| |
|
| ASTM A199 steel tubes,T5, T11, T12, T22, T91 |
ASTM-A 199 (94) Alloy Steel Tubes for Heat exchanger and Boilers
Chemical composition and mechanical properties
Manufacturing Process Seamless Chemical Requirements
| Element |
C |
Mn |
P |
S |
Si |
Cr |
Mo |
Others |
| Grade |
|
|
|
|
|
|
|
|
| T4 |
0.05 - 0.15 |
0.30-0.60 |
0.025 |
0.025 |
0.50-1.00 |
2.15-2.85 |
0.44-0.65 |
... |
| T5 |
0.15max |
0.30-0.60 |
0.025 |
0.025 |
0.50max |
4.00-6.00 |
0.45-0.65 |
... |
| T9 |
0.15max |
0.30-0.60 |
0.025 |
0.025 |
0.25-1.00 |
8.00-10.00 |
0.90-1.10 |
... |
| T11 |
0.05 - 0.15 |
0.30-0.60 |
0.025 |
0.025 |
0.50-1.00 |
1.00-1.50 |
0.44-0.65 |
... |
| T12 |
0.05 - 0.15 |
0.30-0.60 |
0.025 |
0.025 |
0.50max |
2.65-3.35 |
0.80-1.06 |
... |
| T22 |
0.05 - 0.15 |
0.30-0.60 |
0.025 |
0.025 |
0.50max |
1.90-2.60 |
0.87-1.13 |
... |
| T91 |
0.08 - 0.12 |
0.30-0.60 |
0.020 |
0.010 |
0.20-0.50 |
8.00-9.50 |
0.85-1.05 |
* |
* Ni 0.40 max; V 0.18-0.25; Cb 0.06-0.10; N 0.03-0.07; Al 0.04 max
| |
Tensile Strength,min |
Yield Strength,min |
Elongation |
| |
|
(0.2% offset),min, |
in 2 in. or 50 mm, |
| Grade |
KSI (MPa) |
KSI (MPa) |
(or 4D),min, ;% |
| All Grades |
|
|
|
| Except T91 |
60 [415] |
25 [170] |
30 |
| Grade T91 |
85 [585] |
60 [415] |
20 |
|
|
|
| Contact Us >> |
Phone: 
Fax: +86-510-68930106
E-mail: info@magvant.com
Technical communication
tech@magvant.com
www.magvant.com |
|
