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

Min Bestellmenge	1 Tonne
Preis	US $1,007-1,621 / T

Produktdetails

Außendurchmesser	6 bis 1200 mm	Wandstärke	1-120mm
Länge	6 m, 5,8 m, 11,8 m, 12 m oder nach Bedarf	Abschnittsform	Runden
Oberflächenbehandlung	Schwarzes gemalt, das beschichtete PET, galvanisierten	Zugfestigkeit	415–735 MPa (variiert je nach Sorte)
Streckgrenze	205–440 MPa (variiert je nach Sorte)	Verlängerung	18–30 % (variiert je nach Klasse)
Härte	≤250 HB (variiert je nach Klasse)	Kohlenstoffgehalt	0,05–0,20 % (variiert je nach Sorte)
Mangan-Inhalt	0,30–0,61 % (variiert je nach Sorte)	Chrominhalt	0,50–10,00 % (variiert je nach Sorte)
Molybdängehalt	0,30–1,50 % (variiert je nach Sorte)	Wärmebehandlung	Vollautomatischer Erdgasofen, ±10°C Toleranz
Od-Toleranz	±0,4 mm bis ±1 % (variiert je nach Größe)
Hervorheben	37Mn 34Mn2V 30CrMo Seamless Boiler Tube , 80mm - 350mm Thickness Alloy Steel Seamless Pipe , GB 18248 Standard High-Temperature Seamless Tube

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Produkt-Beschreibung

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.

Product Images

Company Information

We are a professional enterprise specializing in pipe fittings production, steel pipe sales, and export services. Our core products include alloy steel pipes, alloy pipes, and alloy pipe fittings.

Established in 1992, our factory spans 100,000 square meters and employs 520 staff members, including 3 senior engineers, 12 engineers, and 150 professional technical personnel. Our annual production capacity exceeds 20,000 tons of pipe fittings and 50,000 tons of pipe flux.

Certifications & Quality Standards

ISO9001 International Quality Management System Certification
ISO14001 Environmental Management System Certification
OHSA18001 Occupational Health and Safety Management System Certification
Pressure Pipe Special Equipment Manufacturing License
Measurement Assurance Ability Certificate
China Datang Group Network Members Factory Certificate
Chemical Equipment Sentinel Production Enterprises Certificate
China Power Network Members Accessories Factory Certification
China Petrochemical Materials Supply Network Member Certification

Our company maintains advanced production equipment, comprehensive testing facilities, and strong technical capabilities. We stock over 20,000 tons of special steel pipes annually and serve as a special dealer for major steel mills including Tianjin Big Seamless Steel Tube, Shanghai Baosteel, Chengdu Steel Vanadium, Yangzhou Chengde, and Baotou Steel.

With a commitment to high-quality products and excellent service, our products are exported to Southeast Asia, Central Asia, North Africa, South America, and other global markets.

Umbauten:

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

37Mn 34Mn2V 30CrMo Seamless Boiler Tube

80mm - 350mm Thickness Alloy Steel Seamless Pipe

GB 18248 Standard High-Temperature Seamless Tube