1.7737
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Specification 1.7737 Datasheet, 1.7737 Chemical, Forgings 1.7737 Bar - steelmaking, Blooming, hot Forging, Rolling, Heat treatment, Straightened, Ultrasonic test, Cold working, Machined. We also possess advanced precision machining equipments for further processing.
Technical Standards - DIN 17221 (1988) or by agreement.
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
ALLOY MATERIAL DATA SHEET - DIN 1.7737
MATERIAL CATEGORY - Spring steel
MATERIAL SPECIFICATIONS - DIN 17221 (1988)
CHEMICAL COMPOSITION (WEIGHT %)
C (％): 0.40 ~ 0.50
Si (％): 0.15 ~ 0.35
Mn (％): 0.60 ~ 0.80
P (％)≤: 0.035
S (％)≤: 0.035
Cr (％): 1.30 ~ 1.50
Mo (％): 0.65 ~ 0.75
Si (％): 0.15 ~ 0.35
Mn (％): 0.60 ~ 0.80
P (％)≤: 0.035
S (％)≤: 0.035
Cr (％): 1.30 ~ 1.50
Mo (％): 0.65 ~ 0.75
V (％): 0.25 ~ 0.35
MECHANICAL PROPERTIES UNDER ROOM TEMPERATURE
Dimension scope /mm|Flat bar: -
Dimension scope /mm|Round bar: -
TS, ≥|σb/MPa: 1400～1700
YS, ≥|σs/MPa: 1100
EL, ≥|δ5(%): 6.0
RA, ≥|ψ(%): 30.0
Impact, ≥|AKV - DVM-V /J: 14
Dimension scope /mm|Round bar: -
TS, ≥|σb/MPa: 1400～1700
YS, ≥|σs/MPa: 1100
EL, ≥|δ5(%): 6.0
RA, ≥|ψ(%): 30.0
Impact, ≥|AKV - DVM-V /J: 14
HOT WORKING AND HEAT TREATMENT
Hot working temperature /℃: 1050～850
Thermal forming temperature /℃: 950～870
/℃|Annealed: 740～780
/℃|Normalized: -
/℃|Quenched: 930～960 oil cooled
/℃|Tempered: 530～600
Annealed hardness ≤HBS: 210
Thermal forming temperature /℃: 950～870
/℃|Annealed: 740～780
/℃|Normalized: -
/℃|Quenched: 930～960 oil cooled
/℃|Tempered: 530～600
Annealed hardness ≤HBS: 210
PRODUCT DESCRIPTION
The alloy is usually produced by LF /EAF /IFF /VD followed by electroslag refining (ESR) if necessary for special purpose.
Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' requirements.
Bars are usually supplied black/bright in the annealed condition.
Final heat treatment - Quenched and tempered
The alloy is usually produced by LF /EAF /IFF /VD followed by electroslag refining (ESR) if necessary for special purpose.
Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' requirements.
Bars are usually supplied black/bright in the annealed condition.
Final heat treatment - Quenched and tempered
PRODUCT PROFILE & DIMENSIONS
Round bar / Wire rod (Diameter1): 5.5mm to 450mm
Square bar / Flat bar: 3mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.Heavy/middle plate via hot rolled: T6 - 400mm X W70 - 1000mm X L1000-12000mm
Sheet steel via cold rolled: T0.5 - 6mm X W10 - 500mm X L1000 - 2000mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
Round bar / Wire rod (Diameter1): 5.5mm to 450mm
Square bar / Flat bar: 3mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.Heavy/middle plate via hot rolled: T6 - 400mm X W70 - 1000mm X L1000-12000mm
Sheet steel via cold rolled: T0.5 - 6mm X W10 - 500mm X L1000 - 2000mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry, pleased to EMAIL our resident team of qualified production engineers, Email us: sales@ccsteels.com
If you meet further on any technical enquiry, pleased to EMAIL our resident team of qualified production engineers, Email us: sales@ccsteels.com
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