Sichuan Liaofu Special Steel Company is one of the most experienced manufacturers and suppliers of 35ncd16 equivalent material 1.6773 in China. With over 20 years' experience, our factory offer high quality products made in China with competitive price. Welcome to contact us for wholesale service.
Information on Sichuan Liaofu Special Steel Industry Co., Ltd. and Related Alloy Steel Products
After years of development, Sichuan Liaofu Special Steel Industry Co., Ltd. mainly produces die steel and alloy steel bars.
●Mature production capacity: Backed by 3-ton/5-ton electroslag furnaces (for large ingot smelting) and continuous hot rolling lines, we guarantee an annual output of 5,000+ tons of 35NCD16 steel - sufficient to fulfill bulk orders (100+ tons) or urgent requests (7-day lead time for small batches).
●Optimized logistics: Cooperate with major ports (Shanghai, Shenzhen, Hong Kong) and trusted freight forwarders to provide FOB/CIF terms, shortening cross-border delivery time to 15-30 days (Europe/North America) and 7-15 days (Southeast Asia).
●Full-process quality control: From ESR remelting (to reduce impurities) to 100% ultrasonic testing (per ASTM E2375/EN 10228-3), every batch of 35NCD16 steel undergoes:
Chemical composition testing (C: 0.30-0.40%, Ni: 3.50-4.20%, Cr: 1.60-2.00% - strictly matching 1.6773 standards);
Mechanical property verification (tensile strength ≥1230 MPa, yield strength ≥1030 MPa, elongation ≥10.0% - ensuring durability for high-stress parts).
●Customized technical guidance: Our engineers offer free process recommendations, including:
Hot forging parameters (optimal temperature: 1100-1150℃, cooling rate);
Heat treatment solutions (quenching + tempering to enhance dimensional stability);
Machining tips (e.g., centerless grinding for precision round bars).
Main Equipment of the Company
1. Smelting Equipment
3-ton and 4-ton electric arc furnace smelting equipment
0.5-ton, 1-ton, 3-ton, and 5-ton electroslag furnaces; among them, the 3-ton and 5-ton electroslag furnaces are equipped with the function of smelting large steel ingots
2. Steel Processing Equipment
Producer gas generators (main and auxiliary equipment)
Continuous heating furnaces, annealing furnaces, and electric car-type annealing furnaces
All-hydraulic electric grinding wheel peeling machines
Electric band saws, gantry sawing machines, etc.
3. Testing Equipment
It is equipped with advanced instruments for chemical analysis, physical examination, and mechanical performance detection.
Core Alloy Steel Grades and Technical Parameters
1. Equivalent Relationship of Steel Grade Standards
| Standard System | Steel Grade/Designation | Description of Equivalent Relationship |
|---|---|---|
| ASTM | ASTM 9160C | Equivalent to 35NCD16 and 36NiCrMo16 |
| DIN | DIN 36NiCrMo16 (1.6773) | Directly equivalent to 35NCD16 |
| AFNOR | AFNOR 35NCD16 | Equivalent to 1.6773 (36NiCrMo16) |
| AIR | AIR 9160C Grade 35NCD16 | Special-grade steel with matching core parameters |
2. Core Information of 35NCD16 Steel Grade
(1) Basic Material Properties
Material Category: Low-alloy structural steel
Material Characteristics: It combines high strength, high hardenability, and good dimensional stability, making it an ideal material for manufacturing large-section mechanical parts or complex-shaped, high-stress molds.
(2) Executive Standards
Technical Specifications: DGA-AIR 9160/C-1973, AIR 9160/C-1973
Testing Standards: ASTM E2375, SAE AMS 2154, SEP 1923, GB/T 4162, EN 10228-3 (100% ultrasonic testing)
(3) Processing Technology
Steelmaking → ESR Melting (Electroslag Remelting) → Blooming → Hot Forging → Hot Rolling → Heat Treatment → Straightening → Cold Working / Polishing / Centerless Grinding / Peeling or Rough Turned Machining
(4) Official Test Certificate
Formal official test certificates issued by TUV and SGS institutions.
(5) Chemical Composition (Mass Fraction, WEIGHT%)
| Element | Content Range | Element | Content Range |
|---|---|---|---|
| C (Carbon) | 0.30~0.40 | Cr (Chromium) | 1.60~2.00 |
| Si (Silicon) | 0.15~0.40 | Mo (Molybdenum) | 0.25~0.60 |
| Mn (Manganese) | 0.30~0.60 | Ni (Nickel) | 3.50~4.20 |
| P (Phosphorus) | ≤0.025 | S (Sulfur) | ≤0.020 |
(6) Mechanical Properties at Room Temperature
| Performance Index | Unit | Requirement |
|---|---|---|
| Tensile Strength (σb) | MPa | ≥1230~1360 |
| Yield Strength (σ0.2) | MPa | ≥1030 |
| Elongation (δ) | % | ≥10.0 |
Brief Description of 36CrNiMo16 Steel Grade
Material Type: Cr-Ni alloy steel
Product Form: Can be produced into round bars in hot-rolled or forged condition
Related Products: Belongs to the same category of low-alloy high-strength steel as 35NCD16, and is often used as an equivalent material in scenarios involving similar high-stress parts
Alloy Steel Products
Core Products: Alloy steel 35NCD16 bars, alloy steel 36NiCrMo16 bars
|
35NCD16/36NiCrMo16 |
||
|
Composition in % : CSiMnPSCrMoNi0.32-0.39max. 0.400.50-0.80max. 0,025max. 0,0251.60-2.00.25-0.453.6-4.1 |
Certifications
Factory Manufacture Process
1.Forged Ingot
2.Material Taking Machine
3.Forged Machine
4.Sawing Machine
5.Steel Grinding
6.Fished Steel Material
Products stocks:
Surface Polish bars
Surface Bright Bar
Black &Grinding surface bar
FAQ
Q: Is 35NCD16 completely interchangeable with DIN 1.6773 (36NiCrMo16)?
A: Yes, they are direct equivalents. We strictly control the chemistry to match the 1.6773 standard, specifically ensuring the Nickel (3.50–4.20%) and Chromium (1.60–2.00%) ranges are met. (Substitution approval must be confirmed by your design engineer.)
Q: How do you guarantee core mechanical properties for large-section bars?
A: We use our in-house 3-ton and 5-ton Electroslag Remelting (ESR) furnaces. This process significantly reduces impurities and ensures deep hardenability, guaranteeing a tensile strength of ≥1230 MPa and yield strength of ≥1030 MPa even in thick sections.
Q: Do you provide 100% ultrasonic testing (UT) on these forged bars?
A: Yes, 100% UT is mandatory. All bars are tested according to ASTM E2375 or EN 10228-3 to detect internal defects. We provide the UT report, and TUV or SGS third-party inspection is available before shipment.
Q: Can you supply 35NCD16 bars with a peeled or ground surface to save machining time?
A: Yes. We operate all-hydraulic peeling machines and centerless grinders at our base. We can supply bright, peeled (K12), or precision-ground (H9/H11) bars, which removes surface scale and decarburization, reducing your CNC cycle times.
Q: What is your lead time for urgent small batches?
A: Because our base produces over 5,000 tons annually and we hold regular stock, we can fulfill urgent small batches in as little as 7 days. Standard bulk orders typically take longer but are scheduled for fast delivery.
Q: Do you offer custom forging based on our specific drawings?
A: Yes. We provide custom hot forging at optimal temperatures of 1100-1150°C. Send us your drawing, and our engineering team will advise on machining allowances and the best subsequent heat treatment schedule.
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