MATERIAL CATEGORY - hardening alloy MELTING PROCESS- EAF + AOD / + ESR HS code for Customs- 7228 4000 / 7228 5000 / 7228 6000 Official Test report - issued by TUV - SGS - BV CHEMICAL COMPOSITION (mass fraction - %) Carbon, C (%): 0.22 ~ 0.32 Silicon, Si (%): ≤ 0.15 Manganese, Mn (%): 0.15 ~ 0.40 Phosphorus, P (%) ≤: 0.010 Sulfur, S (%) ≤: 0.007 Chromium, Cr (%): 1.20 ~ 1.80 Molybdenum, Mo (%): 0.25 ~ 0.45 Nickel, Ni (%): 2.40 ~ 3.10 Vanadium, V (%): 0.05 ~ 0.15 MECHANICAL PROPERTIES UNDER ROOM TEMP. Tensile strength, Rm ≥ MPa: 850 Yield strength, Rp0.2 ≥ MPa: 750 Elongation, A5 ≥ (%): - Reduction of area, Z ≥ (%): - PRODUCT DESCRIPTION Alloystructural steel is provided with higher yield strength, tensile strength, endurance strength, yield ratio (about 0.85 generally ) enough plasticity and toughness. The concentration of alloy element of this kind of steel is quite high, mainly are corrosion resistant steel, heat resistant steel, wear resistant steel, and other special steels of physical and chemical properties. Alloy structural steel has preferable mechanical property than that of carbon structural steel, high performance of heat treatment especially. The alloy is usually produced by EAF /VD /LF followed by electroslag refining (ESR) if necessary for special purpose. Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different level according to the buyers' requirements. Bars are usually supplied bright in the annealed condition, or bright annealing specially. Final heat treatment - Quenched and tempered. PROFILE AND DIMENSIONS Round bar / disc / rod (diameter): 5.5mm to 850mm Square bar / Flat bar: 10mm to 650mm Forged steel shape: stepped shafts, other different shapes based on OEM. ADVANTAGE & SUPERIOR SERVICE 20+ years Focus On Special Steel Manufacturing and processing. Stock over 60 grades with a competitive price, along with cutting service for specific requirement. Customizing special material is welcome.
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