中文版
Home Material DIN 17672-1-1983
简体 | 繁體
Grade CuZn31Si1
Germany W-Nr. 2.0490
Old Grade
Corresponding Standard DIN 17672-1-1983
Wrought copper and copper alloys bars；Properties.
Classification Copper and Copper Alloys
Density 8.4 g/cm3
CuZn31Si1 Chemical Element Composition Content (%)
Component Fe Si Ni Cu Pb Other Total More
Minimum Value - 0.7 - 66 - - Zn:余量
Maximum Value 0.4 1.3 0.5 70 0.8 0.5
"Other individual elements or other totals": The chemical composition includes elements not specified in the table. Analysis should only be conducted if these elements are suspected to be present, or if routine analysis suggests that their content may exceed the prescribed limits.
CuZn31Si1 Mechanical Properties
diameter/thickness
d
mm		 Mark
Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Hardness
HBW
Round, Square, Hexagonal Bars, Flats; Specifications as per agreement 2.0490.08 Extrusion or Hot Forging P (.08) No specification No specification No specification No specification
Round material; 6 ≤ d < 50 2.0490.27 Semi-Hard + Stress Relief F44 (.27) ≥440 ≥200 ≥22(A5) ≈120
Square material, hexagonal material; 5 ≤ d < 46 2.0490.27 Semi-Hard + Stress Relief F44 (.27) ≥440 ≥200 ≥22(A5) ≈120
Flat material; 5≤d＜20 2.0490.27 Semi-Hard + Stress Relief F44 (.27) ≥440 ≥200 ≥22(A5) ≈120
Round Material; 6≤d＜25 2.0490.31 Hard + Stress Relief F49 (.31) ≥490 ≥290 ≥15(A5) ≈150
Square, Hexagonal Material; 5≤d＜22 2.0490.31 Hard + Stress Relief F49 (.31) ≥490 ≥290 ≥15(A5) ≈150
Flat material; 5≤d＜12 2.0490.31 Hard + Stress Relief F49 (.31) ≥490 ≥290 ≥15(A5) ≈150
Approximate Comparison Table Cupper and cupper alloy
Germany European Standard
DIN EN/DIN W-Nr. EN Numerical Grade
CuZn31Si1 2.0490 CuZn31Si1 CW708R
CuZn31Si1 Corresponding Standards(Same grade name, different standards)
1 EN 12163-1998
CuZn31Si1 CW708R
2 DIN 17672-1-1983
CuZn31Si1 2.0490 (CuZn31Si) (SoMs68)
3 DIN EN 12163-1998
CuZn31Si1 CW708R (2.0490)
4 DIN EN 12163-2016
CuZn31Si1 CW708R
5 DIN 17671-1-1983
CuZn31Si1 2.0490 (CuZn31Si) (SoMs68)
6 DIN 17660-1983
CuZn31Si1 2.0490 (CuZn31Si) (SoMs68)
7 EN 12163-2016
CuZn31Si1 CW708R
8 DIN EN 12449-2019
CuZn31Si1 CW708R
9 EN 12449-2023
CuZn31Si1 CW708R

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!