4" 6" 10" Welded Black Square Steel Pipe / Structural Tube ASTM A53, BS1387

Size

10x10mm-600x600mm

Wall thickness (W.T.)

0.5mm-20mm

Length

1m-12m ,by customer’s requirements

Standards

ASTM A53,BS1387,GB/T3091-93-2008

Materials

Q195-Q235,Q235,16Mn,STK500,STK400,ST37-2,SS400

Product Category

Metallurgy, Mineral & Energy

Technique

square steel pipe

Packing

1.Big OD: in bulk vessel                                                     

2.Small OD: packed by steel strips

3.according to the requirements of customers

Usage

Mechanical & manufacture, Steel structure,Shipbuilding, Bridging ,Automobile chassis

Main market

Middle East, Africa, Asia and some European country and America ,Australia

Country of origin

Tianjin,China

Productivity

30,000 Metric Tons per Month

Remark

1 Payment terms :T/T ,L/C,D/P

2 Terms of trade :FOB ,CIF,CFR

3 Minimum order : 1tons

4 Lead time:10-30days after we received advanced payment

product

Size(mm)

Wall thickness
(mm)

Length
(mm)

Grade

UNS

Composition (% by weight in heat)

Minimum strength requirements

 
 
 
15*15-600*600mm

 
 
 
0.5-20mm

 
 
 
1-12mm or according to customers’ requirements

C

Mn

P

S

Cu

tensile

yield (shaped)

elongation

max %

max %

max %

max %

min %

MPa (ksi)

MPa (ksi)

 %

A

K03000

0.26

1.35

0.035

0.035

0.20

310 (45)

270 (39)

25

B

K03000

0.26

1.35

0.035

0.035

0.20

400 (58)

315 (46)

23

C

K02705

0.23

1.35

0.035

0.035

0.20

425 (62)

345 (50)

21

D

K03000

0.26

1.35

0.035

0.035

0.20

400 (58)

250 (36)

23