X25CrMnNiN25-9-7
2014-12-28 13:22:05 Origin： Remark：0 Click：
Austenitic heat-resisting steel X25CrMnNiN25-9-7 round bar, forged ring Steelmaking, ESR, blooming, forging, rolling, heat treatment, straightened, cold machined.
TECHNICAL DATA SHEET - DIN X25CrMnNiN25-9-7
MATERIAL CATEGORY: Heat resisting steel / Austenitic corrosion resisting steels
FEATURES AND CLASSIFICATIONS
Heat-resistant steel means one type of steel possesses inoxidizability, enough high-temperature strength and excellent heat-resistant quality under high temperature. Heat resistant steel is divided into oxidation resistant steel and refractory steel according to its performance. Further into Austenitic heat-resistant steel, Martensitic heat-resistant steel, Ferritic heat-resistant steel and Pearlitic heat-resistant steel according to its normalizing.
MATERIAL SPECIFICATIONS - BS EN 10095 (2002/1999)
CHEMICAL COMPOSITION (mass weight - %)
Carbon, C (％): 0.20～0.30
Silicon, Si (％): ≤ 1.00
Manganese, Mn (％): 8.00~10.0
Phosphorus, P (％)≤: 0.045
Sulfur, S (％)≤: 0.015
Chromium, Cr (％): 24.0～26.0
Nickel, Ni (％): 6.00～8.00
Nitrogen, N (％): 0.20～0.40
MECHANICAL PROPERTIES UNDER ROOM TEMPERATURE
Thermal forming temp/℃: 1150～800
Heat treatment temp/℃|soft annealing: 750～800
Heat treatment temp/℃|quenching: —
Condition: annealed
Tensile strength, Rm / MPa: 550～750
Yield strength, Rp0.2 ≥ MPa: 255
Elongation, A5 ≥(％): 25
APPLICATION FIELD
Heat-resistant steel is widely used in the field of manufacturing the boiler, steam turbine, motive power machine, industrial furnace, and other mechanical parts of aviation, petrochemical engineering operating at high temperature. Those parts must hold the features: high temperature strength, resistance to high temperature oxide etch, enough toughness, excellent machinability, weldability, structure stability based on different usages.
MANUFACTURING TECHNOLOGY - SMELTING
Heat resistant steel is generally smelt in electric arc furnace or induction furnace. For higher quality,it should be smelt via technology of vacuum refining and external refining.
PRODUCT PROFILE & SIZE
Round bar / Wire rod (Diameter): 5.5 mm to 500mm
Square bar / Flat bar: 10mm to 550mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T60 - 200mm X W100- 1000mm X L1000-12000mm
Forging piece: stepped shafts.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers, Email: sales@ccsteels.com.
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