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E-Mail: maike@cnmaikesteel.com
Add: Liaocheng City,Shandong,China
AISI/SAE 4140 Carbon Steel Bar
4140 is a 1% chromium-molybdenum medium hardenability general-purpose high-strength steel, usually hardened and tempered in the tensile range of 850-1000 Mpa (condition T). 4140 now have improved machinability, which greatly increases feed and/or speed, while extending tool life without affecting mechanical properties. The prehardening and tempering 4140 can be further case hardened by flame or induction hardening and nitriding.
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Description
AISI/SAE 4140 Carbon Steel Bar Description
4140 is a 1% chromium-molybdenum medium hardenability general-purpose high-strength steel, usually hardened and tempered in the tensile range of 850-1000 Mpa (condition T). 4140 now have improved machinability, which greatly increases feed and/or speed, while extending tool life without affecting mechanical properties. The prehardening and tempering 4140 can be further case hardened by flame or induction hardening and nitriding.
Product Parameters
Product Name | AISI/SAE 4130 Carbon Steel Bar | |||
Standard | EN/DIN/JIS/ASTM/BS/ASME/AISI, etc. | |||
Common Round Bar Specifications | 3.0-50.8 mm, Over 50.8-300mm | |||
Flat Steel Common Specifications | 6.35x12.7mm, 6.35x25.4mm, 12.7x25.4mm | |||
Hexagon Bar Common Specifications | AF5.8mm-17mm | |||
Square Bar Common Specifications | AF2mm-14mm, AF6.35mm, 9.5mm, 12.7mm, 15.98mm, 19.0mm, 25.4mm | |||
Length | 1-6meters, Size Accept Custom | |||
Diameter(mm) | Hot Rolling Round Bar | 25-600 | Cold Rolling Square Bar | 6-50.8 |
Hot Rolling Square Bar | 21-54 | Cold Rolling Hexagon Bar | 9.5-65 | |
Cold Rolling Round bar | 6-101.6 | Forged Rebar | 200-1000 | |
Surface Process | Bright, Polished, Black | |||
Other Services | Machining(cnc), Centerless Grinding(cg), Heat Treatment, Annealing, Pickling, Polishing, Rolling, Forging, Cutting, Bending, Small Machining, etc. |
Chemical Composition
1025 | C | Si | Mn | S | P | Cr | Ni | Cu |
0.62-0.70 | 0.17-0.37 | 0.90-1.20 | ≤ 0.035 | ≤ 0.035 | ≤0.25 | ≤0.25 | ≤0.25 |
Mechanical Properties
1025 | Tensile Strength | Yield Strength | Elongation | Reduction of Area | Hardness | |||
(Mpa) | (Mpa) | (%) | (%)min | Hot Rolled | Cold Rolled Soft | Cold Rolled Hard | Heat Treatment | |
825-925 | 520-690 | 14-21.5 | 10 | 240-270HB | 190-220HB | 300-340HB | 38-60HRC |
Scope of Application
SAE 1025 is a low-carbon steel with excellent corrosion resistance, heat resistance and mechanical properties. It can be used in a wide range of applications from auto parts to building materials.
America |
Japan |
Germany |
Britain |
|
France |
Italy |
Spain |
Switzerland |
China |
|
AISI/SAE |
JIS |
W‐nr. |
DIN |
BS |
EN |
AFNOR |
UNI |
UNE |
SS |
GB |
A570.36 |
STKM 12A |
1.0038 |
RSt.37‐2 |
4360 |
‐ |
E 24‐2 |
‐ |
‐ |
1311 |
15 |
- |
STKM 12C |
- |
- |
40 C |
- |
Ne |
- |
- |
- |
- |
1015 |
‐ |
1.0401 |
C15 |
080M15 |
‐ |
CC12 |
C15, C16 |
F.111 |
1350 |
15 |
1020 |
‐ |
1.0402 |
C22 |
050A20 |
2C |
CC20 |
C20, C21 |
F.112 |
1450 |
20 |
1213 |
SUM22 |
1.0715 |
9SMn28 |
