38CrMoAlA
2025-01-13 09:56:53 Origin： Remark：0 Click：
GJB 1951-94 Material Specification for Quality Structure Steel Bars for Aviation 38CrMoAlA Stock Available Round bar, Flat bar 38CrMoAlA Forgings
TECHNICAL DATA SHEET - GB 38CrMoAlA
MATERIAL CATEGORY - Specification for Quality Structure Steel Bars for Aviation.
MATERIAL CATEGORY - Specification for Quality Structure Steel Bars for Aviation.
MATERIAL SPECIFICATIONS - GJB 1951 - 94
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.
Mechanical parts - connecting rod, bolt and nuts.
Multidiameter shaft, Pressure vessel parts.
Power generation – turbine fasteners – boiler support rods.
Process plant – fasteners, Mechanical gears, gear shaft, main axis, valve rod.
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 parts - connecting rod, bolt and nuts.
Multidiameter shaft, Pressure vessel parts.
Power generation – turbine fasteners – boiler support rods.
Process plant – fasteners, Mechanical gears, gear shaft, main axis, valve rod.
PRODUCT DESCRIPTION
Alloy Steel 38CrMoAlA 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, or bright annealing specially.
Final heat treatment - Quenched and tempered.
Stock Available: Round bar diam. 20 ~ 230mm, plate, sheet
PRODUCT PROFILE & DIMENSIONS
Rod / round bar / disc (diameter): 5.5 ~ 850mm
Square bar & flat bar: 10 ~ 600mm
Plate & Sheet: cold & hot rolled / forged T 2.0 ~ 300 X W 10 ~ 1000 X L mm
Rod / round bar / disc (diameter): 5.5 ~ 850mm
Square bar & flat bar: 10 ~ 600mm
Plate & Sheet: cold & hot rolled / forged T 2.0 ~ 300 X W 10 ~ 1000 X L mm
TYPICAL CHEMICAL COMPOSITIONS (mass fraction - %)
Carbon, C (％): 0.35 ~ 0.42
Manganese, Mn (％): 0.30 ~ 0.60
Silicon, Si (％): 0.17 ~ 0.37
Phosphorus, P (％) ≤: 0.025
Sulfur, S (％) ≤: 0.015
Chromium, Cr (％): 1.35 ~ 1.65
Nickel, Ni (%): ≤ 0.40
Vanadium, V (％): -
Molybdenum, Mo (％): 0.15 ~ 0.25
Tungsten, W (%): -
Aluminum, Al (%): 0.70 ~ 1.10.
Carbon, C (％): 0.35 ~ 0.42
Manganese, Mn (％): 0.30 ~ 0.60
Silicon, Si (％): 0.17 ~ 0.37
Phosphorus, P (％) ≤: 0.025
Sulfur, S (％) ≤: 0.015
Chromium, Cr (％): 1.35 ~ 1.65
Nickel, Ni (%): ≤ 0.40
Vanadium, V (％): -
Molybdenum, Mo (％): 0.15 ~ 0.25
Tungsten, W (%): -
Aluminum, Al (%): 0.70 ~ 1.10.
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT
Heat treatment temperature / ℃ | annealing: -.
Heat treatment temperature / ℃ | Normalizing: -
Heat treatment temperature / ℃ | Quenching: 930 ~ 950 oil cooling
Heat treatment temperature / ℃ | Tempering : 600 ~ 670 oil or water cooling
Hardness after annealing, ≤ HBW: 156 ~ 269
Tensile strength, Rm ≥ MPa: 930
Yield strength, Rp0.2 ≥ MPa: 785
Elongation, A5 ≥ (%): 15.0
Reduction of area, Z ≥ (%): 50.0
Impact strength, AKu ≥ J: 78
Hardness after final heat treatment / HBW: 285 ~ 321
Hardness after annealing, ≤ HBW: 156 ~ 269
Tensile strength, Rm ≥ MPa: 930
Yield strength, Rp0.2 ≥ MPa: 785
Elongation, A5 ≥ (%): 15.0
Reduction of area, Z ≥ (%): 50.0
Impact strength, AKu ≥ J: 78
Hardness after final heat treatment / HBW: 285 ~ 321
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.
We closely cooperate with the professional inspection partners to strictly control the quality and improve the quality manage system, and guarantee the goods delivery each time. It is proved that we are worth of trusting and will be the strategic partner of the supplying chains in the special steels field.
If you are interested in our products or services, pleased to EMAIL (sales@ccsteels.com) our qualified production engineers or sales department.
Hot search：
Total list
Monthly rank
- 30815M17
- 2638NCD4
- 23ASTM A739 type B11
- 1840Ni6Cr4Mo3
- 1724CrMo5
- 1618X2H4MA
- 1542Cr4Mo2
- 1414CrMoV6-9
- 1330Mn5
- 1320MND5