4140 Round Bar — Suppliers, Manufacturers & Wholesale Exporters

6 4140 Round Bar products from verified suppliers & exporters on EximNext B2B Marketplace

4140 Alloy Steel Round Bar

Supplier: Dongguan Songshun Mould Steel Co., Ltd., China

Hot Rolled Sae 4140 Steel Round Bar Products

Supplier: Dongguan Songshun Mould Steel Co., Ltd., China

Round Bar AISI 4140 Steel Pipe

Supplier: Big Co., Ltd., China

Aisi 4140 Round Bar

Supplier: Neworigin Special Steel Co. Ltd., China

4140 /42CrMo Round Bar

Supplier: Jiangsu Zhuhong Forging Co., Ltd., China

Alloy Steel ASTM 4140 Round Bar

Supplier: Hubei Zhongcheng New Material Supply Chain Management Co., Ltd., China

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4140 Round Bar — 6 Products

from 194,632 verified suppliers in 200 countries
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4140 Alloy Steel Round Bar
⚓ Harbor
4140 Alloy Steel Round Bar
The 4140 Alloy Steel Round Bar from EximNext is an industrial-grade product renowned for its exceptional strength and versatility. Made from chromium-molybdenum alloy steel, this round bar is ideal for a wide range of applications, including manufacturing, construction, and heavy machinery. Its enhanced properties make it suitable for high-stress environments. Key specifications include a slightly higher carbon content than 4130, which contributes to its improved hardness and strength, as well as excellent heat treatment capabilities. The round bar is available in various diameters and lengths, catering to diverse industrial needs. Common applications include the production of high-strength components, shafts, and gears, making it a vital material for manufacturers aiming for quality and durability. EximNext provides trade advantages such as flexible MOQ options for bulk supply, ensuring that you can meet your production needs efficiently. Our products are compliant with industry standards such as ISO and SGS, guaranteeing quality assurance. When you choose to source from EximNext, you benefit from verified suppliers, competitive pricing, and a global network that enhances your sourcing capabilities.
ContactMOQ: 1 Unit
Dongguan Songshun Mould Steel Co., Ltd.⚓ Harbor★4.5(0)
Supplier
Dongguan Songshun Mould Steel Co., Ltd.
⚓ Harbor
★4.5(0)
⚡ <4h✓ 0.00%
Hot Rolled Sae 4140 Steel Round Bar Products
⚓ Harbor
Hot Rolled Sae 4140 Steel Round Bar Products
EximNext offers Hot Rolled SAE 4140 Steel Round Bar Products, which are essential for various industrial applications requiring high strength and durability. This premium-grade steel is known for its excellent hardenability and toughness, making it a popular choice in the manufacturing of components subjected to high-stress conditions. Whether you are in the automotive, aerospace, or machinery industries, our SAE 4140 steel rounds are designed to meet your rigorous demands. Key specifications include a maximum diameter of 800 mm and lengths up to 5800 mm, allowing for flexibility in manufacturing processes. The steel is processed under strict quality control measures, ensuring consistent performance and reliability. Additionally, our round bars are suitable for heat treatment, enhancing their mechanical properties further. Industries such as automotive manufacturing, oil and gas, and heavy machinery frequently utilize these steel round bars for applications like gears, shafts, and structural components, where strength and reliability are paramount. EximNext provides competitive pricing and flexible MOQ options tailored to your production needs. Our products are certified to international standards, including ISO and CE, ensuring compliance and quality. By sourcing from EximNext, you connect with verified suppliers who understand the importance of timely delivery and high-quality products, giving you the advantage in your industrial operations.
ContactMOQ: 1 Unit
Dongguan Songshun Mould Steel Co., Ltd.⚓ Harbor★4.5(0)
Supplier
Dongguan Songshun Mould Steel Co., Ltd.
⚓ Harbor
★4.5(0)
⚡ <4h✓ 0.00%
Round Bar AISI 4140 Steel Pipe
⚓ Harbor
Round Bar AISI 4140 Steel Pipe