230M07 |
1A |
S250 |
CF9SMn28 |
F.2111 |
1912 |
Y15 |
11SMn28 |
||||||||||
12L13 |
SUM22L |
1.0718 |
9SMnPb28 |
‐ |
‐ |
S250Pb |
CF9SMnPb28 |
11SMnPb28 |
1914 |
‐ |
‐ |
‐ |
1.0722 |
10SPb20 |
‐ |
‐ |
10PbF2 |
CF10Pb20 |
10SPb20 |
‐ |
‐ |
1215 |
‐ |
1.0736 |
9SMn36 |
240M07 |
1B |
S300 |
CF9SMn36 |
12SMn35 |
‐ |
Y13 |
12L14 |
‐ |
1.0737 |
9SMnPb36 |
‐ |
‐ |
S300PB |
CF9SMnPb36 |
12SMnP35 |
1926 |
‐ |
1015 |
S15C |
1.1141 |
Ck15 |
080M15 |
32C |
XC12 |
C16 |
C15K |
1370 |
15 |
1025 |
S25C |
1.1158 |
Ck25 |
‐ |
‐ |
‐ |
‐ |
‐ |
‐ |
25 |
A572-60 |
‐ |
1.890 |
StE380 |
4360 55 |
‐ |
‐ |
FeE390KG |
‐ |
2145 |
‐ |
1035 |
‐ |
1.0501 |
C35 |
060A35 |
‐ |
CC35 |
C35 |
F.113 |
1550 |
35 |
1045 |
‐ |
1.0503 |
C45 |
080M46 |
‐ |
CC45 |
C45 |
F.114 |
1650 |
45 |
1140 |
‐ |
1.0726 |
35S20 |
212M36 |
8M |
35MF4 |
‐ |
F210G |
1957 |
‐ |
1039 |
‐ |
1.1157 |
40Mn4 |
150M36 |
15 |
35M5 |
‐ |
‐ |
‐ |
40Mn |
1335 |
SMn438(H) |
1.1167 |
36Mn5 |
‐ |
‐ |
40M5 |
‐ |
36Mn5 |
2120 |
35Mn2 |
1330 |
SCMn1 |
1.1170 |
28Mn6 |
150M28 |
14A |
20M5 |
C28Mn |
‐ |
‐ |
30Mn |
1035 |
S35C |
1.1183 |
Cf35 |
060A35 |
‐ |
XC38TS |
C36 |
‐ |
1572 |
35Mn |
1045 |
S45C |
1.1191 |
Ck45 |
080M46 |
‐ |
XC42 |
C45 |
C45K |
1672 |
Ck45 |
1050 |
S50C |
1.1213 |
Cf53 |
060A52 |
‐ |
XC48TS |
C53 |
‐ |
1674 |
50 |
1055 |
‐ |
1.0535 |
C55 |
070M55 |
9 |
‐ |
C55 |
‐ |
1655 |
55 |
1060 |
‐ |
1.0601 |
C60 |
080A62 |
43D |
CC55 |
C60 |
‐ |
‐ |
60 |
1055 |
S55C |
1.1203 |
Ck55 |
070M55 |
‐ |
XC55 |
C50 |
C55K |
‐ |
55 |
1060 |
S58C |
1.1221 |
Ck60 |
080A62 |
43D |
XC60 |
C60 |
‐ |
1678 |
60Mn |
1095 |
‐ |
1.1274 |
Ck101 |
060A96 |
‐ |
XC100 |
‐ |
F.5117 |
1870 |
‐ |
W1 |
SK3 |
1.1545 |
C105W1 |
BW1A |
‐ |
Y105 |
C36KU |
F.5118 |
1880 |
‐ |
W210 |
SUP4 |
1.1545 |
C105W1 |
BW2 |
‐ |
Y120 |
C120KU |
F.515 |
2900 |
‐ |
Packing and delivery
The main export products include steel products such as steel plates/coils/tubes/rods. The management has been engaged in the steel industry for more than 20 years, the management team is experienced and has established solid business relationships with customers and factories. Lingyue's annual sales volume exceeds 10 million tons, and it provides customized processing services for a variety of products.
Factory Appearance
Packing and shipping
The company mainly exports to more than 60 countries including Australia Peru,Colombia, Brazil, Bangladesh, India, South Korea, Pakistan, Italy, Turkey, etc. The main export products include steel plate/coils/pipes/bars and other steel products.
Customer visit
The management has been engaged in steel industry for more than 20 years, full of experience for managing team and strong business relations with our valuable customers and factories.
Application areas
lingyue's annual sales more than 10 million tons, and provides a variety of product customized processing services. Our company always sticks to the following business principles: High Quality Products to win the market; Competitive Price to attract customers; Excellent Service to gain reputation.
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FAQ
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Are you a stock manufacturer or a trading company?

