GB/T 3077 15CrMo Steel Plate
- Alloy or Not: Alloy
- Thickness: 6 – 150 mm, or as requested
- Width: 900 – 4800 mm, or as requested
- Length: 3000 – 25000 mm, or as requested
- Technique: Hot Rolled, Cold Rolled, Forged
- Condition: +A/+N/+QT/+HR/+NT, or as requested
- Processing Service: Cutting, Machining, Forging, Welding, Drilling, etc.
- Certification: ISO 9001
- Inspection: SGS, TUV, Factory Inspection
- Origin: Hubei/Henan/Jiangsu, China
- Port: Qingdao, Tianjin, Lianyungang
- MOQ: 5 tons (or as per negotiation)
- Delivery Time: 8-14 Days
- Payment: T/T, L/C
Product Detail
15CrMo plate is a low-alloy heat-resistant steel recognized for its strength and heat resistance. It performs reliably at temperatures up to 500-550°C, with solid mechanical properties and resistance to oxidation. This makes it easy to machine and shape, though some care is needed during welding.
Typically, it’s used for seamless pipes and plates in high-temperature settings, including main steam pipes and boiler tubes in power plants. After proper heat treatment, it’s also suitable for producing key machine parts that operate at standard temperatures.
Contact us if you are unfamiliar with this product or have questions unsolved.
Naming Rules
Here’s a breakdown of 15CrMo:
- “15” – Approximate 0.15% carbon.
- “Cr” – Chromium.
- “Mo” – Molybdenum.
Features
15CrMo steel plates could bring the following benefits to your project:
- High Heat Resistance – Reliable performance at temperatures up to 550°C.
- Strong and Durable – Maintains strength under high temperature and pressure.
- Oxidation Resistance – Long-lasting, even in high-temperature environments.
- Versatile and Adaptable – Suitable for seamless pipes, plates, and critical parts, with enhanced properties after heat treatment.
- Good Machinability – Easy to machine and shape, reducing production time.
Applications
Energy/Utilities
Boiler tubes, main steam pipes, power plant components, heat exchangers, etc.
Petrochemical
Reactor vessels, high-pressure pipelines, storage tanks, refinery equipment, etc.
Manufacturing
Machinery parts, industrial equipment, pressure vessels, heavy-duty gears, etc.
Construction
Structural beams, support columns, bridge components, high-temperature structural elements, etc.
Automotive
Exhaust systems, engine parts, turbocharger components, high-strength chassis parts, etc.
Oil & Gas
Pipelines, drilling equipment, heat-resistant valves, refinery piping, etc.
Product Parameters
| Parameter | Details |
|---|---|
| Standard | GB/T 3077, GB 713, etc. |
| Grade | 15CrMo |
| Thickness | As requested; 6 – 150 mm; Standard 8/10/12/14/16/20/25/30/40 mm |
| Width | As requested; 900 – 4800 mm; Standard 2000/2200/2500 mm |
| Length | As requested; 3000～25000 mm; Standard 6000/8000/10000/12000 mm |
| Thickness Tolerance | ±1%; or as requested |
| Surface Treatment | Heat-treated, nitrided, carburized, electroplated (e.g., nickel-plated, chrome-plated), anti-rust painted, phosphated, black oxide coated, or as requested |
| Condition of Delivery | +A/+N/+QT/+HR/+NT, or as requested |
| Testing Method | CCA, HB/HRC/HV, NDT, TST, ITT, etc. |
| Application | Boiler tubes, main steam pipes, power plant components, reactor vessels, high-pressure pipelines, pressure vessels, structural beams, support columns, drilling equipment, refinery piping, etc. |
| Certification | Approved by ISO 9001 |
| Packaging | Standard seaworthy packing, or as requested |
*Condition of Delivery: A – Annealed, N – Normalized, QT – Quenched & Tempered, HR – Hot Rolled, NT – Normalized then Tempered
*Testing Method: CCA – Chemical Composition Analysis, HB/HRC/HV – Hardness Testing (Brinell, Rockwell, Vickers), NDT – Non-Destructive Testing, TST – Tensile Strength Testing, ITT – Impact Toughness Testing
Material Specifications
Chemical Composition
| Component | C | Si | Mn | P | S | Cr | Ni | Cu | Mo |
|---|---|---|---|---|---|---|---|---|---|
| Wt% | 0.12-0.18 | 0.17-0.37 | 0.4-0.7 | ≤0.035 | ≤0.035 | 0.8-1.1 | ≤0.3 | ≤0.3 | 0.4-0.55 |
*According to GB /T 3077-1999.
