Premium 4145H Alloy Steel Plate and Round Bar Supply
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Product Highlights
- High-Strength Alloy Steel: AISI 4145H with 120 KSI minimum yield strength for drilling and oil equipment.
- Comprehensive Customization: Offers full, minor, sample-based, and design-based customization options.
- Wide Dimension Range: Hot rolled dia. 50-130mm and forged dia. 100-1300mm available.
- Strict Quality Control: 100% visual and function inspection with full traceability of raw materials.
- Advanced Heat Treatment: Delivered via EAF+LF+VD process with Q+T treatment and UT 100% passed.
- ISO9001 Certified: Manufacturer holds ISO9001:2015 certification with 21 QA/QC inspectors.
- Global Market Reach: Serves North America, Europe, Southeast Asia, and other international markets.
- Flexible Payment Terms: Accepts LC, T/T, D/P, PayPal, and Western Union for international trade.
Product Attributes
- Customization
- Available
- Standard
- AISI, ASTM, DIN, JIS
- Special Use
- High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Free Cutting Steel, Mold Steel
- Model NO.
- 4145h
- Transport Package
- Customization
- Specification
- Customization
- Trademark
- Ningbo Ningshing
- Origin
- China
- Production Capacity
- 10000 Tons/Year
Product Images of Premium 4145H Alloy Steel Plate and Round Bar Supply
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Premium 4145H Alloy Steel Plate and Round Bar Supply -
Premium 4145H Alloy Steel Plate and Round Bar Supply -
Premium 4145H Alloy Steel Plate and Round Bar Supply -
Premium 4145H Alloy Steel Plate and Round Bar Supply -
Premium 4145H Alloy Steel Plate and Round Bar Supply -
Premium 4145H Alloy Steel Plate and Round Bar Supply -
Premium 4145H Alloy Steel Plate and Round Bar Supply
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Product Description
Ningshing Distributor 4145h/4145h 120 Ksiasper/1045/Flat Bar/Steel Block/Round Bar
Ningshing Precision Machinery began in 1992. We devote oneself to providing One-Stop Solutions to our customers on Tool Steel, Die Steel, Alloy Steel, Mold Base, Machining Parts, CNC Machine.
4145H 120 KSIasper
AISI 4145H 120 KSI Alloy Steel Bar for Drilling Collar, Drill Pipe, Square Kelly, Lifting Sub, Stabilizer
Dimensions
Hot Rolled Round:dia.50-130 mm.
Forged Round: dia.100-1300 mm.
Delivery Condition
EAF+LF+VD, Hot Rolled or Forged, Machined, Q+T, UT 100% Passed.
Chemical Composition(%)
| C | Si | Mn | P | S | Cr | Mo | Ni | Cu |
| 0.42-0.49 | 0.15-0.35 | 0.80-1.15 | ≤ 0.020 | ≤ 0.025 | 0.75-1.20 | 0.15-0.45 | ≤ 0.25 | ≤ 0.30 |
Mechanical Properties
| Tensile Strength PSI (MPa) | Yield Strength PSI (MPa) | Elongation | Reduction of Area | Hardness | |
| Min. | 140000 | 120000 | 14% | 45% | 30 HRC (285 HB) |
| Max. | ------ | ------ | ------ | ------ | 36 HRC (341 HB) |
Characteristics
AISI / SAE 4145H grade is a low-alloy steel containing chromium and molybdenum as strengthening agents. The steel has good fatigue strength and impact toughness in low temperature, weldability and machinability.
Applications
This low-alloy steel is used in heat treated condition with 120 KSI minimum yield strength for oil and gas equipments of well drilling, wellhead, Christmas tree, etc.
View more products, you can click product key words.
| Main Products | ||
| Steel Flat | Steel Plate | Die Steel |
| Plastic Mold Steel | Alloy Steel | Pre-machined Flat |
| Die Casting Die | Mold Base | Aluminum Die |
About the Supplier
This supplier has been audited by BV. Verify the report on the official BV website with ID "MIC-ASR2531730". Items marked "
" are certified.