We are a stock manufacturer with our own production facilities and inventory. This means: Direct Quality Control We oversee the entire production process, ensuring strict quality standards from raw materials to finished products. Faster Delivery With ready stock and streamlined production, we guarantee shorter lead times compared to trading intermediaries. Cost-Effective Pricing By eliminating third-party margins, we offer competitive pricing without compromising on quality. Customization Flexibility While we maintain standard inventory, we also support tailored solutions for bulk orders to meet specific client requirements. Transparent Communication As a direct manufacturer, we provide clear technical support and real-time updates on order status. Interested in learning more? Contact us to discuss your needs or request a product catalog!

How do I get the price information?

For accurate and tailored pricing, please contact us via email or the inquiry form on our website. Here’s why we prioritize direct communication: Customized Quotes As a stock manufacturer, we offer volume-based discounts and adjust pricing based on your order quantity, material specifications, or customization needs. Real-Time Updates Prices may fluctuate due to raw material costs or seasonal promotions. Direct contact ensures you receive the latest offers. Expert Support Our team will provide detailed technical guidance alongside pricing to help you select the most cost-effective solution. We typically respond within 1 business hour!

Do you provide customised product service?

Absolutely. As a Tier-1 metal solutions partner, Shandong Maike Metal Materials Co., Ltd. specializes in delivering precision-engineered products tailored to your unique technical, dimensional, and compliance requirements. From prototype development to bulk production, we turn complex specifications into reality.

What payment methods do you accept?

We accept secure and flexible payment options to facilitate global transactions, including: TT (Telegraphic Transfer) The most common method for international trade, ensuring fast and direct bank-to-bank transfers. Other Methods For specific regional or customized needs, please contact our finance team.

What is the minimum order quantity (MOQ)?

Our standard minimum order quantity is 1 kilogram. This flexible policy is designed to: Enable Sample Testing New clients can order small quantities to evaluate product quality before committing to bulk purchases. Support Flexible Scalability Start with 1kg for urgent needs or niche projects, and scale up seamlessly to tons for long-term partnerships. No Hidden Constraints The 1kg MOQ applies to most stocked items—no mandatory volume tiers or bundling requirements. Quality Consistency Whether you order 1kg or 10 tons, we ensure the same certified quality standards. Why such a low MOQ? As a stock manufacturer, we prioritize accessibility and trust-building. Our in-house inventory allows us to serve both startups and large enterprises without compromising efficiency.

Do you provide samples? Is it free or extra charge?

Yes, we provide samples free of charge to help you verify product quality and compatibility. Here’s what you need to know: Zero Sample Fees Most standard items are available for free sampling (1-2 units or small quantities). Shipping Flexibility Free Shipping: Available for bulk order commitments. Paid Shipping: Clients cover express freight costs for non-bulk trial orders (we use discounted carrier rates). Custom Sample Support If you require tailored specifications, our engineers will work with you to develop samples at minimal cost. Why do we offer free samples? As a trusted stock manufacturer, we prioritize transparency and long-term partnerships. Testing our samples allows you to: ✅ Confirm material quality and performance. ✅ Reduce procurement risks before large orders. ✅ Streamline approvals for your end clients.
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