GB3087：Seamless steel pipe for low and medium pressure boiler
GB9948：Seamless steel pipe for petroleum cracking
GB6479：Seamless steel pipes for high-pressure fertilizer equipment
GB/T17396：Hot rolled seamless steel pipe for hydraulic prop
20# steel belongs to high-quality low-carbon carbon steel, cold-extruded and hardened steel. The steel has low strength, good toughness, plasticity and weldability. It belongs to high-quality low-carbon carbon steel, cold-extruded and hardened steel. The steel has low strength, good toughness, plasticity and weldability. It is generally used to manufacture seamless pipes with low stress and high toughness requirements.
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Grade |
Size Range |
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|
|
OD |
WT |
|||||||||||||
|
20# |
21～1200 |
3～130 |
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|
Grade |
Chemical Component % |
||||||||||||||
|
|
C |
Si |
Mn |
Cr |
Mo |
V |
Ti |
B |
Ni |
Cu |
Nb |
N |
W |
P |
S |
|
20# |
0.17- |
0.17- |
0.35- |
≤ |
— |
— |
— |
— |
≤ |
≤ |
— |
— |
— |
≤ |
≤ |
|
Grade |
Mechanical Property |
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|
|
Tensile Strength(MPa) |
Tensile Strength(Mpa) |
Elogation(L/T) |
Impact(J) Vertical/Horizontal |
Hardness(NB) |
||||||||||
|
20# |
410- |
≥ |
≥20% |
≥40/27 |
— |
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1. Delivery period: Large inventory make sure minimum delivery period, mainly 5-7 days.
2. Cost management: Resources at hand and vast experience of cost management let us can provide most suitable resource combination base on customer's needs
3. Top mill resource: Can provide full set certificate and qualification documents to prove high quality and provide support to tender.
4. Strict QC system: Whole flow onsite inspection, fully test and report, third-party inspection
5. After service: all products traceable, Tracing the source of liability