hot sell Black Steel Pipe, ERW low carbon hollow section tube
Brand : Sincere
Product origin : Tianjin, China
Delivery time : 20days-25days
Supply capacity : 50000tons per month
Black annealed steel tube is also called cold rolled steel pipe and tubes,it is also called hollow secion it is one of the most common steel tubes. with the ERW tecnical , Low carbon material , If cold rolled steel is heated to annealing temperature, the surface color turns black due to high temperature contact with air, it is called black annealed steel pipes. Its surface has not been polished so it is black. The physical properties become soft, convenient for further welding into steel pipe. Common hardness 57HRB, can also be reduced to different hardness according to need.
Commodity name | China Black Square Steel Pipe black annealed steel square ,round tube rectangular low carbon hollow section tube |
Material grade | Q195=S195/A53 Grade A Q235=S235/A53 Grade B/A 500 Grade A/STK 400/SS400?ST42.2 Q355=S355JR /A500Grade B Grade C |
Standard | APL 5L ASTM A106 ASTM A53, ASTM A795 BS 1387, EN10255, BS1139, EN39 ISO65 JIS G3444 GB/T3091 GB/T 13793 |
Pipe surface | black annealed, cold rolled, hot rolled, galvanzied surface |
steel hardness | <=55 |
Pipe ends | Plain ends/bevel ends with plastic caps/ Threaded both ends with coupling and caps/ Grooved ends |
CERTIFICATES | ISO9001/BSI/UL/FM |
TRADE TERMS | FOB/CFR/CIF/EXW/FCA |
PAYMENT TERMS | 30% & 70% T/T, 100% LC AT SIGHT( OTHERS CAN BE NEGOTIATED) |
DELIVERY TIME | 20-30DAYS AFTER RECEIVE DEPOSIT OR LC |
HOT SALES MARKET | SOUTHEAST ASIA, SOUTH ASIA, MIDDLE EAST, EUROPE, MIDDLE& SOUTH AMERICA , AFRICA AND OCEANIA |
Your requirement is our persuit, welcome to visit our factory and office. pls let us know your requirement, we will try our best to satisfy your requirement !!!
