Description: BBN steel is a well-known steel manufacturer and service provider in China, GB/T 3077 12Cr1MoV Alloy Steel Plate is our superior product, we are favored by customers with high quality, competitive price and excellent service
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram
Chinese Low-Alloy Heat-Resistant Steel | Excellent Thermal Strength & Oxidation Resistance | For Boiler, Thermal Power & Petrochemical | MTC & Third-Party Inspection
High-Temperature Strength12Cr1MoV delivers outstanding thermal strength and stable plastic toughness under long-term high-temperature service for high-pressure equipment.
Oxidation & WeldabilityExcellent high-temperature oxidation resistance; simple production process and excellent weldability for fabrication.
Stock & Fast DeliveryPlates 8–250 mm in stock, MTC available, custom cutting and third-party inspection supported.
01Product Overview & Specifications
GB/T 3077 12Cr1MoV is a Chinese low-alloy heat-resistant steel featuring outstanding thermal strength, high-temperature oxidation resistance and durable plastic toughness under long-term high-temperature service. With a simple production process and excellent weldability, it is a core material for high-temperature and high-pressure industrial equipment.
The only technical feature to note is its sensitivity to the normalizing cooling rate during heat treatment. With stable high-temperature mechanical properties, 12Cr1MoV alloy steel plate is widely used in thermal power, boiler manufacturing, petrochemical and high-temperature pressure equipment.
Item
Specification
Executive Standard
GB/T 3077 Alloy Structural Steels
Steel Grade
12Cr1MoV — low-alloy heat-resistant steel
Steel Category
Alloy Structural Steel (Cr-Mo-V, heat-resistant)
Product Form
Alloy Steel Plate
Thickness Range
8mm – 250mmcustomizable
Width Range
1500mm – 4050mmcustomizable
Length Range
3000mm – 15000mmcustom fixed length
MOQ
1 PC
Delivery Time
Promptly (Stock) / Custom production: 10 – 40 working days
Stock Status
Available
Certification
Mill Test Certificate (MTC) available, third-party inspection supported
Payment Terms
T/T, L/C At Sight
02Equivalent International Steel Grades
12Cr1MoV is a Chinese low-alloy heat-resistant steel grade. For cross-standard engineering substitution, equivalent grades in other systems should be confirmed with technical verification.
Standard System
Equivalent Grade
GB/T 3077 (China)
12Cr1MoV
Other standards (GOST / EN / ASTM)
Confirm by technical verification
Note: 12Cr1MoV is by designation a chromium-molybdenum-vanadium heat-resistant steel. The user-provided data for this page covers the GB/T 3077 grade only; specific equivalent grades in GOST, EN or ASTM systems share the Cr-Mo-V heat-resistant concept but differ in impurity limits and certification. For design-critical substitution, verify detailed specifications with our technical team before use.
03Grade Designation & Meaning
The GB/T 3077 designation 12Cr1MoV encodes the carbon level and the alloying elements of this low-carbon heat-resistant chromium-molybdenum-vanadium steel.
12
12 — Carbon Content
Indicates a mean carbon content of approximately 0.12% (100 × C%) for low-carbon composition and excellent weldability.
Cr
Cr — Chromium
Chromium improves high-temperature oxidation resistance and creep strength of the heat-resistant steel.
1Mo
1Mo — Molybdenum
The "1" marks the molybdenum level in the family; Mo raises high-temperature strength and avoids obvious temper brittleness.
V
V — Vanadium
Vanadium provides precipitation strengthening and improves long-term creep resistance at elevated temperature.
12Cr1MoV vs higher-carbon alloy grades: 12Cr1MoV is a low-carbon heat-resistant Cr-Mo-V steel. Its low carbon content gives excellent weldability and processability, while the Mo + V combination secures stable high-temperature strength and plastic toughness. Compared with higher-carbon chromium-molybdenum grades, it is especially suited to welded high-temperature pressure components where long-term service stability matters more than peak room-temperature strength.
04Chemical Composition
Composition limits of 12Cr1MoV provided for this page per GB/T 3077 (values in %, unless a range is given).
Element
Content (%)
C (Carbon)
0.08 – 0.15
Si (Silicon)
0.17 – 0.37
Mn (Manganese)
0.40 – 0.70
P (Phosphorus)
0.035 max
S (Sulfur)
0.035 max
Note: Composition limits above are those supplied for this page per GB/T 3077 (C, Si, Mn, P, S). 12Cr1MoV is by designation a chromium-molybdenum-vanadium heat-resistant steel; full chromium, molybdenum and vanadium limits and the heat-analysis of each batch are stated in its Mill Test Certificate (MTC). For design-critical compositional sign-off, request the complete GB/T 3077 specification from our team.
05Mechanical Properties
Mechanical properties of 12Cr1MoV in the heat-treated (normalizing + tempering) condition per GB/T 3077 (reference values; actual results depend on section size and heat-treatment parameters).
245 MPaMin. Yield Rp0.2Heat-treated
490 MPaMin. Tensile RmHeat-treated
Mechanical properties of 12Cr1MoV (GB/T 3077):
Grade
Thickness (mm)
Yield Rp0.2 (MPa, min)
Tensile Rm (MPa, min)
Hardness HBW
12Cr1MoV
6 – 50
245
490
—
12Cr1MoV
50 – 200
245
490
—
Note: 12Cr1MoV is a heat-resistant steel; the values above are achieved after normalizing and tempering and vary with section thickness and heat-treatment parameters. A key processing point is its sensitivity to the normalizing cooling rate, which must be controlled to secure stable high-temperature properties. Hardness (HBW) depends on the heat-treatment condition and is confirmed in the MTC for your required condition.
06Product Types, Processing & Service
BBN Steel stocks a wide range of 12Cr1MoV heat-resistant alloy steel plates with full traceability and official Mill Test Certificates, ideal for boiler, thermal power, petrochemical and high-temperature pressure equipment.
1
Alloy Steel Plate
Hot-rolled plates 8–250 mm thick, 1500–4050 mm wide, 3000–15000 mm long; customizable fixed length.
2
Stock & Traceability
Plates available in stock, fully traceable, MTC provided upon purchase.
3
Cutting & Processing
Custom cutting and processing per your drawings; third-party inspection supported.
1
Fast Delivery
Common sizes shipped promptly from stock; custom production 10–40 working days.
2
MTC & Inspection
Mill Test Certificates available; third-party quality inspection supported.
3
Flexible Payment
T/T and L/C at sight accepted for your convenience.
4
24h Consultation
Professional sales team provides 24-hour online consultation and quotation.
GB/T 3077 12Cr1MoV alloy steel plates, 8–250 mm thickness, 1500–4050 mm width, 3000–15000 mm length
Low-alloy heat-resistant steel, excellent thermal strength and high-temperature oxidation resistance
Core material for boiler, thermal power, petrochemical and high-temperature pressure equipment
MTC available, third-party inspection supported, full material traceability
T/T and L/C at sight payment, stock available, custom cutting and processing
Get Your GB/T 3077 12Cr1MoV Steel Plate Quotation Now
Send us your dimensions (thickness × width × length), quantity, and application (e.g. boiler, thermal power or petrochemical equipment). We will reply with stock status, competitive factory price and complete certification.
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Production Control
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