The steel product price list for today shows that the Φ6.5mm general line Q235 from Tonggang is at 4,940 yuan/ton, slightly higher than last week’s closing price. Similarly, Siping Red Mouth's Φ6.5mm Q235 is priced at 4,910 yuan/ton, while high-line Φ6.5mm Q235 from Steel is at 5,000 yuan/ton. The high-line Φ10mm Q235 is also at 5,000 yuan/ton, and Φ8mm Q335 from Beitai is at 5,000 yuan/ton.
For rebar, Φ12mm HRB335 from Tong Steel is at 4,940 yuan/ton, and Φ14mm HRB335 from the same brand is also 4,940 yuan/ton. For Φ16-25mm HRB335, Linggang, Steel, Beitai, and Xilin are all priced at 4,870 yuan/ton. Meanwhile, Φ8-10mm HRB400 from New Fushun Steel and Tong Steel are both at 5,250 yuan/ton.
In the hot rolled sheet section, 2.0*1250*C Q235 from Tong Steel is at 5,880 yuan/ton, and 2.3*1250*C Q235 from the same brand is at 5,750 yuan/ton. Angang’s 2.75*1250*C Q235 is at 5,650 yuan/ton, while 3.0*1250*C Q235 from Angang and Benxi Steel is at 5,600 yuan/ton.
Cold rolled sheets include 1.0*1000*2000mm Q195 from Angang at 6,530 yuan/ton, and 1.0*1250*2500mm Q195 from Benxi Steel at 6,530 yuan/ton. Puzhong plates show some fluctuations, with 8mm Q235 from Jinan Steel at 6,630 yuan/ton, and 10mm Q235 from Angang at 6,130 yuan/ton.
Low alloy plates such as 8mm Q345 from Angang are at 6,780 yuan/ton, and 10mm Q345 is at 6,280 yuan/ton. Pattern plates range from 3mm to 6mm, with prices between 5,730 and 5,730 yuan/ton. Container plates like 8mm 16MnR from Ansteel are at 6,750 yuan/ton.
Boiler plates such as 8mm 20g from Jinan Steel are at 7,050 yuan/ton, and 20mm 20g from Angang is at 6,550 yuan/ton. Tinplate prices vary, with 0.21mm T57E from Wugang at 9,700 yuan/ton, and 0.25mm T57E from WISCO at 9,600 yuan/ton.
Color coils and galvanized rolls also show different pricing, with 0.5mm TST01 from Baosteel at 8,600 yuan/ton and 0.5mm SGCC from Hengtong at 6,700 yuan/ton. Seamless pipes and welded pipes are also listed, with prices ranging from 5,270 to 6,550 yuan/ton.
Finally, I-beams, channels, and angle steels show prices from 5,050 to 5,400 yuan/ton, with various brands and specifications available in the market. Overall, the steel market remains stable, with minor price adjustments observed across different products.
Tert-Butyl Peroxy Benzoate Catalysis
TBPB is a low volatility ,high purity,liquid, aromatic peroxuester.it is effective as medium of a broad spectrum of monomers e.g .styrene.ethylenn,acrylics.it is also used to cure (copolymerzation) unsaturated resins .
As peroxo compound, TBPB contains about 8.16 wt% of active oxygen and has a self accelerating decomposition temperature (SADT) of about 60 °C. The SADT is the lowest temperature at which self-accelerating decomposition in the transport packaging can occur within a week, and which should not be exceeded while storage or transportation.[2] TBPB should therefore be stored between minimum 10 °C (below solidification) and maximum 50 °C. Dilution with a high-boiling solvent increases the SADT. The half-life of TBPB, in which 50% of the peroxy ester is decomposed, is 10 hours at 104 °C, one hour at 124 °C and one minute at 165 °C. Amines, metal ions, strong acids and bases, as well as strong reducing and oxidizing agents accelerate the decomposition of TBPB even in low concentrations.[ However, TBPB is one of the safest peresters or organic peroxides in handling. The main decomposition products of tert-butyl peroxybenzoate are carbon dioxide, acetone, methane, tert-butanol, benzoic acid and benzene.
Tert-Butyl Peroxy Benzoate Catalysis,Catalysis Tert-Butyl Peroxy Benzoate Tbpb,Tert-Butyl Peroxybenzoate,Tert Butyl Peroxybenzoate
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