SNCM220 Alloy Steel
SNCM220 Alloy steel manufacturers and suppliers, supplied in round rods,square/flat bars,rollers,shafts,blocks and forging pieces.
SNCM220 Steel is a low nickel,chromium-molybdenum alloy steel as per JIS standard. It gives a hard case with a strong core whilst retaining a remarkable degree of toughness. SNCM220 is suitable for parts which require a good toughness and wear resistance.
| Chemical Composition | |||||||
| Carbon | Manganese | Silicon | Chromium | Molybdenum | Phosphorous | Sulphur | |
| Min | 0.17 | 0.6 | 0.15 | 0.4 | 0.15 | ||
| Max | 0.23 | 0.9 | 0.35 | 0.65 | 0.3 | 0.035 | 0.04 |
| Mechanical Property( for guidance only) | |||||||
| Tensile strength | Yield strength | Elongation | Reduction of area | ||||
| 980Mpa | 745MPa | 11 | 45 | ||||
| Related Specification | |||||||
| Werkstoff:1.6523 DIN:20NiCrMo2-2 BS:805M20 AISI/ASTM:8620 |
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| Heat Treatment | |||||||
| Hardening&Tempering Hardening is used to meet specific mechanical properties which can make the material fit for use. Tempering is used to remove the stresses and brittleness caused by quenching, develop the required mechanical properties,and improve dimensional stability and toughness. Annealing Annealing is a process used to soften the material,enhance the machinability and toughness,increase the ductility and improve the homogeneity in material. Normalizing Normalizing is used to make material softer , refine the grain size and improve the uniformity of microstructure and properties. |
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| Delivery Condition | |||||||
| Shape:Round / Square / Flat Bars, Shafts, Rollers, Blocks. Forged round bar Diameter: 80-1,000mm Length: 3,000-10,000mm Rolled round bar Diameter: 10-300mm Length: 3,000-10,000mm(can be customized) Forged square bar Size: 150×150-600×600mm Length: 3,000-8,000mm Surface condition: Black/Peeled/Smooth Turned Tolerance:As per customer requirement Straightness:Max 3mm/m(Enhanced straightness may be available on request) |
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| Structure & NDE | |||||||
| Grain size : ASTM 5 or finer Forging ratio :minimum 3:1 Ultrasonic test: 100% ultrasonically tested As per SEP1921 Class C/c , D/d or ASTM A388 |
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| Quality Certification | |||||||
| A material test report will be provided, documenting the following: 1.Chemical analysis 2.Mechanical properties 3.Surface hardness 4.Grain size 5.Forging ratio 6.NDE test method/criteria |
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