.4541 S32100 SUS 321 X6CrNiTi18-10
SS 321H 1.4878 S32109 SUS 321H X12CrNiTi18-9

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

Grade C Mn Si P S Cr N Ni Ti
SS 321 0.08 max 2.0 max 1.0 max 0.045 max 0.030 max 17.00 - 19.00 0.10 max 9.00 - 12.00 5(C+N) – 0.70 max
SS 321H 0.04 – 0.10 2.0 max 1.0 max 0.045 max 0.030 max 17.00 - 19.00 0.10 max 9.00 – 12.00 4(C+N) – 0.70 max

Stainless Steel A554 Gr 321/321H Square Hollow Section Mechanical Composition

Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
8.0 g/cm3 1457 °C (2650 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 35 %

Stainless Steel A554 Gr 321/321H Square Hollow Sections Updated Price List

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Ranfit Metals & Alloys is a ISO approved certified AISI 321 Stainless Steel Square Hollow Section Tube exporter in India. We are known as a trusted vendor as a A554 SS 321H Structural Square Hollow Sections, Gr 321 SS ASTM A554 SHS Tubing distributor & dealer in your country. Our 321H Stainless Steel Welded Square Tubes are tested to international standards, and specifications as per DIN, JIS, EN, ASTM etc. We have huge stock in Asia, GCC, Gulf, Middle east, UK to supply with over 28 countries, we provide after sales service and fast delivery.