Product name
Stainless steel square tube
Grade
201, 202, 301, 303,304L, 304 316, 316L, 321, 2520, 1Cr13, 2Cr13, 3Cr13 etc
Standard
AISI,ASTM,DIN,JIS,BS,NB
Certification
SGS,BV,IQI,TUV,ISO etc.
Outer diameter
9mm-1016mm
Length
6m or as your request
Thickness
0.5mm-50mm
Shape
Square tubes, round tubes, oval pipes, special shaped pipes
Surface
BA/2B/NO.1/NO.4/4K/HL/8K
Payment term
30% T/T in advance and balance to be paid before delivery
Package
clients' requirement and Standard export sea-worthy packing
Delivery time
7-30 days
Application
Petroleum, electronics, chemical industry, medicine, textile, food, machinery, construction, nuclear power, aerospace, military and other industries.
Quality Assurance
ISO9001 quality management system certification, production license.


Grade and Main chemical compstion
                     C                 Si               Mn                 P≤                S≤                   Cr                    Mo                    Ni                   Other
201
≤0.15
≤1.00
5.5-7.5
0.06
0.03
16-18
-
3.5-5.5
N≤0.25
202
≤0.15
≤1.00
7.5-10.0
0.06
0.03
17-19
-
4.0-6.0
N≤0.25
301
≤0.15
≤1.00
≤2.00
0.045
0.03
16-18
-
6.0-8.0
-
302
≤0.15
≤1.00
≤2.00
0.045
0.03
17-19
-
8-10.0
-
303
≤0.15
≤1.00
≤2.00
0.2
≥0.015
17-19
≤0.6
8-10.0
-
304
≤0.08
≤1.00
≤2.00
0.045
0.03
18-20
-
8-10.5
-
304L
≤0.03
≤1.00
≤2.00
0.045
0.03
18-20
-
9-13
-
305
≤0.12
≤1.00
≤2.00
0.045
0.03
17-19
-
10.5-13
-
309S
≤0.08
≤1.00
≤2.00
0.045
0.03
22-24
-
12-15
-
310S
≤0.08
≤1.50
≤2.00
0.045
0.03
24-26
-
19-22
-
316
≤0.08
≤1.00
≤2.00
0.045
0.03
16-18
2-3
10-14
-
316L
≤0.03
≤1.00
≤2.00
0.045
0.03
16-18
2-3
12-15
-
317
≤0.08
≤1.00
≤2.00
0.045
0.03
18-20
3-4
11-15
-
317L
≤0.03
≤1.00
≤2.00
0.045
0.03
18-20
3-4
11-15
-
321
≤0.08
≤1.00
≤2.00
0.045
0.03
17-19
-
9-13
-
405
≤0.08
≤1.00
≤1
0.04
0.03
11.5-14.5
-
≤0.6
AL0.1-0.3
420F
0.26-0.4
≤1.00
≤1.25
0.06
≥0.015
12-14
≤0.6
≤0.6
-
430
≤0.12
≤0.75
≤1.00
0.04
0.03
16-18
-
≤0.6
-


Stainless steel square tube

Stainless steel as a material effectively decreases life cycle costs and offers excellent corrosion resistance as well as freedom from maintenance needs. The durable and sustainable, 100 % recyclable material is a perfect match for various industries needing light-weight, high-strength solutions.


Made of Austenitic, Duplex and Lean Duplex steel grades, stainless steel square tube are built for challenging conditions. For the building and construction industry, their fire resistance properties make them an attractive choice for structures – without a need for coating. In highly corrosive environments, Duplex and Lean Duplex beams and profiles provide superior general corrosion resistance, pitting resistance and intergranular corrosion resistance.


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