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37Mn 34Mn2V 30CrMo Seamless Boiler Tube with 80mm - 350mm Thickness GB 18248

China 37Mn 34Mn2V 30CrMo Seamless Boiler Tube with 80mm - 350mm Thickness GB 18248

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37Mn 34Mn2V 30CrMo Seamless Boiler Tube with 80mm - 350mm Thickness GB 18248

MOQ： 1 Ton
Price： US $1,007-1,621 / T
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Outer Diameter	6-1200mm
Wall Thickness	1-120mm
Length	6m,5.8m,11.8m,12m, or as required
Section Shape	Round
Surface Treatment	Black painted, PE coated, galvanized
Tensile Strength	415-735 MPa (varies by grade)
Yield Strength	205-440 MPa (varies by grade)
Elongation	18-30% (varies by grade)
Hardness	≤250 HB (varies by grade)
Carbon Content	0.05-0.20% (varies by grade)
Manganese Content	0.30-0.61% (varies by grade)
Chromium Content	0.50-10.00% (varies by grade)
Molybdenum Content	0.30-1.50% (varies by grade)
Heat Treatment	Full-automatic natural gas furnace, ±10°C tolerance
OD Tolerance	±0.4mm to ±1% (varies by size)

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Product Details
Company Details

Product Specification


Outer Diameter	6-1200mm	Wall Thickness	1-120mm
Length	6m,5.8m,11.8m,12m, or as required	Section Shape	Round
Surface Treatment	Black painted, PE coated, galvanized	Tensile Strength	415-735 MPa (varies by grade)
Yield Strength	205-440 MPa (varies by grade)	Elongation	18-30% (varies by grade)
Hardness	≤250 HB (varies by grade)	Carbon Content	0.05-0.20% (varies by grade)
Manganese Content	0.30-0.61% (varies by grade)	Chromium Content	0.50-10.00% (varies by grade)
Molybdenum Content	0.30-1.50% (varies by grade)	Heat Treatment	Full-automatic natural gas furnace, ±10°C tolerance
OD Tolerance	±0.4mm to ±1% (varies by size)
High Light	37Mn 34Mn2V 30CrMo Seamless Boiler Tube ，80mm - 350mm Thickness Alloy Steel Seamless Pipe ，GB 18248 Standard High-Temperature Seamless Tube

37Mn 34Mn2V 30CrMo Oil-DIP Seamless Boiler Tubes

High-quality cold rolled/cold drawn alloy steel seamless pipes with thickness range of 80mm to 350mm, manufactured according to GB 18248 standard. These boiler tubes are designed for high-performance applications in demanding industrial environments.

Product Specifications

Item: Cold Rolled / Cold Drawn alloy steel seamless pipe

Standard: JISG3467-88, JISG3458-88, GB3087, GB6479-2000, GB9948-2006, GB5310-95, GB9948-88, ASME SA210, ASME SA213, ASTM SA335, ASTMA335/A335m, ASTMA213/A213m, DIN 17175

Model No.: 12Cr1MoV, P2(10CrMo910), T91, P91, P9, T9, Cr5Mo, 15CrMo, P11, P12, 13CrMo44, 25CrMo, 30CrMo, 40CrMo, 12CrMo, X12CrMo91, 12Cr2Mo

Product Description

Surface: Black painted, PE coated, galvanized

Length: 6m, 5.8m, 11.8m, 12m, or as required

Wall Thickness: 1-120mm

Outer Diameter: 6-1200mm

Trade Terms

Payment Terms: T/T, L/C, Western Union

Price Terms: FOB, CIF, CFR, Ex-work, CNF

Chemical Composition (%)

