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BS 317A
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Material technical specifications of BS Aerospace Standard DTD series alloy structural steel GR.BS 317A data sheet,BS 317A Chemical compositions,317A Mechanical property 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 317A

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

OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV

TYPE OF STEEL: Cr - Mo Nitriding steel

CHEMICAL COMPOSITION (WEIGHT %)

C (％):    0.15 ~ 0.35
Si (％):   ≤ 0.35
Mn (％):  ≤ 0.65
P (％)≤:  0.025
S (％)≤:  0.015
Cr (％):   2.50 ~ 3.50

Ni (%): ≤ 0.30
Mo (％): 0.30 ~ 0.70

Other (%): V 0.15 ~ 0.40, W 0.85 ~ 1.10

MECHANICAL PROPERTIES

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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