ASTM A199, ASTM A199 T11, ASTM A199 T22, ASTM A199 T5, boiler tube, heat exchanger tubes
ASTM A199/A199M-92 Specification for Seamless Cold-Drawn Intermediate Alloy-Steel Heat-Exchanger tubes and Condenser Tubes.The ASTM A119 pressure boiler tube is wrapped with nylon fabric then bundled with 2 steel strips in each end, and other 2 in the middle.
Main grade we supply for ASTM A199
- ASTM A199 T11
- ASTM A199 T22
- ASTM A199 T5
Delivery Condition:
- Heat treatment,Annealed, Normalized, Normalized and Tempered
Surface treatment:
- Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting
- Painting as requested.
Chemical analysis of ASTM A199 (%):
| Steel grade | WT | C | Mn | P (max) | S (max) | Si | Cr | Mo |
| ASTM A199/T4 | MW | 0.15MAX | 0.30-0.60 | 0.03 | 0.03 | 0.50-1.00 | 2.15-2.85 | 0.44-0.65 |
| ASTM A199/T5 | MW | 0.50-0.15 | 0.30-0.60 | 0.03 | 0.03 | 0.50MAX | 4.00-6.00 | 0.45-0.65 |
| ASTM A199/T7 | MW | 0.15MAX | 0.30-0.60 | 0.03 | 0.03 | 0.50-1.00 | 6.00-8.00 | 0.45-0.65 |
| ASTM A199/T9 | MW | 0.15MAX | 0.30-0.60 | 0.03 | 0.03 | 0.25-1.00 | 8.00-10.0 | 0.90-1.10 |
| ASTM A199/T11 | MW | 0.50-0.15 | 0.30-0.60 | 0.03 | 0.03 | 0.50-1.00 | 1.00-1.50 | 0.44-0.65 |
| ASTM A199/T22 | MW | 0.50-0.15 | 0.30-0.60 | 0.03 | 0.03 | 0.50MAX | 1.90-2.60 | 0.87-1.13 |
* Ni 0.40 max; V 0.18-0.25; Cb 0.06-0.10; N 0.03-0.07; Al 0.04 max
Mechnical Properties of ASTM A199:
| Steel grade | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation (%) | SPECIFIC REQUIREMENT |
| ASTM A199/T4 | 415MIN | 170MIN | 30/22 | Hardness 85 HRB MAX |
| ASTM A199/T5 | 415MIN | 170MIN | 30/22 | Hardness 85 HRB MAX |
| ASTM A199/T7 | 415MIN | 170MIN | 30/22 | Hardness 85 HRB MAX |
| ASTM A199/T9 | 415MIN | 170MIN | 30/22 | Hardness 85 HRB MAX |
| ASTM A199/T11 | 415MIN | 170MIN | 30/22 | Hardness 85 HRB MAX |
| ASTM A199/T22 | 415MIN | 170MIN | 30/22 | Hardness 85 HRB MAX |
