Product Details:
Payment & Shipping Terms:
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STANDARD: | GB | SHAPE: | ROUND |
---|---|---|---|
MATERIAL: | ALLOY STEEL | PROCESSING: | COLD DRAWN |
TECHNIQUE: | SEAMLESS | PLACE OF ORIGIN: | JIANGSU, CHINA |
SECONDARY OR NOT: | BRAND NEW |
Round Cold Drawn High Pressure 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 |
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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 |
⋮ |
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⋮ |
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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. We always put quality on first consideration makes us keep our qulity stable and good. Always put customer’s benefit before ours makes our good service and gain us good reputation.
Advanced equipments. Sincere , truth and careful attitude on communication and production.