Custom High Temperature Seamless Carbon Steel Pipe With ASTM A106 GrB
Steel Grade and Chemical Compositions:
| Steel Grade | C | Mn | P | S | Si | Cr | Cu | Mo | Ni | V |
| max | | max | max | min | max | max | max | max | max |
| A | 0.25 | 0.27~0.93 | 0.035 | 0.035 | 0.10 | 0.40 | 0.40 | 0.15 | 0.40 | 0.08 |
| B | 0.30 | 0.27~1.06 | 0.035 | 0.035 | 0.10 | 0.40 | 0.40 | 0.15 | 0.40 | 0.08 |
| C | 0.35 | 0.27~1.06 | 0.035 | 0.035 | 0.10 | 0.40 | 0.40 | 0.15 | 0.40 | 0.08 |
Mechanical Properties:
| Grade | Tensil Strength Mpa | Yield Point Mpa | Elongtation % |
| A | ≥330 | ≥205 | 20 |
| B | ≥415 | ≥240 | 20 |
| C | ≥485 | ≥275 | 20 |
Applications: for high temperature service
Tolerance:
According to the following tables or customers` request.
| Producing method | Size | Tolerance |
| General | High grade |
| Hot rolling (extrude) | D | <54 | ±0.40 | ±0.30 |
| >54~325 | S≤35 | ±0.75% | ±0.5% |
| S>35 | ±1% | ±0.75% |
| >325 | ±1% | ±0.75% |
| S | ≤4.0 | ±0.45 | ±0.35 |
| >4.0~20 | ±12.5%-10% | ±10% |
| >20 | D<219 | ±10% | ±7.5% |
| D≥219 | ±12.5%-10% | ±10% |
| Hot expand | D | complete | ±1% | ±0.75% |
| S | +20%-10% | +15%-10% |
| Cold drawn(rolling) | D | ≤25.4 | ±0.15 | _ |
| >25.4~40 | ±0.20 | _ |
| >40~50 | ±0.25 | _ |
| >50~60 | ±0.30 | _ |
| >60 | ±0.5% | _ |
| S | ≤3.0 | ±0.3 | ±0.2 |
| >3.0 | ±10% | ±7.5% |
Characteristic:
High Creep Rupture Strength
High antioxidant properties
Good organizational stability
Good concentricity
Good OD and ID tolerance
High Precision
Stable quality
Smooth Roughness
TORICH QUALITY ASSURANCE
Processing:
RAW MATERIAL
↓
INCOMING INSPECTION
↓
STORAGE → CUTTING→HAMMERING → PICKING LUBRICATION → CLEANING → PHOSPHORI CLEAN
↓
ENDS CUTTING←STRAIGHTENING←HEAT TREATMENT↔MIDDLLE CHECK↔ COLD DRAWING ← LUBRICATING
↓
FINAL INSPECTION→BUNDING→STORAGE
Widely used in the field of:High pressure boiler
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.
100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects.
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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 of Seamless steel tube ? is it free or extra ?
A: Yes, we could offer the sample 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
Custom High Temperature Seamless Carbon Steel Pipe With ASTM A106 GrB
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