A572 grade can be divided into five levels: sa572 grade 60 low alloy steel sheet, A572 grade 42 (290), 50 (345), 55 (380) for riveted, bolted or welded structural parts; A572 grade 60 (415) and 65 (450) for bridge riveted and bolted structural parts or welded structural parts for other purposes. Chemical composition of A572 Gr50 steel: C: ≤ 0.20, Si: ≤ 0.40, Mn: ≤ 1.50, P: ≤ 0.04, S: ≤ 0.05, Nb: ≤ 0.005-0.05.
The price of BBNsteel cold rolled coil SPCC size 0.6*1250*C on March 10: 5990 yuan/ton, down 20 from yesterday. The price of 0.8*1250*C SPCC cold-rolled coil: 5970 yuan/ton, down 20 from yesterday. The price of 1.0*1250*C SPCC cold-rolled coil : 5640 yuan/ton, down 20 from yesterday.
From the name, we can clearly know that seamless pipe is seamless steel pipe, which is different from welded pipe. Seamless pipe is actually a kind of steel with hollow section. sa572 grade 60 low alloy steel sheet, Seamless pipe has many advantages, such as: 1, the compressive capacity of seamless pipe is very good, the place with high bearing strength will not crack, and its bearing capacity is very good. 2. Seamless pipe has no welding point, so it is more corrosion-resistant and can bear larger pressure.