25X2H4BA
2016-12-29 09:59:01 Origin： Remark：0 Click：
Material standard specification of TOCT 4543 type 25X2H4BA data sheet,Grade 25X2H4BA Chemical compositions, 25X2H4BA Mechanical properties from Steelmaking,ESR melted, Blooming,25X2H4BA Hot forging,alloy 25X2H4BA Hot rolling, 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 4543 - 1971.
TECHNICAL SPECIFICATION - TOCT 4543 Grade 25X2H4BA
TECHNICAL SPECIFICATION: TOCT 4543 - 1971
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
MATERIAL CATEGORY: alloy structural steel Cr - Ni - Mo type
CHEMICAL COMPOSITION (WEIGHT %)
C (％): 0.21 ~ 0.28
Si (％): 0.17 ~ 0.37
Mn (％): 0.25 ~ 0.55
P (％) ≤: 0.025
S (％) ≤: 0.025
Cr (％): 1.35 ~ 1.65
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
MATERIAL CATEGORY: alloy structural steel Cr - Ni - Mo type
CHEMICAL COMPOSITION (WEIGHT %)
C (％): 0.21 ~ 0.28
Si (％): 0.17 ~ 0.37
Mn (％): 0.25 ~ 0.55
P (％) ≤: 0.025
S (％) ≤: 0.025
Cr (％): 1.35 ~ 1.65
Ni (％): 4.00 ~ 4.50
Mo (％): -
Mo (％): -
W (%): 0.80 ~ 1.20
Cu (%): ≤ 0.30
MECHANICAL PROPERTIES UNDER ROOM TEMPERATURE
Hot working temperarture: 1150 ~ 850 Deg.
Hot working temperarture: 1150 ~ 850 Deg.
Heat treatment: Quenching 850 Deg. oil cooling
Tempering 550 oil or water cooling
Tensile strength,σb/≥ MPa: 1080
Yield strength, σ0.2/≥ MPa: 930
Elongation, δ ≥(％): 11.0
Reduction of area, ф ≥ (％): 45.0
Tensile strength,σb/≥ MPa: 1080
Yield strength, σ0.2/≥ MPa: 930
Elongation, δ ≥(％): 11.0
Reduction of area, ф ≥ (％): 45.0
Impact, AK (J/cm2): 71
Annealed hardness | HBW: 269 min.
Annealed hardness | HBW: 269 min.
TYPICAL APPLICATIONS
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.
Power generation – turbine fasteners – boiler support rods
Process plant – fasteners
Mechanical gears, gear shaft, main axis, valve rods
Mechanical parts - connecting rods, bolts and nuts
Multidiameter shafts
OFFERING FORMS AND SHAPES
Round bar (Diameter): 0.50mm to 500mm
Square bar / Flat bar: 3mm to 500mm
Steel strip: T0.20 ~ 3mm X W10 ~ 2000mm X Coil
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
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.
Power generation – turbine fasteners – boiler support rods
Process plant – fasteners
Mechanical gears, gear shaft, main axis, valve rods
Mechanical parts - connecting rods, bolts and nuts
Multidiameter shafts
OFFERING FORMS AND SHAPES
Round bar (Diameter): 0.50mm to 500mm
Square bar / Flat bar: 3mm to 500mm
Steel strip: T0.20 ~ 3mm X W10 ~ 2000mm X Coil
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE
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