GB/T3087 Q235 Carbon Seamless Steel Pipe For Low And Medium Pressure Boiler
Steel Grade/Steel Material:Q345 Q195 10# 20#
Steel pipe standard:GB/T3087
Characteristic:
Good concentricity
Good OD and ID tolerance
High Precision
Stable quality
Smooth Roughness
TORICH QUALITY ASSURANCE
Size Range:
OD:4-1200mm
WT:0.5-200mm
Length: 5.8m, 6m, 11.8m, 12m, or as required.
Production Processs:
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
| Application: | Boiler | Heat Exchanger | Petroleum | Aerospace | Chemical | Electric Power | Military | structure |
Production Technique:
1) Hot Rolled
2) Cold Drawn
3) Cold Rolled
Order content:
1.Standard Encdoing
2.Product Name
3.Steel Grades
4.Order Quantity
5.Delivery Condition
6.Specification
7.Special Requirements
Steel pipe testing items, the number of samples, sampling methods, experimental methods
For the Purpose of:
For high-pressure boiler (working pressure 9.8MPa or more generally, the working temperature between 450 ℃ ~ 650 ℃) of heating surface tubes, header, economizer, superheater, reheater and so on.
The main production steel grades:
20G, 20MnG, 15MoG, 15CrMoG, 12Cr2MoG, 12Cr1MoVG.
After consultation, can also supply other grades of steel.
Mechanical properties:
| Standard | Trademark | Tensile strength(MPa) | Yield strength(MPa) | Elongation(%) |
| GB5310 | 20G | 410~550 | ≥245 | ≥24 |
| 20MnG | ≥415 | ≥240 | ≥22 |
| 15MoG | 450~600 | ≥270 | ≥22 |
| 15CrMoG | 440~640 | ≥235 | ≥21 |
| 12Cr2MoG | 450~600 | ≥280 | ≥20 |
| 12Cr1MoVG | 470~640 | ≥255 | ≥21 |
Chemical composition:
| Standard | Trademark | Chemical Composition |
| C | Si | Mn | P | S | Cr | Mo | Cu | Ni | V |
| GB5310 | 20G | 0.17~0.24 | 0.17~0.37 | 0.35~0.65 | ≤0.030 | ≤0.030 | / | / | ≤0.20 | ≤0.25 | / |
| 20MnG | 0.17~0.24 | 0.17~0.37 | 0.70~1.00 | ≤0.030 | ≤0.030 | / | / | ≤0.20 | ≤0.25 | / |
| 15MoG | 0.12~0.18 | 0.17~0.37 | 0.40~0.80 | ≤0.030 | ≤0.030 | / | 0.25~0.35 | ≤0.20 | ≤0.30 | / |
| 15CrMoG | 0.12~0.18 | 0.17~0.37 | 0.40~0.70 | ≤0.030 | ≤0.030 | 0.80~1.10 | 0.40~0.55 | ≤0.20 | ≤0.30 | / |
| 12Cr2MoG | 0.08~0.15 | ≤0.50 | 0.40~0.70 | ≤0.030 | ≤0.030 | 2.00~2.50 | 0.90~1.20 | ≤0.20 | ≤0.30 | / |
| 12Cr1MoVG | 0.08~0.15 | 0.17~0.37 | 0.40~0.70 | ≤0.030 | ≤0.030 | 0.90~1.20 | 0.25~0.35 | ≤0.20 | ≤0.30 | 0.15~0.35 |
Product Tags:
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GB/T3087 Q235 Carbon Seamless Steel Pipe For Low And Medium Pressure Boiler Images
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