Custom High Temperature Seamless Carbon Steel Pipe With ASTM A106 GrB
Custom high temperature Seamless Carbon Structural Steel Pipe With ASTM A106 GrB
Size range: O.D.:6-711mm W.T.:1-15mm L:max12000mm
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
Technical Delivery Conditions:
The steel tube shall be supplied in the heat treated conditions as per the heat treatment conditions desicrebed the table given below. The heat treatmet conditions shall be indicated in the quality certification.
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.
FAQ
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, and it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but you need to 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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