logo
Nhà Sản phẩmThép tròn hợp kim

Hot Rolled & Ground 4140 Alloy Steel Round Bar for Precision Hardware Manufacturing

Chứng nhận
Trung Quốc TOBO STEEL GROUP CHINA Chứng chỉ
Trung Quốc TOBO STEEL GROUP CHINA Chứng chỉ
Khách hàng đánh giá
Trong xếp hạng nhà cung cấp mới nhất, TOBO đã giành được đánh giá xuất sắc, điều đó là tốt, sẽ tiếp tục hợp tác.

—— Brazil --- Aimee

Ống thép hợp kim ASTM A213 T9, Chất lượng ổn định, giá tốt, serive tuyệt vời, TOBO GROUP là đối tác đáng tin cậy của chúng tôi

—— Thái Lan --- Dave Mulroy

Tôi trò chuyện trực tuyến bây giờ

Hot Rolled & Ground 4140 Alloy Steel Round Bar for Precision Hardware Manufacturing

Hot Rolled & Ground 4140 Alloy Steel Round Bar for Precision Hardware Manufacturing
Hot Rolled & Ground 4140 Alloy Steel Round Bar for Precision Hardware Manufacturing Hot Rolled & Ground 4140 Alloy Steel Round Bar for Precision Hardware Manufacturing Hot Rolled & Ground 4140 Alloy Steel Round Bar for Precision Hardware Manufacturing Hot Rolled & Ground 4140 Alloy Steel Round Bar for Precision Hardware Manufacturing Hot Rolled & Ground 4140 Alloy Steel Round Bar for Precision Hardware Manufacturing Hot Rolled & Ground 4140 Alloy Steel Round Bar for Precision Hardware Manufacturing Hot Rolled & Ground 4140 Alloy Steel Round Bar for Precision Hardware Manufacturing Hot Rolled & Ground 4140 Alloy Steel Round Bar for Precision Hardware Manufacturing Hot Rolled & Ground 4140 Alloy Steel Round Bar for Precision Hardware Manufacturing Hot Rolled & Ground 4140 Alloy Steel Round Bar for Precision Hardware Manufacturing Hot Rolled & Ground 4140 Alloy Steel Round Bar for Precision Hardware Manufacturing Hot Rolled & Ground 4140 Alloy Steel Round Bar for Precision Hardware Manufacturing Hot Rolled & Ground 4140 Alloy Steel Round Bar for Precision Hardware Manufacturing Hot Rolled & Ground 4140 Alloy Steel Round Bar for Precision Hardware Manufacturing Hot Rolled & Ground 4140 Alloy Steel Round Bar for Precision Hardware Manufacturing

Hình ảnh lớn :  Hot Rolled & Ground 4140 Alloy Steel Round Bar for Precision Hardware Manufacturing

Thông tin chi tiết sản phẩm:
Nguồn gốc: Trung Quốc
Hàng hiệu: TOBO
Chứng nhận: CE&ISO
Số mô hình: Thanh tròn thép hợp kim
Thanh toán:
Số lượng đặt hàng tối thiểu: 1 chiếc
Giá bán: Có thể đàm phán
chi tiết đóng gói: theo yêu cầu của bạn
Thời gian giao hàng: 15-30Ngày làm việc
Điều khoản thanh toán: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Khả năng cung cấp: 10000 chiếc / tháng

Hot Rolled & Ground 4140 Alloy Steel Round Bar for Precision Hardware Manufacturing

Sự miêu tả
Tên sản phẩm: Thanh tròn thép hợp kim Ống đặc biệt: Api ống
Kiểu: Thanh kim loại thép Điều kiện giao hàng: trong vòng 15 ngày sau khi nhận được tiền đặt cọc
Bề mặt: cán nóng Chống ăn mòn: Cao
Giảm diện tích: >=40% Giá trị tác động: ≥50J
Cấp: Hợp kim 1.7225 Xử lý nhiệt: Làm nguội và tôi luyện, ủ
Công nghệ sản xuất: Điều kiện cán nóng hoặc rèn đóng gói: Gói
Hình dạng: Tròn Đường kính: 6mm đến 200mm
Lợi thế cạnh tranh: Độ tinh khiết và đồng nhất tốt.

