DTD 740
2017-07-26 10:41:24 Origin： Remark：0 Click：
Material technical specifications of BS Aerospace Standard DTD series alloy structural steel BS 740 data sheet, BS 740 Chemical compositions,Gr BS 740 Mechanical properties from Steelmaking,ESR melted, Blooming, Hot forging, Hot rolling, Heat treatment, 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 SPECIFICATION & DATASHEET - BS 740
MATERIAL CATEGORY: Aerospace Standard "DTD" series alloy structural steel
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
TYPE OF STEEL: Mn - B alloy steel
CHEMICAL COMPOSITION (WEIGHT %)
C (％): 0.10 ~ 0.16
Si (％): ≤ 0.40
Mn (％): 0.40 ~ 0.70
P (％)≤: 0.025
S (％)≤: 0.015
Cr (％): -
Si (％): ≤ 0.40
Mn (％): 0.40 ~ 0.70
P (％)≤: 0.025
S (％)≤: 0.015
Cr (％): -
Ni (%): -
Mo (％): 0.40 ~ 0.60
Mo (％): 0.40 ~ 0.60
B (%): 0.0015 ~ 0.0050
MECHANICAL PROPERTIES
Tensile strength σb≥/MPa: 980
Yield strength σs≥/MPa: 785
Elongation δ5≥(%): 10.0
Yield strength σs≥/MPa: 785
Elongation δ5≥(%): 10.0
AKV≥/J: -
QT hardness HBS: 207 min.
QT hardness HBS: 207 min.
PRODUCT PROFILE
Round bar / Wire rod (Diameter): 0.50mm to 500mm
Square bar / Flat bar: 3mm to 350mm
Length: Fixed length or random length or based on the customer's special requirement.
Round bar / Wire rod (Diameter): 0.50mm to 500mm
Square bar / Flat bar: 3mm to 350mm
Length: Fixed length or random length or based on the customer's special requirement.
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.
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. E-mail: lh.steel@hotmail.com.
And you also can reach our sales department: sales@ccsteels.com
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