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   AISI 8620 1,6523 | 21NiCrMo2 | SNCM220          20NiCrMo13-4 1.6660

   ASTM 52100 | 1,3505 | 100Cr6 | SUJ2 | EN31       33NiCrMoV14-5 1.6956     

   AISI 4340 | 36CrNiMo4 | 1,6511 | EN24 | 817M40 | SNCM439  

   EN DIN 34CrNiMo6 | 1,6582 | 4337 Engineering Steel

  BS EN 42CrMo4 | 1,7225 Alloy Steel  

   1,2379 | X153CrMo12 | SKD11

   UNS S31254 1.4547 F44 Super Austenitic Stainless Steel

   DIN 1.6657 14NiCrMo13-4 16NCD13 832M13 EN36C

   DIN1.6587 X4317 18CrNiMo7-6 17CrNiMo6 18NCD

    DIN 1.6566 17NiCrMo6-4 18NiCrMo5 817M17 SAE4317

    DIN 1.6657 14NiCrMo13-4 16NCD13 832M13 EN36C           

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RODUCT DESCRIPTION
Proven performance in long-term service.Extensive database of long term, high temperature test results.High room and elevated temperature strength.Good creep.High notch tolerance.
Thermal expansion coefficients compatible with low alloy steel turbine casing materials.Lower design and operating risks
Simplified design for bolting configuration compared with martensitic steels or high nickel alloys.Alloy structural 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.