Product Details:
Payment & Shipping Terms:
|
STANDARD: | GB | SHAPE: | ROUND |
---|---|---|---|
MATERIAL: | ALLOY STEEL | PROCESSING: | COLD DRAWN |
TECHNIQUE: | SEAMLESS | PLACE OF ORIGIN: | JIANGSU, CHINA |
SECONDARY OR NOT: | BRAND NEW |
High Pressure Seamless Steel Pipe GB 5310 Black Alloy Steel Seamless Tubes
Specifications:
Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling
Ends: BE/PE, ends caps
Marking: as per requirement
Size:(mm)
As per standard or as per customer’s requirement
Length: ≤16m. Fixed Length (6m,9m,12m, 16m or as per requirement) or random length
Package: Hexagonal Bundles with steel strips and plastic wrapping outside/Wooden box/Wooden crate/Steel frame/As per customer’s requirement
CHEMICAL COMPOSITION (%):
Grade |
Chemical Composition |
||||||
C |
Si |
Mn |
P |
S |
Cr |
Mo |
|
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 |
0.70 ~1.00 |
≤0.025 |
≤0.015 |
− |
− |
25MnG |
0.22 ~0.27 |
0.17 ~0.37 |
0.70 ~1.00 |
≤0.025 |
≤0.015 |
− |
− |
15MoG |
0.12 ~0.20 |
0.17 ~0.37 |
0.40 ~0.80 |
≤0.025 |
≤0.015 |
− |
0.25~0.35 |
20MoG |
0.15 ~0.25 |
0.17 ~0.37 |
0.40 ~0.80 |
≤0.025 |
≤0.015 |
− |
0.44~0.65 |
12CrMoG |
0.08 ~0.15 |
0.17 ~0.37 |
0.40 ~0.70 |
≤0.025 |
≤0.015 |
0.40~0.70 |
0.40~0.55 |
⋮ |
⋮ |
⋮ |
⋮ |
⋮ |
⋮ |
⋮ |
⋮ |
MECHNICAL PROPERTIES (Minimum Values) :
Grade |
Tensile Strength (MPa) |
Yield Strength(MPa) |
Elongation(%) |
20G |
410~550 |
≥245 |
≥24 |
20MnG |
415~560 |
≥240 |
≥22 |
25MnG |
485~640 |
≥275 |
≥20 |
15MoG |
450~600 |
≥270 |
≥22 |
20MoG |
415~665 |
≥220 |
≥22 |
12CrMoG |
410~560 |
≥205 |
≥21 |
⋮ |
⋮ |
⋮ |
⋮ |
DIMENSION TOLERANCE:
Processing |
Pipe Sizes (mm) |
Tolerances |
||
Cold Drawn |
OD |
≤25.4 |
±0.15 |
|
>25.4~40 |
±0.20 |
|||
>40~50 |
±0.25 |
|||
>50~60 |
±0.30 |
|||
>60 |
±0.5% D |
|||
WT |
≤3.0 |
±0.3 |
||
>3.0 |
±10% S |
INSPECTION AND TEST:
CHEMICAL COMPOSTION TEST. MECHANICAL PROPERTIES TEST(tensile strength, yield strength, elongation, flaring, flattening, hardness, etc). SURFACE AND DIMENSION CHECK. NON-DESTRUCTIVE TEST(eddy current test/ultrasonic test), HYDRAULIC TEST.
Description:
GB 5310 SEAMLESS HIGH PRESSURE TUBE FOR BOILER used for high pressure service. High pressure boiler, pressure equipment, superheater, pipeline, preheating tubes, etc.
Top quality products
Applications:
Mainly used for high pressure service. High pressure boiler, pressure equipment, pipe line, superheater, preheating tubes, etc.
Competitive Advantage:
GB 5310 is one of our most popular products. Advanced equipments. Strict quality control, best price and service!