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A470 Grade C Class 7
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ASTM A470 - 2015 Specification ASTM A470 Grade C Round bar, flat bar, forgings ASTM A470 type C ESR melted, A470 Hot forging / rolling, Heat treated

TECHNICAL DATA SHEET - ASTM A470 type C Class 7

TECHNICAL SPECIFICATION - ASTM A470 - 2015

OFFICIAL TEST CERTIFICATE - issued by TUV - SGS

MATERIAL TYPE - Ni - Cr - Mo - V steel
CHEMICAL COMPOSITIONS (mass weight - %)
Carbon, C (％): ≤ 0.28
Manganese, Mn (％): 0.20 ~ 0.60
Phosphorus, P (％) ≤: 0.012
Sulfur, S (％) ≤: 0.012

Silicon, Si (％): ≤ 0.30

Nickel, Ni (%): 3.25 ~ 4.00

Chromium, Cr (%): 1.25 ~ 2.00

Molybdenum, Mo (%): 0.25 ~ 0.60

Vanadium, V (%): 0.05 ~ 0.15

Aluminum, Al (%): ≤ 0.015

MECHANICAL PROPERTIES UNDER ROOM TEMPERATURE
Grade C Class 7

Tensile strength, Rm ≥ MPa: 825 ~ 930
Yield strength, Rp0.2 ≥ MPa: 655
Elongation, A5 ≥ (％): 17.0
Reduction of area, Z ≥ (％): 52.0
Impact, AK v (J/cm2): 54

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 DIMENSIONS AND DIMENSIONS
Round bar / rod / disc (diameter): 5.5 ~ 850mm
Square bar / flat bar: 6 ~ 600mm
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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