ASTM/AISI Standard Alloy Round Bar AISI 4140 is a chromium molybdenum alloy steel specification widely used in the oil and gas industry. Similar to grade AISI 4130 but with a slightly higher carbon content. American Iron and Steel Institute (AISI 4140) is a member of the low alloy tool steel family characterized by small quantities of trace elements added to an otherwise simple steel. These trace elements, when compared with more simple steel such as 1040, improves the characteristics of 4140 . However, because 4140 remains relatively simple, it is used in a wider range of applications than more specialized tool steels like the D or S series of steel. Specifications · Grade: Alloy steel · Standard: AISI, ASTM, BS, DIN, GB, JIS · OD:10-500mm · Thickness: Max:800mm · Width: 205mm~2300mm · Length: 1000mm~6000mm · Place of Origin: China (Mainland) · Model Number: 1.7220 / SCM430 / 30CrMo4 / 4130 ; 4140/42CrMo4/1.7225; En24 34CrNiMo6 1.6582 4340. · Application: Mould steel · Technique: Forged · Special Use: Mold Steel ,Statically and dynamically stressed components for vehicles, engines and machines. For parts of larger cross-sections, crankshafts, gears. · Shape: Round bars/Flat bar/Plate · Technology: Hot Rolled/Forged/Clod Draw · Heat treatment: Annealing/Q+T · Surface treatment:Black/Peeling/Polishing/Machined · Delivery condition: Hot rolled or forged/ Peeled or black surface/annealed or QT · Customer's logo: Available · Test: SGS/UT100%/Elements testing · Certificate: ISO/Mill certificate · Experience: Ten years manufacturer experience General Scope One of the most popular alloys for Oil Field applications, a high proportion of which is in Tubular form for downhole tools and accessories.
ContactMOQ: 1 Unit
Big Co., Ltd.⚓ Harbor★4.5(0)
Supplier
Big Co., Ltd.
⚓ Harbor
★4.5(0)
⚡ <4h✓ 0.00%
Aisi 4140 Round Bar
⚓ Harbor
Aisi 4140 Round Bar
Neworigin is the top trader\stockiest\exportor in china, which make us to offer a competitive price for customers. We provide 4140 of aisi\din\jis standards.Different sizes and types are offered to select. If you have any interest, welcome to contact with us.
ContactMOQ: 1 Unit
Neworigin Special Steel Co. Ltd.⚓ Harbor★4.5(0)
Supplier
Neworigin Special Steel Co. Ltd.
⚓ Harbor
★4.5(0)
⚡ <4h✓ 0.00%
4140 /42CrMo Round Bar
⚓ Harbor
4140 /42CrMo Round Bar
Quality Inspection: 100% inspection Technique: Forged Delivery time: within 40-60 days (Oversea) Diameter:130mm-1200mm Delivery condition:black surface/turned/heat treatment Length range: 4 meter and up or fix length Ultra-sonic testï¼?SEP 1921 Group 3 Class C/c or D/d,or E/e; Grain size: better than 5 As per ASTM E112-96. Length range:4 meter and up or fix length; Minimum oder:12 tons Produce capability :6000 tons/month Marking: Customized Or Standard Packing: Customized or Loose packing Payment:T/T or L/C
ContactMOQ: 1 Unit
Jiangsu Zhuhong Forging Co., Ltd.⚓ Harbor★4.5(0)
Supplier
Jiangsu Zhuhong Forging Co., Ltd.
⚓ Harbor
★4.5(0)
⚡ <4h✓ 0.00%
Alloy Steel ASTM 4140 Round Bar
⚓ Harbor
Alloy Steel ASTM 4140 Round Bar
Size of AISI 4140 (Can be Customised) Round Bar Diameter(mm): Hot Forged: f50-500 Length(mm):2500-5000 Hot Rolled:=50mm Steel Plate Thickness(mm): Hot Forged:=20mm Width(mm):20-810 mm Hot Rolled:=20mm Steel Type AISI GB W-Nr JIS 4140/B7 42CRMO4 1.7225 SCM440 Chemical Composition C Si Mn P S Cr Mo V 0.38-0.43 0.15-0.35 0.75-1.00 =0.030 =0.030 0.80-1.10 0.15-0.25 / Noted (1) Payment: 1.By confirmed, 100% valum irrevocable, letter of credit without recourse, Allowing partial shipment and transhipment, payable at sight presentation of shipping. 2.By T/T payment: 30% payment in deposited, 70% payment before shipment. (2) Delivery Time : 40 days after received the buyer's L/C or T/T deposite payment. (3) Delivery Port :Wuhan/Shanghai/Tianjin (4) Original Place : Hubei ,China . (5) Process: Electric furnace melted, forged and annealed, round bar turned. (6) Tolerance: Dia -0/+ 0~5mm, Thickness -0/+ 0~5mm, Width: -0/+ 0~10mm. (7) Hardness: Annealed HBS 217 max . (8) UT Test: SEP 1921/84/2 C/c class. (9) Allowance on quantity/weight: -/+ 10% per item. (10) Package: Seaworthy Packing.
ContactMOQ: 1 Unit
Hubei Zhongcheng New Material Supply Chain Management Co., Ltd.⚓ Harbor★4.5(0)
Supplier
Hubei Zhongcheng New Material Supply Chain Management Co., Ltd.
⚓ Harbor
★4.5(0)
⚡ <4h✓ 0.00%
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About 4140 Round Bar Trade

4140 Round Bar is one of the most actively traded commodities in global B2B markets. Major exporting countries include Ukraine, Russia, Argentina, and India, which together account for over 80% of global production. Buyers from the Middle East, Africa, and Southeast Asia represent the largest import demand.

When sourcing 4140 Round Bar, buyers typically evaluate suppliers based on price per metric ton, minimum order quantities, certifications (ISO, HALAL, SGS), and payment terms. The most common payment methods used in 4140 round bar trade are Letter of Credit (L/C) and Telegraphic Transfer (T/T).

EximNext connects buyers with 1,240+ verified 4140 round bar suppliers across 67 countries. Post a buy requirement to receive competing quotes within 24 hours, or browse our verified supplier directory to compare prices, certifications, and response times.

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