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DTD 730
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Specification DTD730 Aerospace, DTD730 datasheet, DTD 730 Chemical, DTD 730 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 - DTD 730

MATERIAL CATEGORY: Aerospace Standard "DTD" series alloy structural steel

OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV

TYPE OF STEEL: Cr - Mo - V alloy nitriding steel

CHEMICAL COMPOSITION (WEIGHT %)

C (％):    0.30 ~ 0.40
Si (％):    0.10 ~ 0.30
Mn (％):  0.40 ~ 0.80
P (％)≤:  0.025
S (％)≤:  0.015
Cr (％):   2.50 ~ 3.50

Ni (%): ≤ 0.40
Mo (％): 0.70 ~ 1.20

V (%): 0.10 ~ 0.30

MECHANICAL PROPERTIES UNDER ROOM TEMP.

Tensile strength σb≥/MPa: 1300 ~ 1470
Yield strength σs≥/MPa: 1100
Elongation δ5≥(%): 8.0

Impact strength, AKv ≥/J: -
Annealed hardness HBS: 380 ~ 430

PRODUCT PROFILE & DIMENSIONS
Round bar / Wire rod (Diameter): 5.5mm 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.

TECHNICAL SALES ASSISTANCE
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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