GB/T 3077 35CrMo 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/+CR/+CD, 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
35CrMo steel plate is a robust alloy steel that combines chromium and molybdenum to deliver high strength, solid toughness, and reliable wear resistance. It maintains stability under high temperatures and pressures with good corrosion resistance, which makes it suitable for demanding environments. These characteristics make it a common choice for manufacturing mechanical parts that need to endure stress and impact, such as drive shafts, gears, and critical components in petroleum, chemical, and power equipment.
Compared to other grades in its series, 35CrMo provides a practical balance of strength and toughness. It is particularly suitable for applications that involve moderate loads and impacts, offering a high cost-performance ratio. Moreover, the 35CrMo steel plate is easy to weld and process, and its properties can be adjusted through heat treatment, offering flexibility to meet specific project requirements.
Contact us if you are unfamiliar with this product or have questions unsolved.
Naming Rules
Here’s a breakdown of 35CrMo:
- “35” – Approximate 0.35% carbon.
- “Cr” – Chromium.
- “Mo” – Molybdenum.
Features
35CrMo steel plates could bring the following benefits to your project:
- High Strength & Wear Resistance – Suitable for applications that require durability under high pressure and wear, extending equipment lifespan.
- Excellent Toughness and Impact Resistance – Maintains stable performance in low temperatures and harsh environments, reducing the risk of damage.
- Superior Hardenability – Ideal for heat treatment to enhance hardness and strength, meeting various manufacturing needs.
- Easy to Process – Good machinability, making it convenient for cutting, welding, and forming, which improves production efficiency.
- High-Temperature Resistance – Retains mechanical properties at high temperatures, suitable for components in high-heat environments.
Applications
Infrastructure
Construction beams, structural reinforcements, highway barriers, bridge supports, etc.
Mining
Drilling equipment, excavation machinery, crusher components, mine conveyor frameworks, etc.
Energy/Utilities
Pipeline fittings, hydroelectric turbine shafts, gas pipeline support structures, power grid components, etc.
Transportation
Automobile axles, train couplings, chassis frames, aerospace landing gear, etc.
Manufacturing
Heavy-duty machine gears, industrial press parts, metal forming dies, robotic arm components, etc.
Agriculture
Plow blades, tractor chassis, harvest machine parts, irrigation system pipes, etc.
Product Parameters
| Parameter | Details |
|---|---|
| Standard | GB/T 3077, ASTM A29/A29M, EN 10083-3, JIS G4053, ISO 683-2, 和 GOST 4543, etc. |
| Grade | 35CrMo, 4135, SCM435H, 34CrMo4, 1.7220, 35KHM |
| Thickness | As requested; 6 – 150 mm; Standard 8/10/12/16/20/25/30/40/50 mm |
| Width | As requested; 900 – 4800 mm; Standard 1500/1800/2000/2200/2500 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/+CR/+CD, or as requested |
| Testing Method | CCA, HB/HRC/HV, NDT, TST, ITT, etc. |
| Application | Drilling equipment, excavation machinery, pipeline fittings, gas pipeline support structures, automobile axles, train couplings, heavy-duty machine gears, industrial press parts, tractor chassis, plow blades, 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, CR – Cold Rolled, CD – Cold Drawn
*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% | 0.32-0.40 | 0.17-0.37 | 0.40-0.70 | ≤0.035 | ≤0.035 | 0.80-1.10 | ≤0.30 | ≤0.30 | 0.15-0.25 |
*According to GB /T 3077-1999.
Mechanical Properties
| Thickness (t, mm) | Heat Treatment Condition | Tensile Strength (σb) (MPa) | Yield Strength (σs) (MPa) | Elongation (δ) (%) | Reduction of Area (ψ) (%) | Hardness (HBW) | Impact Absorption Energy (KV2) (J) |
|---|---|---|---|---|---|---|---|
| t ≤ 80 mm | Quenched + Tempered | ≥ 980 | ≥ 835 | ≥ 12 | ≥ 45 | ≤ 229 | ≥ 63 |
| 80 mm < t ≤ 100 mm | Quenched + Tempered | ≥ 980 | ≥ 835 | ≥ 11 | ≥ 40 | ≤ 229 | ≥ 59.85 (5% reduction) |
| 100 mm < t ≤ 150 mm | Quenched + Tempered | ≥ 980 | ≥ 835 | ≥ 10 | ≥ 35 | ≤ 229 | ≥ 56.7 (10% reduction) |
| 150 mm < t ≤ 250 mm | Quenched + Tempered | ≥ 980 | ≥ 835 | ≥ 9 | ≥ 30 | ≤ 229 | ≥ 53.55 (15% reduction) |
*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 850°C (oil cooling); tempering at 550°C (water or oil cooling).
Why Choose Us
Consistent Quality
We address your primary quality concerns with 35CrMo steel — including inconsistent microstructure, insufficient hardness, decarburization and oxidation layers, crack defects, and work hardening — through precise temperature-controlled QT processes & automated heat treatment control systems, protective atmosphere processing, full crack detection, and optimized cutting fluids with specialized tool combinations. We ensure that our 35CrMo steel meets your stringent requirements for performance and longevity.
Precise Dimensions
We guarantee the dimensional accuracy of our 35CrMo 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
