High Pressure Boiler Tube ASTM A213 ASME SA213 T5 Alloy Steel Seamless Tube Heat Exchanger tube Heater Superheater Tube
High Pressure Boiler Tube ASTM A213 ASME SA213 T5 Alloy Steel Seamless Tube Heat Exchanger tube Heater Superheater Tube
YUHONG has been specialized in alloy steel tube for 30 years,alloy tubes used for boiler and heat exchanger is one of our main business.
We've exported boiler tubes and revelant base materials to over 50 countries in the world,has over 500 long-term cooperated partners.
The technical standard we are using for producing alloy boiler seamless tube is ASTM A213, and the steel grade can be T5,T9,T11,T22,T91,etc
Quick details
1. Dimensions
OD: 5-127mm WT: 0.4mm-12.7mm Length: according to the maximum loading length of common containers,usually it wil be 5800mm,6000mm,11800mm,it also can be customized.
2. OD Tolerance for cold drawn/cold rolled quality
| Outter diameter,mm | |
| OD<25.4 | ±0.1 |
| 25.4≤OD<38.1 | ±0.15 |
| 38.1≤OD<50.8 | ±0.2 |
| 50.8≤OD<63.5 | ±0.25 |
| 63.5≤OD<76.2 | ±0.3 |
| 76.2≤OD<101.6 | ±0.38 |
| 101.6≤OD<190.5 | -0.64,+0.38 |
| 190.5≤OD<228.6 | -1.14,+0.38 |
3. Tests
(1)Tension test——One tension test shall be made on a specimen from one tube for lots of not more than 50 tubes. Tension tests shall be made on specimens from two tubes for lots of more than 50 tubes.
(2)Hardness Requirements—— Brinell, Vickers, or Rockwell hardness tests shall be made on specimens from two tubes from each lot.
(3)Flattening Test——One flattening test shall be made on specimens from each end of one finished tube. (4)Flaring Test——One flaring test shall be made on specimens from each end of one finished tube.
(5)Hydrostatic or Nondestructive Electric Test Each tube will be subjected to the nondestructive electric test or the hydrostatic test.
4. Surface Condition
ASTM A213 T5 Ferritic alloy cold-finished steel tubes are free of scale and suitable for inspection.
ASTM A213 T5 Ferritic alloy hot-finished steel tubes are free of loose scale and suitable for inspection.
5. Ends: Plain End, Beveled End
6. Manner of packing: Woven bag,export wooden box
7. Chemical Compositions:
| T5 Tube | T5b Tube | T5c Tube | |
| C, % | 0.15 max | 0.15 max | 0.12 max |
| Mn, % | 0.30-0.60 | 0.30-0.60 | 0.30-0.60 |
| P, % | 0.025 max | 0.025 max | 0.025 max |
| S, % | 0.025 max | 0.025 max | 0.025 max |
| Si, % | 0.50 max | 1.00-2.00 | 0.50 max |
| Cr, % | 4.00-6.00 | 4.00-6.00 | 4.00-6.00 |
| Mo, % | 0.45-0.65 | 0.45-0.65 | 0.45-0.65 |
| Ti,% | - | - | 4*C-0.7 |
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