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BS 239A / En 42
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Material technical specifications BS Aerospace Standard DTD series alloy structural steel BS 239A datasheet,BS 239A/En 42 Chemical composition,BS 239A 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 DTD 239A & En 42

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

OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV

TYPE OF STEEL: Spring steel wire

CHEMICAL COMPOSITION (WEIGHT %)

C (％):    0.75 ~ 0.85
Si (％):   ≤ 0.30
Mn (％):  ≤ 1.00
P (％)≤:  0.025
S (％)≤:  0.015
Cr (％):   -

Ni (%): -
Mo (％): -

MECHANICAL PROPERTIES UNDER ROOM TEMP.

Tensile strength σb≥/MPa: 1100
Yield strength σs≥/MPa: 950
Elongation δ5≥(%): 6.0

AKV≥/J: -
Hardness HBS: 310 max.

PRODUCT PROFILE
Round bar / Wire rod (Diameter): 0.50mm to 800mm
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. E-mail: lh.steel@hotmail.com.

And you also can reach our sales department: sales@ccsteels.com

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