Description

Tensile test for metallic materials Part 1

Test method at room temperature

Determination of offset yield stresses, apparent yielding points, tensile strength, breaking force including the pertinent extensions and the E module as well as reduction in area when breaking in the tensile test to DIN EN ISO 6892-1.

Test control is possible with 2 different methods.

• Method A - Elongation controlled, controlled via signal of extensometer
• Method B - Load controlled (stress controlled)

Basic Results

• mE: Tensile modulus
• Rpx1: Yield strength at non-proportional strain Ax1
• Rpx3: Yield strength at non-proportional strain Ax4
• Fpx1: Load at non-proportional strain Ax1
• Fpx4: Load at non-proportional strain Ax4
• Rtz: Stress at total elongation Az

• Ftz: Load at total elongation Az
• ReH: Upper yield strength
• ReL: Lower yield strength
• Rm: Tensile strength (tensile stress at maximum test load )
• Fm: Maximum test load
• Fb: Breaking load
• Ae: Apparent yielding point extension
• Ag: Non-proportional extension at maximum force
• A: Breaking extension
• Agt: Overall extension at maximum force
• At: Overall extension at sample break
• Z: Reduction in area when breaking
• FeH: Load at upper yield strength
• FeL: Load at lower yield strength
• Rp0.0: Yield strength at initial-proportional strain
• Fp0.0: Load at initial-proportional strain
• Re/ReH: Yield strength ratio
• Rm/RP0.2: Yield strength ratio
• r: r-value indicates the vertical anisotropy 
• n: n-value indicates material work hardening under plastic deformation
• etc.