Black Carbon Steel Square Pipe Welded Steel Pipe
carbon tube is used in a variety of high-demand industries,
especially for structural and mechanical support. We offer
high-quality carbon steel tubing in square, round and rectangular
shapes in a wide assortment of widths, wall thicknesses and outside
diameter measurements.
Product Type | SS400 Grade ASTM A36 square Tube |
Specification | OD15*15mm-400*400mm |
OD | 15*15-400*400mm, WT0.8-12.0mm |
Diameter | 0.250″ thru 3″ |
Wall Thickness | 0.8~12.0mm |
Standard | GB, BS, ASTM |
Steel material | Q195. Q215, Q235, Q345 |
Surface Treatment | Bared, Black Painted (varnish coating), Galvanized, With Oiled, 3
PE, FBE, corrosion resistant coating |
Section Shape | Square and rectangular |
Package | Bundle, In Bulk, Bags square galvanised steel hollow section tube,
Clients’ Requirements |
Typical Applications
Structural Steel tube (tubing) can be used for a wide variety of
mechanical applications. It may be used either statically or
dynamically. Its’ close tolerances, good finish, and dense
structure make it ideal for parts such as structural support and
parts, frames, racks, trailer beds and trailer components,
structural components and supports for buildings, bridges, and
highways, conveyors, machine parts, guides, and supports, safety
and deck rails, sign posts, athletic equipment, ornamental usages
and a wide range of applications in industrial, construction,
automotive, appliance, furniture and agricultural industries.
There several effective tests are conducted in order to bring out
the very good quality of the product. The testing is positive
material identification test, intergranular corrosion test, pitting
resistance test, hardness test, chemical analysis, mechanical test,
radiography test, hydrostatic test. More test like eddy current
test, flattening test, flaring test, ultrasonic test, macro test,
micro test is performed.
SS400 steel can have ultimate tensile strengths from 58,000 to
79,800 psi. The exact ultimate tensile strength is determined by a
variety of factors such as chemical composition and forming method.
A36 is relatively ductile and can elongate to around 20% of its
original length when tensile testing. Its ductility and strength
also give it excellent impact strength at room temperature.
Mechanical Properties | Imperial | Metric | Ultimate Tensile Strength | 58,000 – 79,800 psi | 400 – 550 MPa | Yield Tensile Strength | 36,300 psi | 250 MPa | Elongation at Break (in 200 mm) | 20.0% | 20.0% | Elongation at Break (in 50 mm) | 23.0% | 23.0% | Modulus of Elasticity | 29,000 ksi | 200 GPa | Bulk Modulus (Typical for steel) | 20,300 ksi | 140 GPa | Poissons Ratio | 0.260 | 0.260 | Shear Modulus | 11,500 ksi | 79.3 GPa |
|
Other Grade
USA | Japan | Germany | U.K. | | France | Italy | Spain | Sweden | China |
AISI/SAE | JIS | W‐nr. | DIN | BS | EN | AFNOR | UNI | UNE | SS | |
A570.36 | STKM 12A | 1.0038 | RSt.37‐2 | 4360 | ‐ | E 24‐2 | ‐ | ‐ | 1311 | 15 |
| STKM 12C | | | 40 C | | Ne | | | | |
1015 | ‐ | 1.0401 | C15 | 080M15 | ‐ | CC12 | C15, C16 | F.111 | 1350 | 15 |
1020 | ‐ | 1.0402 | C22 | 050A20 | 2C | CC20 | C20, C21 | F.112 | 1450 | 20 |
1213 | SUM22 | 1.0715 | 9SMn28 | 230M07 | 1A | S250 | CF9SMn28 | F.2111 | 1912 | Y15 |
11SMn28 |
| | | | | | | | | |
12L13 | SUM22L | 1.0718 | 9SMnPb28 | ‐ | ‐ | S250Pb | CF9SMnPb28 | 11SMnPb28 | 1914 | ‐ |
‐ | ‐ | 1.0722 | 10SPb20 | ‐ | ‐ | 10PbF2 | CF10Pb20 | 10SPb20 | ‐ | ‐ |
1215 | ‐ | 1.0736 | 9SMn36 | 240M07 | 1B | S300 | CF9SMn36 | 12SMn35 | ‐ | Y13 |
12L14 | ‐ | 1.0737 | 9SMnPb36 | ‐ | ‐ | S300PB | CF9SMnPb36 | 12SMnP35 | 1926 | ‐ |
1015 | S15C | 1.1141 | Ck15 | 080M15 | 32C | XC12 | C16 | C15K | 1370 | 15 |
1025 | S25C | 1.1158 | Ck25 | ‐ | ‐ | ‐ | ‐ | ‐ | ‐ | 25 |
A572‐60 | ‐ | 1.890 | StE380 | 4360 55 | ‐ | ‐ | FeE390KG | ‐ | 2145 | ‐ |
| | | | E | | | | | | |
1035 | ‐ | 1.0501 | C35 | 060A35 | ‐ | CC35 | C35 | F.113 | 1550 | 35 |
1045 | ‐ | 1.0503 | C45 | 080M46 | ‐ | CC45 | C45 | F.114 | 1650 | 45 |
1140 | ‐ | 1.0726 | 35S20 | 212M36 | 8M | 35MF4 | ‐ | F210G | 1957 | ‐ |
1039 | ‐ | 1.1157 | 40Mn4 | 150M36 | 15 | 35M5 | ‐ | ‐ | ‐ | 40Mn |
1335 | SMn438(H) | 1.1167 | 36Mn5 | ‐ | ‐ | 40M5 | ‐ | 36Mn5 | 2120 | 35Mn2 |
1330 | SCMn1 | 1.1170 | 28Mn6 | 150M28 | 14A | 20M5 | C28Mn | ‐ | ‐ | 30Mn |
1035 | S35C | 1.1183 | Cf35 | 060A35 | ‐ | XC38TS | C36 | ‐ | 1572 | 35Mn |
1045 | S45C | 1.1191 | Ck45 | 080M46 | ‐ | XC42 | C45 | C45K | 1672 | Ck45 |
1050 | S50C | 1.1213 | Cf53 | 060A52 | ‐ | XC48TS | C53 | ‐ | 1674 | 50 |
1055 | ‐ | 1.0535 | C55 | 070M55 | 9 | ‐ | C55 | ‐ | 1655 | 55 |
1060 | ‐ | 1.0601 | C60 | 080A62 | 43D | CC55 | C60 | ‐ | ‐ | 60 |
1055 | S55C | 1.1203 | Ck55 | 070M55 | ‐ | XC55 | C50 | C55K | ‐ | 55 |
1060 | S58C | 1.1221 | Ck60 | 080A62 | 43D | XC60 | C60 | ‐ | 1678 | 60Mn |
1095 | ‐ | 1.1274 | Ck101 | 060A96 | ‐ | XC100 | ‐ | F.5117 | 1870 | ‐ |
W1 | SK3 | 1.1545 | C105W1 | BW1A | ‐ | Y105 | C36KU | F.5118 | 1880 | ‐ |
W210 | SUP4 | 1.1545 | C105W1 | BW2 | ‐ | Y120 | C120KU | F.515 | 2900 | ‐ |
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