1.7703
2025-03-14 01:07:00 Origin： Remark：0 Click：
Specification 1.7703 technical datasheet Round bar, Flat bar 1.7703 ESR melted, Blooming, Hot forging, Hot rolling, Heat treatment
TECHNICAL DATA SHEET - 1.7703
MATERIAL CATEGORY - Flat products made of steels for pressure purposes
MATERIAL SPECIFICATIONS - EN 10028-2 : 2003
OFFICIAL TEST CERTIFICATE - issued by TUV - SGS - BV
CHEMICAL COMPOSITIONS (mass weight %)
Carbon, C (％): 0.11 ~ 0.15
CHEMICAL COMPOSITIONS (mass weight %)
Carbon, C (％): 0.11 ~ 0.15
Silicon, Si (%): ≤ 0.10
Manganese, Mn (％): 0.30 ~ 0.60
Manganese, Mn (％): 0.30 ~ 0.60
Phosphorus, P (％) ≤: 0.015
Sulfur, S (％) ≤: 0.005
Chromium, Cr (%): 2.00 ~ 2.50
Nickel, Ni (%): ≤ 0.20
Molybdenum, Mo (%): 0.90 ~ 1.10
Nitrogen, N (%): ≤ 0.012
Copper, Cu (%): ≤ 0.20
Niobium, Nb (%): ≤ 0.07
Titanium, Ti (%): ≤ 0.03
Vanadium, V (%): 0.25 ~ 0.35
Boron, B (%): ≤ 0.002
Calcium, Ca (%): ≤ 0.015
MECHANICAL PROPERTIES AND HOT WORKING
Heat condition: + NT
Mechanical property ≥ σb / MPa: 590 ~ 770
Mechanical property ≥ σs / MPa: 435
Mechanical property ≥ δ5 (%): 18.0
Mechanical property ≥ σs / MPa: 435
Mechanical property ≥ δ5 (%): 18.0
Impact Akv J / -20℃: 27
Impact Akv J / 0℃: 34
Impact Akv J / +20℃: 40
Heat condition: + QT
Mechanical property ≥ σb / MPa: 580 ~ 760
Mechanical property ≥ σs / MPa: 415
Mechanical property ≥ δ5 (%): 18
Mechanical property ≥ σs / MPa: 415
Mechanical property ≥ δ5 (%): 18
Impact Akv J / -20℃: 27
Impact Akv J / 0℃: 34
Impact Akv J / +20℃: 40
MAIN FEATURES AND MELTING PROCESS
The steels shall be manufactured by melting process EAF+ VD, EF + 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
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
Round bar (diameter): 5.5mm to 500mm
Square bar / flat bar: 3mm to 800mm
Length: random length, fixed length or based on the customer's special requirement.
Steel strip: T0.20 ~ 3mm X W10 ~ 1000mm X Coil
Heavy/middle plate via hot rolled: T60 - 400mm X W100 - 1000mm X L1000-12000mm
Forging piece: stepped shafts, other different shapes based on OEM.
The steels shall be manufactured by melting process EAF+ VD, EF + 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
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
Round bar (diameter): 5.5mm to 500mm
Square bar / flat bar: 3mm to 800mm
Length: random length, fixed length or based on the customer's special requirement.
Steel strip: T0.20 ~ 3mm X W10 ~ 1000mm X Coil
Heavy/middle plate via hot rolled: T60 - 400mm X W100 - 1000mm X L1000-12000mm
Forging piece: stepped shafts, other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE & SERVICE
If you meet further on any technical enquiry, pleased to EMAIL our resident team of qualified production engineers. E-mail: sales@ccsteels.com.
If you meet further on any technical enquiry, pleased to EMAIL our resident team of qualified production engineers. E-mail: sales@ccsteels.com.
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