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DTD331
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Specifications DTD331 Aerospace, DTD331 data sheet, DTD331 Chemical, DTD331 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 - Grade DTD 331

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

OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV

TYPE OF STEEL: Nr - Cr steel

CHEMICAL COMPOSITION (WEIGHT %)

C (％):    0.25 ~ 0.40
Si (％):   ≤ 0.30
Mn (％):  ≤ 0.70
P (％)≤:  0.025
S (％)≤:  0.015
Cr (％):   0.75 ~ 1.50

Ni (%): 3.00 ~ 4.50
Mo (％): 0.50 ~ 0.85

V (%): 0.15 ~ 0.40

W (%): 0.85 ~ 1.10

MECHANICAL PROPERTIES UNDER ROOM TEMP.

Tensile strength σb≥/MPa: 980
Yield strength σs≥/MPa: 785
Elongation δ5≥(%): 12.0

Impact strength, AKv ≥/J: -
Hardness HBS: -

PRODUCT PROFILE & DIMENSIONS
Round bar / Wire rod (Diameter): 5.5mm to 550mm
Square bar / Flat bar: 3mm to 800mm
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, Email: sales@ccsteels.com

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