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Cold Drawn ASTM A21 Seamless Steel Tube Boiler Steel Tube 0.8 mm - 15 mm Thick

China Cold Drawn ASTM A21 Seamless Steel Tube Boiler Steel Tube 0.8 mm - 15 mm Thick

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Cold Drawn ASTM A21 Seamless Steel Tube Boiler Steel Tube 0.8 mm - 15 mm Thick

MOQ： 1 Ton
Price： US $985-1,560 / Ton
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Outer Diameter	6-1200mm
Wall Thickness	1-120mm
Length	6m, 5.8m, 11.8m, 12m, or as required
Surface Treatment	black painted, PE coated, galvanized
Section Shape	Round
Tensile Strength	≥415 MPa to ≥620 MPa
Yield Strength	≥205 MPa to ≥440 MPa
Elongation	≥18% to ≥30%
Hardness	≤143 HB to ≤250 HB
Carbon Content	0.05-0.15% to ≤0.15%
Manganese Content	0.30-0.60% to 0.30-0.61%
Chromium Content	0.50-1.00% to 8-9.50%
Molybdenum Content	0.44-0.65% to 0.85-1.05%
Heat Treatment Temp	1200°F-1375°F (650°C-745°C)
OD Tolerance	±0.4mm to ±1%

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Product Details
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Product Specification


Outer Diameter	6-1200mm	Wall Thickness	1-120mm
Length	6m, 5.8m, 11.8m, 12m, or as required	Surface Treatment	black painted, PE coated, galvanized
Section Shape	Round	Tensile Strength	≥415 MPa to ≥620 MPa
Yield Strength	≥205 MPa to ≥440 MPa	Elongation	≥18% to ≥30%
Hardness	≤143 HB to ≤250 HB	Carbon Content	0.05-0.15% to ≤0.15%
Manganese Content	0.30-0.60% to 0.30-0.61%	Chromium Content	0.50-1.00% to 8-9.50%
Molybdenum Content	0.44-0.65% to 0.85-1.05%	Heat Treatment Temp	1200°F-1375°F (650°C-745°C)
OD Tolerance	±0.4mm to ±1%
High Light	Cold Drawn Seamless Steel Tube ，ASTM A21 Boiler Steel Tube ，0.8 mm - 15 mm Thick Alloy Steel Tube

Cold Drawn Seamless Alloy Steel Tube ASTM A21

Beveled boiler steel tubes with wall thickness ranging from 0.8 mm to 15 mm, manufactured through cold rolling and cold drawing processes for superior dimensional accuracy and surface finish.

Product Specifications

Item Type: Cold Rolled / Cold Drawn Alloy Steel Seamless Pipe

Standards: 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 Numbers: 12Cr1MoV, P2(10CrMo910), T91, P91, P9, T9, Cr5Mo, 15CrMo, P11, P12, 13CrMo44, 25CrMo, 30CrMo, 40CrMo, 12CrMo, X12CrMo91, 12Cr2Mo

Physical Properties

Surface Treatment: Black painted, PE coated, galvanized

Available Lengths: 6m, 5.8m, 11.8m, 12m, or as required

Wall Thickness: 1-120mm

Outer Diameter: 6-1200mm

Trade Terms

Payment Methods: 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)	Elongation (%)	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 fully-automatic natural gas furnace measuring 24 meters in length, maintaining precise temperature control within 10ºC tolerance. For optimal performance, we recommend tempering temperatures at least 100°F [50°C] above intended service temperatures, particularly for applications exceeding 1100°F [600°C].

Quality Assurance Process

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

Permitted Outer Diameter Tolerance

Outer Diameter (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 and medium pressure boiler steel pipes and tubes are specifically designed for critical components in large-scale power plants, including super-heaters, re-heaters, water walls, and economizers.

Product Images

Manufacturing Excellence

Established in 1992, our 100,000 square meter facility employs 520 skilled professionals including engineers and technical staff. We maintain annual production capacity exceeding 20,000 tons of pipe fittings and 50,000 tons of pipe flux.

Certifications & Quality Standards

ISO9001 Quality Management, ISO14001 Environmental Management, OHSA18001 Occupational Health & Safety, Pressure Pipe Special Equipment License, and multiple industry network certifications including China Power Network and China Petrochemical Materials Supply Network.

Production Capabilities

Our 420 advanced equipment units include pushing machines, press machines, large heat treatment furnaces, beveling machines, and comprehensive testing instruments. We maintain over 20,000 tons of special steel pipes in inventory year-round.

Global Reach

Our products serve petroleum, chemical, power generation, metallurgy, urban gas, heat pipeline networks, and shipbuilding industries worldwide, with exports to Southeast Asia, Central Asia, North Africa, and South America.

Company Details

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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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