40CrNiMo Peeled bar, Plate
2025-10-04 07:36:43 Origin： Remark：0 Click：
YB/T 158 1999 Alloy structure steel bars for steam turbine bolts stock available 40CrNiMo round bar, flat bar, cold drawn rod 40CrNiMo plate, heat treated
MATERIAL DESIGNATION - 40CrNiMo
MATERIAL CATEGORY - Alloy structure steel bars for steam turbine bolts.
MATERIAL CATEGORY - Alloy structure steel bars for steam turbine bolts.
MATERIAL SPECIFICATIONS - YB/T 158 - 1999
Stock Available: Round bar diam. 20 ~ 240 mm
PRODUCT PROFILE & DIMENSIONS
Rod & round bar & disc (diameter): 6.0 ~ 850 mm
Square bar & flat bar: 8 ~ 650 mm
Plate & Sheet: T 8.0 ~ 350 X W 20 ~ 1000 X L mm
Rod & round bar & disc (diameter): 6.0 ~ 850 mm
Square bar & flat bar: 8 ~ 650 mm
Plate & Sheet: T 8.0 ~ 350 X W 20 ~ 1000 X L mm
TYPICAL CHEMICAL COMPOSITIONS (mass weight %)
Carbon, C (％): 0.37 ~ 0.44
Silicon, Si (％): 0.17 ~ 0.37
Manganese, Mn (％): 0.50 ~ 0.80
Phosphorus, P (％) ≤: 0.025
Sulfur, S (％) ≤: 0.015
Chromium, Cr (％): 0.60 ~ 0.90
Molybdenum, Mo (％): 0.15 ~ 0.25
Nickel, Ni (％): 1.25 ~ 1.65
Niobium, Nb (％): -
Titanium, Ti (％): -
Copper, Cu (%): ≤ 0.30
Ferrum, Fe (%): balance.
Carbon, C (％): 0.37 ~ 0.44
Silicon, Si (％): 0.17 ~ 0.37
Manganese, Mn (％): 0.50 ~ 0.80
Phosphorus, P (％) ≤: 0.025
Sulfur, S (％) ≤: 0.015
Chromium, Cr (％): 0.60 ~ 0.90
Molybdenum, Mo (％): 0.15 ~ 0.25
Nickel, Ni (％): 1.25 ~ 1.65
Niobium, Nb (％): -
Titanium, Ti (％): -
Copper, Cu (%): ≤ 0.30
Ferrum, Fe (%): balance.
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT
Heat treatment temperature / ℃ | annealing: -.
Heat treatment temperature / ℃ | Normalizing: -
Heat treatment temperature / ℃ | Quenching: 850 oil cooling
Heat treatment temperature / ℃ | Tempering : ≥ 550 ~ 650 water or oil cooling
Hardness after annealing, ≤ HBW: 269
Tensile strength, Rm ≥ MPa: 980
Yield strength, Rp0.2 ≥ MPa: 835
Elongation, A5 ≥ (%): 12.0
Reduction of area, Z ≥ (%): 55.0
Impact strength, AKu ≥ J: 78
Hardness after final heat treatment / HBW: -
Hardness after annealing, ≤ HBW: 269
Tensile strength, Rm ≥ MPa: 980
Yield strength, Rp0.2 ≥ MPa: 835
Elongation, A5 ≥ (%): 12.0
Reduction of area, Z ≥ (%): 55.0
Impact strength, AKu ≥ J: 78
Hardness after final heat treatment / HBW: -
PRODUCT DESCRIPTION
40CrNiMo is usually produced by EAF + VD + LF / BEF 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.
Final heat treatment - Quenched and tempered.
40CrNiMo is usually produced by EAF + VD + LF / BEF 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.
Final heat treatment - Quenched and tempered.
TECHNICAL SALES ASSISTANCE & SERVICE
20+ years focus on special steel manufacturing and processing.
Stock over 60 grades with a competitive price, along with cutting service for specific requirement.
Customizing special material is welcome.
20+ years focus on special steel manufacturing and processing.
Stock over 60 grades with a competitive price, along with cutting service for specific requirement.
Customizing special material is welcome.
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