1.ASTM A53 black Square pipe introduction
ASTM A53 black Square pipe is a light steel tube with a hollow square cross-section, also known as a steel refrigerated bent section. It is a section steel with a square cross-section shape made by hot-rolled or cold-rolled strip or coil as the base material, formed by cold bending and then high-frequency welding. The ASTM A53 square pipe has good mechanical properties, good cold and hot processing performance, corrosion resistance and low temperature toughness.
2.ASTM A53 black Square pipe classification
| Classification method | Category Name |
| Classified by process | ASTM A53 Hot rolled seamless square tube, cold drawn seamless square tube, extruded seamless square tube, welded square tube |
| Classified by material | Plain carbon steel square pipe, low alloy square pipe |
| Classified by section shape | ASTM A53 black Square square tube, rectangular square tube, special-shaped square tube |
| Classified by surface treatment | ASTM A53 Hot-dip galvanized square pipe, oil-coated square pipe, pickled square pipe |
| Classified by purpose | ASTM A53 Structural square tube, decorative square tube, construction square tube, mechanical square tube |
| Classification by wall thickness | Super thick-walled square tube, thick-walled square tube and thin-walled square tube |
3.ASTM A53 Square pipe application
Uses of ASTM A53 square pipes: construction, machinery manufacturing, shipbuilding, solar power support, steel structure engineering, power engineering, glass curtain walls, automobile chassis, airports, boiler construction, highway railings, bridges, power station equipment, lifting and transportation machinery and other relatively High-load welded structural parts, etc.
4.Cooperation customer
1. The company adheres to the customer-centric business philosophy, and has won the trust of customers with high-quality ASTM A53 black square pipes, thoughtful service, and punctual delivery.
2. The company's ASTM A53 black square pipes are exported to Europe, America, Middle East, Africa, Southeast Asia and other countries and regions, and are well received by customers.
ASTM A53 black square pipes Specifications （MM）
16*16 20*20 25*25 30*30 32*32 35*35 38*38
40*40 45*45 50*50 60*60 70*70 75*75 80*80
85*85 90*90 95*95 100*100 105*105 110*110 120*120
130*130 135*135 140*140 150*150 160*160 175*175 180*180
190*190 200*200 220*220 240*240 250*250 260*260 280*280
300*300 320*320 340*340 360*360 380*380 400*400 410*410
420*420 425*425 445*445 450*450 480*480 490*490 500*500
We are a professional manufacturer and supplier of black square pipes. We can manufacture and supply black square tubes of all specifications to you.
Process flow for manufacturing black square tube:
Material selection - material inspection - material warehousing - roll extrusion - straightening - operation inspection, intermediate inspection - heat treatment - mechanical property inspection - chemical analysis - Tensile test - finished product warehousing - finished product inspection - product warehousing
