Good quality GB/T5310 Seamless steel tubes and pipes for high pressure boiler 20G 20MnG
b&g u tube heat exchanger
Size Range:
OD:6-127mm
WT:0.5-12mm
Kg/m: (OD-WT)*WT*0.02466
Grade:
10# 20# 20G 20MnG
Chemical composition
| Steel grade | C max | Si | Mn | Pmax | S max |
| 10# | 0.17-0.13 | 0.17-0.37 | 0.35-0.65 | 0.035 | 0.035 |
| 20# | 0.17-0.23 | 0.17-0.37 | 0.35-0.65 | 0.035 | 0.035 |
| 20G | 0.17-0.23 | 0.17-0.37 | 0.35-0.65 | 0.025 | 0.015 |
| 20MnG | 0.17-0.23 | 0.17-0.37 | 0.7-1.00 | 0.025 | 0.015 |
Acknowledge:
SA-213 This specification covers minimum-wall-thickness, seamless ferritic and austenitic steel, boiler and superheater tubes and austenitic steel heat-exchanger tubes, designated Grades T5, TP304, etc. These steels are listed in the specification (Tables 1-3).
180 Degree U 304 Stainless Steel Pipe
Gauge-Inch-mm Gauge 12 14 15 16
QUALITY CONTROL
1~ Incoming Raw Material Inspection
2~ Raw Material Segregation to avoid steel grade mix-up
3~ Heating and Hammering End for Cold Drawing
4~ Cold Drawing and Cold Rolling, on line inspection
5~ Heat Treatment, +A, +SRA, +LC, +N, Q+T
6~ Straightening-Cutting to specified length-Finished Measuring Inspection
7~ Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8~ Packing and Stocking.
Q: Are you trading company or manufacturer ?
A: A professional steel pipes materials inventor, manufacturer and solution provider
Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 30-60 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample of GB/T5310 Seamless steel tubes and pipes for high pressure boiler 20G 20MnG for free charge but need pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact us
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