Mechanical Properties
| Thickness | Tensile Strength (σb) MPa | Yield Strength (σs) MPa | Elongation (δ) % | Reduction of Area (ψ) % | Hardness (HBW) | Impact Energy (KV2) J |
|---|---|---|---|---|---|---|
| ≤80 mm | ≥ 440 | ≥ 295 | ≥ 22 | ≥ 60 | ≤ 179 | ≥ 94 |
| 80-100 mm | ≥ 440 | ≥ 295 | ≥ 21 | ≥ 55 | ≤ 179 | ≥ 89 |
| 100-150 mm | ≥ 440 | ≥ 295 | ≥ 20 | ≥ 50 | ≤ 179 | ≥ 85 |
| 150-250 mm | ≥ 440 | ≥ 295 | ≥ 19 | ≥ 45 | ≤ 179 | ≥ 80 |
*According to GB /T 3077-1999.
*Heat Treatment Temperature: Quenching ±15°C, low-temperature tempering ±20°C, high-temperature tempering ±50°C.
*Tensile Test: If no yield point is observed in the tensile test specimen, and the yield strength (σs) cannot be determined, measure specified residual elongation stress (στ0.2).
*Hardness: Values in the table refer to Brinell hardness (HB10/3000) in the annealed or high-temperature tempered state.
*Recommended Heat Treatment: Quenching at 900°C (air cooling); tempering at 650°C (air cooling).
Why Choose Us
Consistent Quality
We tackle your primary quality concerns with 15CrMo steel — such as performance degradation from overheating or burning, cracks or fatigue risks during welding, chemical composition deviations, and surface defects like roughness or micro-cracks — through smart temperature control systems & precision heat treatment, preheating & post-weld heat treatment processes, automated spectrometric analysis & composition control, and advanced surface inspection technology, ensuring uniform structure, stable composition, and defect-free surfaces to meet the highest performance and durability standards.
Precise Dimensions
We guarantee the dimensional accuracy of our 15CrMo plates in accordance with international standards. We can maintain tight tolerances up to ±0.01 mm through precision equipment and ISO 9001-certified processes. Every batch undergoes 100% inspection, with zero deviation complaints in the past 5 years. We ensure smooth project execution without installation delays.
Stable Supply
We have 3 factories with a combined annual capacity of over 500,000 tons. In the event of any unforeseen circumstances, we can coordinate across factories to ensure stable production and on-time delivery.
Stable & Competitive Pricing
We maintain upstream raw material suppliers with price-lock agreements in place to effectively manage material cost fluctuations. Also, considering that our clients may face pressure from market changes, we will try our best to offer reasonable discounts to both new and existing clients.
Secure Packaging & Shipping
Packaging can be customized according to your requirements. We provide transparent, real-time photos of the packaging and loading process for your verification. You can also choose your trusted freight forwarder for transportation to ensure the entire logistics process is secure and reliable.
About Us
Founded in 1999, SteelPRO Group operates three factories with a combined annual production capacity of over 500,000 tons. We specialize in manufacturing a wide range of steel products, including round steel, profiles, plates, and pipes. Our portfolio encompasses low-alloy structural steel, tool steel, special steel, and more.
With strict adherence to global standards such as GB, ASTM, DIN, EN, and JIS, we ensure high-quality products, including heat-treated, machined, and prestressed steel. Our solutions are trusted by customers in diverse industries, and we proudly export to different countries across Europe, North America, and Asia.
At SteelPRO, we are dedicated to delivering tailored steel solutions and growing alongside our dear clients.
Certification
FAQ
What are your prices?
Our prices are subject to change depending on supply and market conditions. For an accurate and up-to-date quote, please contact our sales team directly.
Can you provide relevant documentation?
Yes, we can provide a wide range of documentation, including Certificates of Analysis/Conformance, Insurance, Certificates of Origin, and any other required export documents.
What is the average lead time?
As per mass production, the lead time is 5-20 days after:
1) we have received your deposit; 2) we have received your final confirmation on your orders.
If our lead time doesn’t meet your deadlines, please contact our sales directly in advance in case of any potential issues. We will try to accommodate your needs in all cases, and we are able to do so in most cases.
Can you provide free samples?
Yes, we can provide free samples for quality evaluation. However, shipping costs are generally covered by your company.
Can I visit your factory?
Of course! You are welcome to visit our factory. Please contact us in advance to arrange a convenient time for your visit, and we will gladly organize a tour and provide any necessary information to ensure a productive visit.
Our Service
SteelPRO Group – manufacturer and solution provider for special steel, offering multi-industry application solutions and customised services, 100% quality free, accompanying customers in their growth!
Our Quality Control
- Roundness
- Tolerance
- Microstructure
- Non-Destructive Testing
- Destructive Testing
- Process Control
Service Integration Processing
- Welding
- Metal Fabrication
- CNC Machining
- Lathe
- Forming
