708M40
2017-08-14 09:09:44 Origin： Remark：0 Click：
Technical 708M40 Datasheet, Grade 708M40 Chemical, 708M40 Properties from Steelmaking, ESR melted, Blooming, Hot forging, Hot rolling,BS 708M40 Heat treat, Straightening, 100% Ultrasonic test, Cold working, Peeled or rough turned machining. 100% Ultrasonic test ASTM E2375 /SAE AMS 2154 /SEP 1923 /GB/T 4162 /EN 10228-3.
TECHNICAL DATA SHEET - BS 708M40
MATERIAL CATEGORY: Alloy steel
MATERIAL SPECIFICATIONS: PD970 -2005
MATERIAL CATEGORY: Alloy steel
MATERIAL SPECIFICATIONS: PD970 -2005
CHEMICAL COMPOSITIONS (WEIGHT - %)
C (％): 0.36 ~ 0.44
C (％): 0.36 ~ 0.44
Si (%): 0.15 ~ 0.40
Mn (％): 0.70 ~ 1.00
P (％)≤: 0.030
S (％)≤: 0.035
Mn (％): 0.70 ~ 1.00
P (％)≤: 0.030
S (％)≤: 0.035
Cr (%): 0.90 ~ 1.20
Ni (%): -
Mo (%): 0.15 ~ 0.25
Other (%): 4 X P + Sn ≤ 0.15
TYPICAL MECHANICAL PROPERTY
Tensile strength,σb/≥ MPa: 775 ~ 925
Yield strength, σ0.2/≥ MPa: 525
Elongation, δ ≥(％): 14.0
Yield strength, σ0.2/≥ MPa: 525
Elongation, δ ≥(％): 14.0
Reduction of area, (%): -
Annealed hardness, HB ≤: 223 ~ 277
MELTING PROCESS
This alloy is generally smelt in Electric Arc Furnace (EAF), EAF+LF+VD, LF + Electroslag remelting (ESR). For a purpose of superior quality, it should be smelt via technology of vacuum refining or by agreement.
PRODUCT PROFILE AND AVAILABLE FORMS
Round bar (Diameter): 5.5 to 550mm
Square bar / Flat bar: T3 to 500mm X W3 ~ 1200mm
This alloy is generally smelt in Electric Arc Furnace (EAF), EAF+LF+VD, LF + Electroslag remelting (ESR). For a purpose of superior quality, it should be smelt via technology of vacuum refining or by agreement.
PRODUCT PROFILE AND AVAILABLE FORMS
Round bar (Diameter): 5.5 to 550mm
Square bar / Flat bar: T3 to 500mm X W3 ~ 1200mm
Wire rod (Diameter): 0.30 to 13mm
Steel strip: THK0.15 ~ 2.50 X Width 8.0 ~ 185mm
Length: Fixed length or random length or based on the customer's special requirement.
Steel strip: THK0.15 ~ 2.50 X Width 8.0 ~ 185mm
Length: Fixed length or random length or based on the customer's special requirement.
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, 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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