Chinese
Available 24/7 at sales@steel-grades.com
SGSG
Post Your Request Now
Toggle menu

O7

Favorite Datasheet
T31506 T31507
#O7

Description

USA ASTM O7 Alloy tool steel and O7 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: O7
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy O7 ASTM USA Alloy tool steel
D5
T30405
D7
T30407
O1
T31501
O2
T31502
O6
T31506

Chemical composition(mass fraction)(wt.%) of the O7

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Mo(％) V(%) W(%)
1.10～1.30 0.10～0.60 0.20～1.00 ≤0.030 ≤0.030 0.35～0.85 ≤0.30 0.15～0.40 1.00～2.00

Mechanical Properties of steel grade O7

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
195 (≥) 182 (≥) 14 31 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 241

Physical Properties of steel grade O7

Temperature
(°C)		 Modulus of elasticity
(GPa)		 Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)		 Specific thermal capacity
(J/kg·°C)		 Specific electrical resistivity
(Ω mm²/m)		 Density
(kg/dm³)		 Poisson’s coefficient, ν
41 - -     0.13 -  
251 225 - 23.3 111   -  
157 - 14 24.2   121 434

Heat Treatment of steel grade O7

Heat treated : 1762°C - 1491°C

Technological Curves of steel grade O7

Cross Reference Table (Equivalent Grade) of O7

Grade Standard Country Application
O7 ASTM USA Alloy tool steel
40CrMnMo7 DIN Germany Cold working alloy tool steel
35CrMnMo7 AFNOR France Carbide for cutting tools
35CrMnMo7 AFNOR France Carbide for cutting tools
GS-8MnMo74 DIN Germany
GS-33NiCrMo7 4 4 DIN Germany
18CrNiMo7-6 UNE Spain Spain structural alloy steel
40CrMnMo7 UNE Spain Spain structural alloy steel
EN 18CrN1Mo7-6 EN Euronorm Euronorm Structural steel
EN 31CrAlMo7-10 EN Euronorm Euronorm Structural steel
EN 41CrAlMo7 EN Euronorm Euronorm Structural steel
EN 35CrMo7 EN Euronorm Euronorm Tool steel
EN 20NiCrMo7F EN Euronorm Euronorm Tool steel
EN 100CrMnMo7 EN Euronorm Euronorm Tool steel
EN 100CrMo7 EN Euronorm Euronorm Tool steel
EN 41NiCrMo7-3-2 EN Euronorm Euronorm Stainless Steel
T31506 T31507
Available Suppliers
Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

Rfq.: sales@longhaisteel.com
  • Do you supply this O7?
  • List your company on S&G now? Join
  • Non-paying users only
Top