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Company Profile
With over 30 years of development, Ningshing Precision Machinery Co., Ltd. Upholds the philosophy of "Co-create, Win-win, Sharing" and focuses on delivering reliable materials, integrated manufacturing solutions and advanced equipment to global industrial partners. We operate across four core sectors:
▪ Special Steel Production & Distribution
▪ Integrated Die & Mould Service
▪ Precision Manufacturing Solutions
▪ Circular Sawing & Milling Machines
Leveraging a full industrial chain, from premium tool steel, precision machining and vacuum heat treatment to intelligent machine tool R&D and technical support, we provide end-to-end solutions that enhance efficiency, accuracy and long-term performance.
Today, Ningshing is committed to continuous innovation, high-quality manufacturing and customer-driven value creation. We serve global industries including tooling, mold making, machining, machinery and high-precision metal processing, helping customers achieve higher productivity, better efficiency and stronger competitiveness.
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- No. 25 Hongxiang Rd a Area Industry, Hongtang Jiangbei, 315033, Ningbo, Zhejiang, China
-
Plant Area
- 26599 square meters
-
Number of Employees
- 582
-
Registered Capital
- 60,000,000 RMB
-
Terms of Payment
- LC, T/T, D/P, PayPal, Western Union
-
International Commercial Terms(Incoterms)
- CIF, FOB, CFR, EXW
-
Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: one month -
Nearest Port
- Ningbo Port
-
Minimum Order Quantity
- USD 1000
-
Supply Chain Partners
- 12
Our Production Capability & Technical Expertise
-
Main Products
- Tool Steel, Alloy Steel, Mold Base, CNC Circular Sawing Machine, Mechanical Parts
-
Production Lines
- 8
-
Production Machines
- Cutting Facility, CNC Machining Center, Grinding Facility, Heat Treatment Facility, Saw Milling Facility
-
QA/QC inspectors
- 21 people
-
Inspection Type for Finished Products
- 100% inspection(Visual inspection & Function inspection)
-
Inspection Method for Finished Products
- Have instructions and uniformly followed
-
Customization Options
- Customization from Samples, Customization from Designs, Full Customization, Minor Customization, Flexible customization
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 15 people
-
Traceability of Raw Materials
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2003-06-25
-
Export Year
- 18 Years
-
Main Markets
- North America, South America, Europe, Southeast Asia/ Mideast, East Asia(Japan/ South Korea)
-
Repeat Buyers Choice
- 80%~100%
-
Number of Foreign Trading Staff
- 27
-
Overseas Agent/Branch
- Yes
-
New Products Launched in Last year
- Yes
Our Certifications, Standards & Industry Recognition
-
Management System Certification
- ISO9001:2015
-
Cooperated with Fortune 500
- Yes
FAQ
- What is the minimum order quantity?
- The minimum order quantity is USD 1000.
- What are the available dimensions for the steel bars?
- Hot rolled round bars range from 50mm to 130mm in diameter, while forged round bars range from 100mm to 1300mm.
- Do you offer OEM and ODM services?
- Yes, we provide OEM and ODM services including full customization, minor customization, and customization from samples or designs.
- What is the average lead time for production?
- The average lead time is one month, regardless of whether it is peak season or off-season.
- What payment terms do you accept?
- We accept LC, T/T, D/P, PayPal, and Western Union.
- How do you ensure product quality?
- We perform 100% inspection (visual and function) on finished products, have 21 QA/QC inspectors, and ensure traceability of raw materials.
- What is the chemical composition of AISI 4145H steel?
- It contains Carbon 0.42-0.49%, Silicon 0.15-0.35%, Manganese 0.80-1.15%, Chromium 0.75-1.20%, and Molybdenum 0.15-0.45%.
- What are the mechanical properties of the steel?
- The steel has a minimum tensile strength of 140,000 PSI, yield strength of 120,000 PSI, elongation of 14%, and hardness of 30-36 HRC.
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