ASTM A192 Seamless Carbon Steel Boiler Tubes for High Pressure Boilers
Material: Carbon Steel
Production: Tubes are manufactured by seamless process and both hot finished and cold finished are applicable.
Size range: O.D.: 12.7-177.8mm W.T.: 1-25.4mm L: according to customer requirement
Applications:
for Boilers,Superheaters,
Heat-Exchangers,
High-pressure Boilers,
Steam Boilers
Cold Condensers and High-Pressure Services,
High-Temperature Services for Boiler Constructions
Heat treatment:
Hot finished tubes need not be heat treated.
Cold Finished tubes are heat treated after the final cold finishing pass at a temperature of 1200℉(650℃) or higher
Steel Grade and Chemical Compositions:
| C | 0.06-0.18 |
| Mn | 0.27-0.63 |
| P | ≤0.035 |
| S | ≤0.035 |
| Si | ≤0.25 |
Mechanical Properties
Tensil Streghth: min ksi[Mpa] 47[325]
Yield Point: min ksi[Mpa] 26[180]
Elongation: ≥35%
Hardness
| Brinell Hardness | Rockwell Hardness Number |
| WT≥0.200in(5.1mm) | WT＜0.200in(5.1mm) |
| 137HRB | 77HRB |
Tests and Inspection:
Mechanical Testing:
Flattening Test
Flaring Test
Flange Test
Hardness Test
Hydrostatic Test
| Steel Grade and Chemical Compositions: |
| Element | Grade A,
Low-Carbon Steel | Grade C,
Medium-Carbon Steel | Grade D,
Carbon-Manganese
Steel | |
| Carbon | 0.06-0.18 | 0.35 max | 0.27 max | |
| Manganese | 0.27-0.63 | 0.80 max | 1.00-1.50 | |
| Phosphorus, max | 0.035 | 0.035 | 0.030 | |
| Sulfur, max | 0.035 | 0.035 | 0.015 | |
| Silicon | - | - | 0.10 min | |
| Mechanical Properties | Grade A | Grade C | Grade D |
| Tensile Strength: min ksi[Mpa] | 47[325] | 60[415] | 70[485] |
| Yield Point: min ksi[Mpa] | 26[180] | 37[255] | 40[275] |
| Elongation: | ≥35% | ≥30% | ≥30% |
| Tolerance for OD and WT(SA-450/SA-450M) |
| OD in(mm) | + | - | WT in(mm) | + | - |
| ＜1''(25.4) | 0.10 | 0.10 | ≤1.1/2''(38.1) | 20% | 0 |
| 1''～1.1''(25.4～38.1) | 0.15 | 0.15 | ＞1.1/2''(38.2) | 22% | 0 |
| ＞1.1/2''～＜2''(38.1～50.8 | 0.20 | 0.20 | | | |
| 2''～＜2.1/2''(50.8～63.5) | 0.25 | 0.25 | | | |
| 2.1/2''～＜3''(63.5～76.2) | 0.30 | 0.30 | | | |
| 3''～＜4''(76.2～101.6) | 0.38 | 0.38 | | | |
| 4''～＜7.1/2''(101.6～190.5) | 0.38 | 0.64 | | | |
| ＞7.1/2～9''(190.5～228.6) | 0.38 | 1.14 | | | |
1. A.W.H.R. "as welded" from hot-rolled steel
Deliver condition:
2. A.W.C.R. "as welded" from cold-rolled steel
3. S.D.C.R. "sink-drawn", cold-rolled steel
6. S.S.I.D. special smooth inside diameter
Please specify the delivery condition and heat treatment requirement when sending the enquiry
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
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Round Shape Seamless Steel Tube Length 1 - 12m For High Pressure Boilers Images
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