31NiCr14 & 1.5755
2025-05-26 16:00:00 Origin： Remark：0 Click：
Steel 31NiCr14 a high tensile steel, 31NiCr14 Round bar, flat bar, and forgings 1.5755 Steelmaking, ESR melted, Hot forging/rolling, Heat treatment, 100% Ultrasonic test, Cold machining.
TECHNICAL DATA SHEET - 31NiCr14 & 1.5755
MATERIAL CATEGORY: High-strength low alloy structural steel
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
CHEMICAL COMPOSITIONS (mass weight %)
Carbon, C (％): 0.27 ~ 0.35
CHEMICAL COMPOSITIONS (mass weight %)
Carbon, C (％): 0.27 ~ 0.35
Silicon, Si (%): 0.15 ~ 0.35
Manganese, Mn (％): 0.40 ~ 0.90
Manganese, Mn (％): 0.40 ~ 0.90
Phosphorus, P (％) ≤: 0.035
Sulfur, S (％) ≤: 0.035
Chromium, Cr (%): 0.55 ~ 0.95
Nickel, Ni (%): 3.25 ~ 3.75
Molybdenum, Mo (%): -
MECHANICAL PROPERTY UNDER ROOM TEMP.
Condition: quenching and tempering treated
Bar size /mm: 17 ~ 40
Tensile strength, σb ≥ MPa: 930 ~ 1080
Yield strength, σ0.2 ≥ MPa: 735
Elongation, δ5 ≥ (％): 11.0
Reduction of area, ф ≥ (％): 45.0
Hardness | HBW: -
Yield strength, σ0.2 ≥ MPa: 735
Elongation, δ5 ≥ (％): 11.0
Reduction of area, ф ≥ (％): 45.0
Hardness | HBW: -
Hardness after soft annealing: -
MAIN FEATURES AND MELTING PROCESS
The steels shall be manufactured by melting process EAF+ VD, IFF + ESR Melted. VIM + ESR can be handled by agreement. Forgings may be furnished in one of the following conditions: stress relieving; annealing; solution treatment; solution treatment and ageing; normalizing; normalizing and tempering; or quenching and tempering.
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.
PRODUCT PROFILE AND DIMENSIONS
Round bar / disc (diameter): 5.5mm to 800mm
Square bar / flat bar: 10mm to 610mm
Length: random length, or based on the customer's special requirement.
Steel strip: T0.20 ~ 3mm X W10 ~ 2000mm X Coil
Heavy/middle plate via hot rolled: T4 - 200mm X W100 - 1500mm X L1000 - 12000mm
Forging piece: stepped shafts, other different shapes based on OEM requirement.
The steels shall be manufactured by melting process EAF+ VD, IFF + ESR Melted. VIM + ESR can be handled by agreement. Forgings may be furnished in one of the following conditions: stress relieving; annealing; solution treatment; solution treatment and ageing; normalizing; normalizing and tempering; or quenching and tempering.
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.
PRODUCT PROFILE AND DIMENSIONS
Round bar / disc (diameter): 5.5mm to 800mm
Square bar / flat bar: 10mm to 610mm
Length: random length, or based on the customer's special requirement.
Steel strip: T0.20 ~ 3mm X W10 ~ 2000mm X Coil
Heavy/middle plate via hot rolled: T4 - 200mm X W100 - 1500mm X L1000 - 12000mm
Forging piece: stepped shafts, other different shapes based on OEM requirement.
TECHNICAL SALES ASSISTANCE & SERVICE
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers. E-mail us: sales@ccsteels.com.
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers. E-mail us: sales@ccsteels.com.
Previous page：4118H/H41180
Last page：ASTM B408 N08120
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