المدير العام

Mehdi Malek

مهدي مالك هو المدير العام لشركة Arsam Metal. يدير شبكة التوريد والجانب الفني في الشركة، ويعود إليه القرار الأخير في المواصفات والمستندات وموعد شحن كل دفعة. يكتب في المدونة عن الأسئلة التي تطرحها المسابك ومصانع الصلب كل يوم: أي سبيكة، وأي حجم حبيبات، وأي شهادة مطلوبة فعلًا.

المقالات

Choosing a recarburizer: CPC, GPC or calcined anthracite for your melt?

Recarburizer choice for grey iron, ductile iron and steel: fixed carbon, sulphur, nitrogen, recovery and the cost per kg of dissolved carbon. When GPC pays.

2026-10-147 دقيقة

What documents does an EU buyer ask for in a ferroalloy quote, and which ones actually apply?

COA, MTC 3.1, CBAM emissions data, A.TR and EUR.1: which document applies to which ferroalloy or SiC shipment into the EU, and what to send with your RFQ.

2026-10-147 دقيقة

Silicon carbide in the induction furnace: instead of FeSi, or alongside it?

Metallurgical SiC brings both Si and C and keeps nucleation alive longer than FeSi. How much FeSi and carbon it replaces, when to add it, and the break-even price.

2026-09-247 دقيقة

Si Metal 441 or 553? Choosing the right grade for aluminum casting and silicone chemistry

Si Metal 441 (Fe≤0.4%, Ca≤0.1%) vs 553 (Fe≤0.5%, Ca≤0.3%): Al-Si casting intermetallics, Rochow-process trace-element control, and the real grade-cost call.

2026-07-086 دقيقة

HC FeMn or FeSiMn? The metallurgy behind the manganese alloying decision

Choosing between high-carbon ferromanganese and ferrosilicomanganese: deoxidation, desulfurization, dosage math and EAF bath chemistry. Mn ≥65% spec, per-ton cost difference.

2026-06-156 دقيقة

FeSiMg Mg fade kinetics in ductile iron: why the 10-minute window is real

The 10-minute critical window from nodularization to pour. Mg fade physics, FeSiMg particle size logic, and numbers from a Turkish foundry case.

2026-04-246 دقيقة