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A470 Grade B Class 3
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Specification ASTM A470 Grade 3 Datasheet, Inventory A470 Class 3 Chemical, A470 Grade B properties from Steelmaking, ESR melted, Blooming, Hot forging

TECHNICAL SPECIFICATION - ASTM A470 Grade B Class 3

TECHNICAL SPECIFICATION - ASTM A470 - 2015

OFFICIAL TEST CERTIFICATE - issued by TUV - SGS

MATERIAL TYPE - Ni - Mo - V steel
CHEMICAL COMPOSITION (mass weight % )
Carbon, C (％): 0.22 ~ 0.30
Manganese, Mn (％): 0.20 ~ 0.60
Phosphorus, P (％) ≤: 0.012
Sulfur, S (％) ≤: 0.012

Silicon, Si (％): ≤ 0.30

Nickel, Ni (%): 3.20 ~ 3.70

Chromium, Cr (%): ≤ 0.75

Molybdenum, Mo (%): 0.40 ~ 0.60

Vanandium, V (%): 0.04 ~ 0.12

Aluminum, Al (%): ≤ 0.015

MECHANICAL PROPERTIES UNDER ROOM TEMPERATURE
Grade B Class 3

Tensile strength,σb/≥ MPa: 620
Yield strength, σ0.2/≥ MPa: 480
Elongation, δ ≥(％): 20.0
Reduction of area, ф ≥ (％): 48.0
Impact, AK (J/cm2): 34

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 AND DIMENSIONS
Round bar & Disc (diameter): 5.5 mm to 500mm
Square bar / Flat bar: 3mm to 500mm
Steel strip: T0.20 ~ 3mm X W10 ~ 2000mm X Coil
Forging piece: stepped shafts, other different shapes based on OEM.

TECHNICAL SALES ASSISTANCE
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