Favorable Factors: 1. Strip steel prices up to 3,395 CNY/MT; cost support strengthening 2. China export orders index returned to expansion at 50.3% in April 3. Middle East supply gap from Iran disruption boosting pipe demand 4. May HRC export plans up 23% MoM to 1.14M MT 5. SE Asia and Africa demand remains firm […]
Favorable Factors: 1. Tangshan Ruifeng strip steel 685-885mm at CNY 3,285/MT; prices stable WoW 2. RMB/USD rate holding at 6.77-6.82 band; currency volatility limited 3. SE Asia demand sustained; Vietnam and Indonesia procurement active 4. Infrastructure investment continues; national pipeline projects on track 5. Steel mills production discipline; blast furnace capacity utilization stable Adverse Factors:
Favorable Factors: 1. Strip steel prices hold at 3,285 CNY/MT; Tangshan steel mills maintain prices stable 2. Seasonal peak demand continues (Mar-Apr); social inventory drawdown for 6th consecutive week 3. SE Asia and West Africa demand rising rapidly; new market share expanding 4. Policy support: National pipeline network construction drives long-term demand 5. X70+ high-grade
Favorable Factors Strip steel prices rise to 3,240 CNY/MT; cost support strengthens (+20 CNY from last week) Seasonal peak season (Mar-Apr) accelerates demand; inventory drawdown continues SE Asia and West Africa demand rising rapidly; new market share expanding Policy stimulus: 8,000B CNY special bonds for infrastructure drives pipe demand Adverse Factors EU 2026 steel quota
Introduction to Galvanizing Methods Galvanizing applies protective zinc coating to steel. Hot-dip and electro-galvanizing produce coatings with different properties, thickness, and applications. Understanding these differences helps in selecting the right method. Galvanizing Process Comparison Hot-Dip Galvanizing Steel is immersed in molten zinc bath (450°C) to form metallurgically bonded coating. Electro-Galvanizing Zinc is deposited on steel
Introduction to Pipe Coating Systems External pipe coatings protect steel pipes from corrosion. 3PE, FBE, and 2PE are the most common coating systems. Understanding their characteristics helps in selecting the right coating for specific environments. Coating System Overview FBE (Fusion Bonded Epoxy) Single-layer epoxy coating applied electrostatically and cured in oven. Forms strong chemical bond
Introduction to Steel Heat Treatment Heat treatment controls heating and cooling to alter steel microstructure and mechanical properties. Normalizing, annealing, and quenching are the most common heat treatment processes, each producing distinct characteristics. Heat Treatment Process Parameters Process Temperature Range Cooling Method Cooling Rate Annealing 780-900°C Furnace cooling Very slow (10-50°C/hr) Normalizing 850-950°C Air cooling
Introduction to Surface NDT Methods Eddy current testing and magnetic particle testing are essential for detecting surface and near-surface defects. Both methods are widely used in the steel industry for quality control and inspection applications. Testing Principle Comparison Eddy Current Testing (ECT) Eddy currents are induced electrical currents generated in conductive materials by an alternating
Introduction to Steel Pipe Testing Non-destructive testing (NDT) methods are essential for ensuring steel pipe quality. Hydrostatic and ultrasonic testing serve different purposes and complement each other in comprehensive quality assurance programs. Testing Method Overview Hydrostatic Testing Hydrostatic testing evaluates pipe integrity by filling the pipe with water and applying pressure above the design pressure
Introduction to Pipe Pile Selection Pipe piles are essential deep foundation elements. The choice between open-end and closed-end affects driving characteristics, load capacity, and construction methods. Understanding these differences is crucial for efficient foundation design. Open-End vs Closed-End Pile Comparison Aspect Open-End Pile Closed-End Pile Configuration Hollow cylinder, soil inside during driving Plate welded at