hemos obtenido ISO 9001, ISO 14001, ISO 45001, CE, certificación de calificación crediticia de nivel AAA, etc.
AS1074 Standard Specification for Steel tubes for mechanical purposes. This Standard specifies requirements for the production and supply of carbon and carbon-manganese steel tubes of round, square, rectangular or other non-circular cross-section produced by either cold-forming or hot-forming, and intended for use in mechanical applications.
Chemical Composition
|
Grade |
Type of analisis |
C |
Si |
Mn |
P |
S |
Carbon |
|
C200 abd H200 |
cast |
0.15 |
|
|
0.05 |
0.05 |
0.29 |
|
product |
0.19 |
|
|
0.06 |
0.06 |
|
|
|
C250 and H250 |
cast |
0.25 |
0.40 |
|
0.04 |
0.04 |
0.44 |
|
product |
0.29 |
0.45 |
|
0.05 |
0.05 |
|
|
|
C350 and H350 |
cast |
0.22 |
0.50 |
1.60 |
0.04 |
0.04 |
0.49 |
|
product |
0.26 |
0.55 |
1.70 |
0.05 |
0.05 |
|
|
|
C450 |
cast |
0.25 |
0.40 |
|
0.04 |
0.04 |
0.44 |
|
product |
0.29 |
0.45 |
|
0.05 |
0.05 |
|
Mechanical Properties
|
Grade |
Minimum
yield |
Minimum
tensile |
Minimum
elongation as a proportion of |
|
|
Circular tube |
Non-circular tube |
|||
|
C200 abd H200 |
200 |
320 |
24 |
20 |
|
C250 and H250 |
250 |
350 |
22 |
18 |
|
C350 and H350 |
350 |
450 |
20 |
16 |
|
C450 |
450 |
500 |
|
|
