18X3MB
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Material standard specifications of TOCT 20072 - 1994 type 18X3MB data sheet, 18X3MB Chemical compositions, 18X3MB Mechanical properties from Steelmaking, ESR melted, Blooming,Gr. 18X3MB Hot forging, Hot rolling, Grade 18X3MB Heat treatment, Straightening, 100% Ultrasonic test ASTM E2375 /SAE AMS 2154 /SEP 1923 /GB/T 4162 /EN 10228-3. Cold working, Peeled or rough turned machining. Material technical specification TOCT 20072 - 1994.
TECHNICAL SPECIFICATION - TOCT 20072 Grade 18X3MB
TECHNICAL SPECIFICATION: TOCT 20072 - 1994
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
MATERIAL CATEGORY: High temperature structural steel
CHEMICAL COMPOSITION (WEIGHT %)
C (％): 0.15 ~ 0.20
Si (％): 0.17 ~ 0.37
Mn (％): 0.25 ~ 0.50
P (％) ≤: 0.030
S (％) ≤: 0.025
Cr (％): 2.50 ~ 3.00
Mo (%): 0.50 ~ 0.70
V (％): 0.05 ~ 0.15
V (％): 0.05 ~ 0.15
W (％): 0.50 ~ 0.80
Ti (％): ≤ 0.03
Ni (％): ≤ 0.30
Cu (％): ≤ 0.20
MECHANICAL PROPERTIES
Annealed hardness | HBS: 170 ~ 220
Tensile strength,σb/≥ MPa: 550 ~ 740
Cu (％): ≤ 0.20
MECHANICAL PROPERTIES
Annealed hardness | HBS: 170 ~ 220
Tensile strength,σb/≥ MPa: 550 ~ 740
Yield strength, σ0.2/≥ MPa: 390
Elongation, δ ≥(％): 17.0
Reduction of area, ф ≥ (％): -
MANUFACTURING TECHNIQUE
Reduction of area, ф ≥ (％): -
MANUFACTURING TECHNIQUE
The alloy is usually produced by IFF, LF, 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 brightly in the annealed condition.
PROCESSING PROPERTY
Alloy structural steels are widely used in the filed of ship, vehicle, airplane, guided missile, weapons, railway, bridges, pressure vessel, machine tools, mechanical components with a bigger sectional size and so on.
Mechanical gears, gear shaft, main axis, valve rod
Mechanical parts - connecting rod, bolt and nut
Multidiameter shaft
PRODUCT FORMS AVAILABLE
Round bar (Diameter): 5.50mm to 800mm
Square bar / Flat bar: 3mm to 500mm
Sheet steel via cold rolled: T0.5 - 3.0mm X W600- 1000mm X L1000 - 2000mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
Round bar (Diameter): 5.50mm to 800mm
Square bar / Flat bar: 3mm to 500mm
Sheet steel via cold rolled: T0.5 - 3.0mm X W600- 1000mm X L1000 - 2000mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers.
- Email: lh.steel@hotmail.com
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