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Multi - Rifled Seamless Steel Tubes for High Pressure Boiler GB/T 20409

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Multi - Rifled Seamless Steel Tubes for High Pressure Boiler GB/T 20409

Name: Multi Rifled Seamless Steel Tubes for High Pressure Boiler GBT 20409
Brand: TORICH
Price: 1 USD

Wholesale Multi - Rifled Seamless Steel Tubes for High Pressure Boiler GB/T 20409 from china suppliers

Brand Name : TORICH

Model Number : GB/T 20409

Certification : ISO 9001 ISO 14001 TS 16949

Place of Origin : China

MOQ : 5 Ton

Price : negotiable

Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram

Supply Ability : 40000 Ton/Year

Delivery Time : 45 days

Packaging Details : Packing in wooden box，hexagonal bundles or other seaworthy ways.

Product Name : GB/T 20409 Multi-Rifled Seamless Steel Tubes for High-Pressure Boiler

Material : 20G , 20MnG , 25MnG , 12CrMoG , 15CrMoG

Surface : Oiled

Application : High-pressure boiler

Shape : Round

OD : 4-1200mm

WT : 0.3-200mm

Length : 8-12m

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GB/T 20409 Multi-Rifled Seamless Steel Tubes for High-Pressure Boiler

Spec:
Material:20G , 20MnG , 25MnG , 12CrMoG , 15CrMoG
Size Range:OD:4-1200mm
WT:0.3-200mm
General Length:8-12m
Tolerance:
According to the following tables or customers’ request.

Longitudinal mechanical properties of internal screw tubes at room temperature

Number	Grade	tensile strength / MPa(N/)	Lower yield strength /MPa((N/)	Elongation A/%	Impact energy /J
Number	Grade	tensile strength / MPa(N/)	Not less than
1	20G	410~550	245	24	35
2	20MnG	≥415	240	22	35
3	25MnG	≥485	275	20	35
4	12CrMoG	410~560	205	21	35
5	15CrMoG	440~640	235	21	35

The grade and chemical composition of steel

Number	Brand	chemical composition(mass fraction)/ %
Number	Brand	C	Mn	Si	Cr	Mo	S	P
1	20G	0.17~0.23	0.35~0.65	0.17~0.37	--	--	≤0.020	≤0.025
2	20MnG	0.17~0.23	0.70~1.00	0.17~0.37	--	--	≤0.020	≤0.025
3	25MnG	0.22~0.29	0.7~1.00	0.17~0.37	--	--	≤0.020	≤0.025
4	12CrMoG	0.08~0.15	0.40~0.70	0.17~0.37	0.40~0.70	0.40~0.55	≤0.020	≤0.025
5	15CrMoG	0.12~0.18	0.40~0.70	0.17~0.37	0.80~1.10	0.40~0.55	≤0.020	≤0.025
Note1:Residual element content of 20G,20MnG,25MnG should satisfy: Cu≤0.20%,Cr≤0.25%,Ni≤0.25%,V≤0.08%,Mo≤0.15%；The remaining elements of other brands should satisfy: Cu≤0.20%,Ni≤0.30%. Note2:The acid soluble aluminum in 20G steel should not be more than 0.010%. Note3:The nitrogen content of the steel produced by the oxygen converter plus the refining of the furnace should not be more than 0.008%.

Characteristic:

TORICH QUALITY ASSURANCE

Good surface quality

Good OD and ID tolerance controlled to Technical Standard
Stable quality
100% Eddy Current Test

Processing:Cold drawning

Technical Delivery Conditions:Heat treatment

Widely used in the field of:High-pressure boiler

Product Tags:

seamless steel pipe

seamless carbon steel tube

Multi - Rifled Seamless Steel Tubes for High Pressure Boiler GB/T 20409 Images

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