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A470 Grade D Class 8
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ASTM A470 Grade D Class 8 Ex-stock Suppliers, A470 Grade D Class 8 Round bar, Flat bar, Plate ESR melted, Heat treatment, Cold worked.

TECHNICAL DATA SHEET - ASTM A470 Grade D Class 8

TECHNICAL SPECIFICATION: ASTM A470 - 2015

OFFICIAL TEST CERTIFICATE: issued by TUV - SGS

MATERIAL TYPE: Cr - Mo - V steel
CHEMICAL COMPOSITIONS (mass weight - %)
Carbon, C (％): 0.25 ~ 0.35
Manganese, Mn (％): ≤ 1.00
Phosphorus, P (％) ≤: 0.012
Sulfur, S (％) ≤: 0.015

Silicon, Si (％): ≤ 0.30

Nickel, Ni (%): ≤ 0.75

Chromium, Cr (%): 1.05 ~ 1.50

Molybdenum, Mo (%): 1.00 ~ 1.50

Vanadium, V (%): 0.20 ~ 0.30

Aluminum, Al (%): ≤ 0.015

MECHANICAL PROPERTIES UNDER ROOM TEMPERATURE
Grade D Class 8

Tensile strength, σb ≥ MPa: 725 ~ 860
Yield strength, σ0.2 ≥ MPa: 585
Elongation, δ5 ≥ (％): 17.0
Reduction of area, ф ≥ (％): 43.0
Impact, AK (J/cm2): 8

MELTING PROCESS

The steel shall be made by the basic electric-furnace (EF + LF + VD ) or Vacuum induction melting (VIM) process. Subsequent secondary melting of the steel by ESR or VAR.

AVAILABLE FORMS / DIMENSIONS
Round bar & disc (diameter): 5.5 mm to 700mm
Square bar / Flat bar: 10mm to 500mm
Steel strip: T0.20 ~ 3mm X W10 ~ 1200mm X Coil
Forging piece: stepped shafts, other different shapes based on OEM.

TECHNICAL SALES ASSISTANCE
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