42CrMo4 Alloy Steel Tube 15mm 30mm Precision Seamless Steel Pipe
High-quality cold rolled/cold drawn alloy steel seamless pipes
manufactured to international standards for demanding industrial
applications.
Product Specifications
Item: Cold Rolled / Cold Drawn alloy steel seamless pipe
Surface: Black painted, PE coated, galvanized
Length: 6m, 5.8m, 11.8m, 12m, or as required
Wall Thickness: 1-120mm
Outer Diameter: 6-1200mm
International 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
Available Grades
12Cr1MoV, P2(10CrMo910), T91, P91, P9, T9, Cr5Mo, 15CrMo, P11, P12,
13CrMo44, 25CrMo, 30CrMo, 40CrMo, 12CrMo, X12CrMo91, 12Cr2Mo
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 features a fully-automatic natural gas furnace
measuring 24 meters in length, capable of maintaining temperature
tolerance within 10ºC. For optimal performance, we recommend
tempering temperatures at least 50°C above intended service
temperatures.
Quality Assurance
- Each lot of raw materials undergoes spectrometer testing before
storage
- 100% Positive Material Identification (PMI) 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
High pressure, low & medium pressure boiler steel pipes/tubes are
suitable for manufacturing super-heaters, re-heaters, water walls,
and economizers in large-scale power plants.
Company Information
Established in 1992, our company specializes in pipe fittings
production, steel pipe sales, and export services. We manufacture
alloy steel pipes, alloy pipes, and alloy pipe fittings for various
industrial applications.
Facility: 100,000 square meters
Employees: 520 total, including 3 senior engineers, 12 engineers, and 150
technical professionals
Production Capacity: 20,000+ tons of pipe fittings annually, 50,000+ tons of pipe flux
Certifications: ISO9001, ISO14001, OHSA18001, pressure pipe special equipment
manufacturing license, and multiple industry network memberships
including China Power Network and China Petrochemical Materials
Supply Network.
Our advanced production facility includes 420 sets of key equipment
such as pushing machines, press machines, large heat treatment
furnaces, and comprehensive testing instruments. We maintain over
20,000 tons of special steel pipes in inventory year-round.
Products are exported to Southeast Asia, Central Asia, North
Africa, South America, and other global regions, serving industries
including petroleum, chemical, power generation, metallurgy, city
gas, heat pipe networks, and shipbuilding.
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