Grade	C	Mn	P≤	S≤	Si	Cr	Mo	V≥
T11	0.05-0.15	0.30-0.60	0.025	0.025	0.50-1.00	0.50-1.00	1.00-1.50
T12	0.05-0.15	0.30-0.61	0.025	0.025	≤0.50	0.80-1.25	0.44-0.65
T13	0.05-0.15	0.30-0.60	0.025	0.025	≤0.50	1.90-2.60	0.87-1.13
T2	0.10-0.20	0.30-0.61	0.025	0.025	0.10-0.30	0.50-0.81	0.44-0.65
T5	≤0.15	0.30-0.60	0.025	0.025	≤0.50	4.00-6.00	0.45-0.65
T5b	≤0.15	0.30-0.60	0.025	0.025	1.00-2.00	4.00-6.00	0.45-0.65
T5c	≤0.12	0.30-0.60	0.025	0.025	≤0.50	4.00-6.00	0.45-0.65
T9	≤0.15	0.30-0.60	0.025	0.025	0.25-1.00	8.00-10.00	0.9-1.0
T22	0.05-0.15	0.30-0.60	0.025	0.025	≤0.50	1.90-2.60	0.87-1.13
T91	0.08-0.12	0.30-0.60	0.020	0.010	≤0.50	8-9.50	0.85-1.05	0.18-0.25
T92	0.07-0.13	0.30-0.60	0.020	0.010	≤0.50	8-9.50	0.3-0.60	0.15-0.25
T21	0.05-0.15	0.30-0.60	0.025	0.025	≤0.50	2.65-3.35	0.80-1.06

Mechanical Properties

Standard	Steel Grade	Tensile (MPa)	Yield (MPa)	Elongate (%)	Hardness
20MnG	20MnG	≥415	≥240	≥22
25MnG	25MnG	≥485	≥275	≥20
15CrMoG	15CrMoG	440~640	≥235	≥21
12Cr2MoG	12Cr2MoG	450~600	≥280	≥20
12Cr1MoVG	12Cr1MoVG	470~640	≥255	≥21
12Cr2MoWVTiB	12Cr2MoWVTiB	540~735	≥345	≥18
10Cr9Mo1VNb	10Cr9Mo1VNb	≥585	≥415	≥20
ASME SA210	SA210A-1	≥415	≥255	≥30	≤143HB
ASME SA210	SA210C	≥485	≥275	≥30	≤179HB
ASME SA213	SA213 T11	≥415	≥205	≥30	≤163HB
ASME SA213	SA213 T12	≥415	≥220	≥30	≤163HB
ASME SA213	SA213 T22	≥415	≥205	≥30	≤163HB
ASME SA213	SA213 T23	≥510	≥400	≥20	≤220HB
ASME SA213	SA213 T91	≥585	≥415	≥20	≤250HB
ASME SA213	SA213 T92	≥620	≥440	≥20	≤250HB
DIN17175	ST45.8/	410~530	≥255	≥21	/
DIN17175	15Mo3	450~600	≥270	≥22
DIN17175	13CrMo44	440~590	≥290	≥22
DIN17175	10CrMo910	480~630	≥280	≥20

Heat Treatment Assurance

Our facility utilizes a full-automatic natural gas furnace measuring 24 meters in length, ensuring precise temperature control with real temperature tolerance within 10°C.

Important Note: It is recommended that the temperature for tempering should be at least 100°F [50°C] above the intended service temperature. Please advise the manufacturer if the service temperature exceeds 1100°F [600°C].

Quality Assurance

Each lot of raw materials undergoes spectrometer testing before storage
100% PMI (Positive Material Identification) of mother pipe to ensure correct material
100% PMI of finished pipe to verify correct grade production

Permitted OD Tolerance

OD (mm)	Plus Tolerance (+)	Minus Tolerance (-)
10.29-48.3	0.4	0.4
<48.3 - ≤114.3	0.79	0.79
<114.3 - ≤219.1	1.59	0.79
<219.1 - ≤323.9	2.38	0.79
<323.9	±1%	±1%

Applications

These high-pressure, low & medium pressure boiler steel pipes/tubes are ideal for manufacturing super-heaters, re-heaters, water walls, and economizers in large-scale power plants and industrial boiler systems.

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Manufacturer,Distributor/Wholesaler,Exporter 
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Total Annual:

>1000000
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Employee Number:

>100 
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Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative... Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative...

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JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
No.283-1, Youyi Middle Road, Xishan District, Wuxi City, Jiangsu Province
https://www.stainless-strips.com/

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