4145H Laser Quenching: The Golden Window Where Hardness Peaks and Wear Drops — 2 kW, 400 mm/min
By Harris, Technical Staff, SHUNFU METAL Laser quenching process sheets usually promise one number: a single hardness, a single speed, a single power. The 2021 study by Liang Chenfan et al. (Transactions of Materials and Heat
4145H Laser Quenching Parameters: How Power and Scan Speed Control Hardness and Wear Mode
By Harris, Technical Staff, SHUNFU METAL Laser quenching is a two-dial process: laser power and scanning speed. Spot size and track overlap are geometry; everything that matters for hardness and wear sits on those two dials.
Laser Quenching vs Induction Hardening for 4145H Drill Collar Steel: Why Precision Wins
By Harris, Technical Staff, SHUNFU METAL Laser quenching — laser transformation hardening — is the fastest-growing surface treatment in the drilling industry, yet most drill collar buyers still specify induction or whole-part hardening out of habit.
Hunan Shunfu Steel to Exhibit at GASTECH 2026 in Bangkok — CRA, OCTG & Stainless Steel Solutions | Booth I11
Hunan Shunfu Steel to Exhibit at GASTECH 2026 in Bangkok GASTECH, widely recognized as the world’s premier exhibition and conference for the gas, LNG, hydrogen, and low-carbon energy industries, will open its doors from September 14
The Ferric Chloride Test Tells the Truth: Pitting Is an Autocatalytic Runaway
The Ferric Chloride Test Tells the Truth: Pitting Is an Autocatalytic Runaway By Harris, Technical Engineer at SHUNFU METAL A passive film is not a permanent shield. The moment a pit nucleates, the local chemistry inside
Why Temperature, Not Chloride Alone, Decides Whether Stainless Steel Pits
Why Temperature, Not Chloride Alone, Decides Whether Stainless Steel Pits By Harris, Technical Engineer at SHUNFU METAL Operators blame "high chloride" for almost every pitting failure in the field. The data we collected on P550 tells