Hot Rolled & Ground 4140 Alloy Steel Round Bar for Precision Hardware Manufacturing

 

This 4140 alloy steel round bar combines the structural integrity of hot rolling with the precision of ground surface treatment, tailored specifically for high-demand hardware applications. The hot-rolled base ensures a dense, uniform internal structure with excellent mechanical strength, while the precision ground finish delivers ultra-tight diameter tolerances, a smooth surface and minimal machining allowance—ideal for producing high-precision hardware parts.
 
As a classic medium-carbon alloy steel, 4140 offers outstanding tensile strength, wear resistance and hardenability, with superior performance after heat treatment. It excels in withstanding repeated loads and friction, making it the preferred material for heavy-duty hardware components.
 
Widely used in manufacturing fasteners, hinges, precision shafts, hand tools, locks and hardware accessories. Strict quality control ensures consistent chemical composition and dimensional accuracy, providing a reliable foundation for high-quality hardware production across industrial and commercial sectors.

 

Products round bar
Material SS400 S45C S20C
Standard ASTM A240,GB/T3280-2007,JIS4304-2005,ASTM A167
Length 3-12m
Size 8-400mm
Application ships building industry,petroleum,chemical industries, war and electricity industries, food processing and medical industry, boiler heat exchanger, machinery and hardware fields.
Payment Terms L/C , T/T or Western Union

 

ABOUT US

We specialsied in kinds of steel products more many years,especially in hot rolled steel round bars ,square bars,flat bars ,cold drawn bars and forged bars.
Our main material are all carbon steel and alloy steel ,such as :aisi1020 1035 1045 1055 s20c s35c s45c s55c ss400 a36 c20 c35 c45 ck45 aisi4140/scm440 aisi4340/40crnimoa aisi8620H,40cr,gcr15,sae52100,20Mn,40Mn,St52,St37,S235JR,etc

1. Grade:

45# 45B S45C C45 CK45 Cm45 AISI1045 SAE1045 ASTM1045 XC45 1.0503 0.1191 1.1201

2. Specification:

Dia: 20-300mm, Length:2000-13000mm or as required

3. Process:

Hot rolled, black surface

4. MOQ:

20mt.

5.. Chemical composition:

Grade C Si Mn P S B
45#

0.42

0.50

0.17

0.37

0.50

0.80

Max

0.035

Max

0.035

 
45B

0.42

0.49

0.17

0.37

0.60

0.90

Max

0.035

Max

0.035

0.0005

0.0035

S45C

0.42

0.48

0.15

0.35

0.60

0.90

Max

0.030

Max

0.035

 
1045

0.43

0.50

0.15

0.35

0.60

0.90

Max

0.030

Max

0.050

 

6.Quality condition

 

1): Straightness: 3mm/m (max)
2): Corner Radius: 3(max)
3): The ends will be end cut or gas cut
4): No cracks on the surface

7. Standard:

According to national standard (GB)for our products, if not, supply according to national standards(GB) or agreement.

Standards

ASTM / ASME,GB,DIN, JIS,T14975, etc
Steel Grade
200, 201B , 201H ,301, 303, TP304, TP304L/304L, 321 ,TP321, 316, TP316L, 316L, 316Ti,
Out Diameter
6mm to 2000mm or customized
Wall Thickness
0.5-220mm
Length
5.8m ,6m,or customized
Tolerance
Out diameter : +/-0.15mm ,Thickness: +/-11% of wall thicknessLength: +/-4.5mm - 0mm
Surface
Mirror Polish,Satin Polish,Without Polish,NO.1,NO.4
MOQ
1 ton
Supply ability
3000 tons per month
Packing
3, bundles to be covered by polythene & strapped securely
Payment terms
T/T or L/C,TT 30% in advance ,70% balance after received B/L copy
Delivery terms
FOB CFR CIF EX Works DDU
Delivery time
Within 5-20 days after received the deposit or as client's requirements

 

 Hot Rolled & Ground 4140 Alloy Steel Round Bar for Precision Hardware Manufacturing 0                                             

 

 

 

 


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Delivery&packing


Packaging: In wooded cases , pallets or according to clients' requirements


Shipping: Tianjin port, Shanghai port and the other main ports in China


Our service
FAQ
Q:Are you trading company or manufacturer ?
A: We are factory.


Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.


Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.


Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.

 

Chi tiết liên lạc
TOBO STEEL GROUP CHINA

Người liên hệ: Ms.

Tel: 13524668060

Gửi yêu cầu thông tin của bạn trực tiếp cho chúng tôi (0 / 3000)