Brand Name: | TORICH |
Model Number: | GB/T 28413 |
MOQ: | 5 tons |
Price: | 800-1500 USD/Ton |
Payment Terms: | T/T, L/C, D/A, D/P, Western Union, MoneyGram |
Supply Ability: | 50000 Tons/ Year |
GB/T 28413 SA178 Welded Carbon Steel Pipes For Boiler and heat exchangers
Chinese Technical Standard GB/T 28413 Welded Carbon Steel Pipes For Boiler and Heat Exchangers
Steel Grade/Steel Material/Steel Number:
10# 20# Q245R Q345R Q370R
Size Range:
OD: 6-127mm
Min WT:0.9-9.1mm
Length:4-12m,as customer’s requirement
Mechanical Properties:
Grade | Lower yield strength Rel/N/mm² No less than | Tensile strength R. /N/mm² No less than | Extensibility after fracture A/% No less than | ||||
T≤16 | 16<T≤36 | 36<T≤60 | T≤16 | 16<T≤36 | 36<T≤60 | ||
10 | 205 | 335-475 | 28 | ||||
20 | 245 | 410-550 | 24 | ||||
Q245R | 245 | 235 | 225 | 400-520 | 25 | ||
Q345R | 345 | 325 | 315 | 510-640 | 500-630 | 490-620 | 21 |
Q370R | 370 | 360 | 340 | 530-630 | 520-620 | 20 |
Manufacturing process:
HFW High frequency welded
EFW (SAW SMAW GMAW FCAW ESW)
Delivery Terms:
Annealed
Seam online normalizing.
Inspection in the work ship:
Size Measurement
NDT inspection: by eddy current test ultrasonic test
Mechanical test.
Application:
For Boiler and heat exchangers