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S355J2G3 Steel Round Bar

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S355 Round Bar Manufacturer, S355J2 Round Bar Suppliers, S355J2G3 Round Bars Stockists in India

DETAILED INFORMATION

The steel S355J2G3 has high-yield properties made from carbon manganese. Due to its excellent strength and weldability, it is often referred to as S355 as a structural steel. Despite its low carbon equivalent, S355J2G3 has outstanding cold-forming properties, power, and weldability as structural steel. It is usually offered to the consumer in normalized form.

This high carbon grade is offered in a hot rolled or cold drawn form with an average yield of 355 N/mm2, making it an unalloyed and low carbon steel grade. Thus, the name is S355, and the letter “S” represents the steel structure. This material was developed to reduce slip in concrete.

The S355J2+N round bar has many advantages, such as being welder-friendly, high yield, low carbon, and cold forged. Compared to mild steel bars, these bars have a higher tensile stress than soft steel bars. Various sizes of these bars are available from 10mm-40mm in diameter, and the manufacturer sells them in bundles that weigh one ton. The bars come in multiple sizes, and the manufacturer aims to supply these bars in a wide variety of sizes. As well as available in the form of bent bars; the bars cannot be bent below a certain smallest radius, or they will split or crack.many advantages, such as bringing cold forged.

The bars’ manufacturing process is conducted stepwise, and this stepwise method is handled carefully by the experts to ensure that the bars keep all the features discussed above intact. The bars must be taken care of so they are not damaged and remain scratch-free and rust-free for a long time.

Several tests are done to ensure the bars are of the highest quality. The tests that can be carried out include PMI, Pitting corrosion, IGC, Flaring, flattening, Tensile, Hardness, Elongation, and macro and micro tests.

It is important to note that all of these tests are carried out on bars to check their quality, and those bars that pass through these tests can be inspected by a third-party team. Reviewing is necessary to ensure that the material produced meets industrial standards and is safe for marketing. Once this inspection is completed and approved by the third party, the material is sent to be packed.

CITIES WE DELIVER

Adoni, Amaravati, Anantapur, Chandragiri, Chittoor, Dowlaiswaram ,Eluru, Guntur, Kadapa, Kakinada, Kurnool, Machilipatnam, Nagarjunakoṇḍa, Rajahmundry, Srikakulam, Tirupati, Vijayawada, Visakhapatnam, Vizianagaram, Yemmiganur, Itanagar, Dhuburi, Dibrugarh, Dispur, Guwahati, Jorhat, Nagaon, Sivasagar, Silchar, Tezpur, Tinsukia, Ara, Barauni, Begusarai, Bettiah, Bhagalpur, Bihar, Sharif, Bodh Gaya, Buxar, Chapra, Darbhanga, Dehri, Dinapur Nizamat, Gaya, Hajipur, Jamalpur, Katihar, Madhubani, Motihari, Munger, Muzaffarpur, Patna, Purnia, Pusa, Saharsa, Samastipur, Sasaram, Sitamarhi, Siwan, Chandigarh, Ambikapur, Bhilai, Bilaspur, Dhamtari, Durg, Jagdalpur, Raipur, Rajnandgaon, Daman, Diu, Silvassa, Delhi, New Delhi, Madgaon, Panaji, Ahmadabad, Amreli, Bharuch, Bhavnagar, Bhuj, Dwarka, Gandhinagar, Godhra, Jamnagar, Junagadh, Kandla, Khambhat, Kheda, Mahesana, Morbi, Nadiad, Navsari, Okha, Palanpur, Patan, Porbandar, Rajkot, Surat, Surendranagar, Valsad, Veraval, Ambala, Bhiwani, Chandigarh, Faridabad, Firozpur Jhirka, Gurugram, Hansi, Hisar, Jind, Kaithal, Karnal, Kurukshetra, Panipat, Pehowa, Rewari, Rohtak, Sirsa, Sonipat, Bilaspur, Chamba, Dalhousie, Dharmshala, Hamirpur, Kangra, Kullu, Mandi, Nahan, Shimla, Una, Anantnag, Baramula, Doda, Gulmarg, Jammu, Kathua, Punch, Rajouri, Srinagar, Udhampur, Bokaro, Chaibasa, Deoghar, Dhanbad, Dumka, Giridih, Hazaribag, Jamshedpur, Jharia, Rajmahal, Ranchi, Saraikela, Badami, Ballari, Bengaluru, Belagavi, Bhadravati, Bidar, Chikkamagaluru, Chitradurga, Davangere, Halebid, Hassan, Hubballi-Dharwad, Kalaburagi, Kolar, Madikeri, Mandya, Mangaluru, Mysuru, Raichur, Shivamogga, Shravanabelagola, Shrirangapattana, Tumakuru, Vijayapura, Alappuzha, Vatakara, Idukki, Kannur, Kochi, Kollam, Kottayam, Kozhikode, Mattancheri, Palakkad, Thalassery, Thiruvananthapuram, Thrissur, Kargil, Leh, Balaghat, Barwani, Betul, Bharhut, Bhind, Bhojpur, Bhopal, Burhanpur, Chhatarpur, Chhindwara, Damoh, Datia, Dewas, Dhar, Dr. Ambedkar Nagar (Mhow), Guna, Gwalior, Hoshangabad, Indore, Itarsi, Jabalpur, Jhabua, Khajuraho, Khandwa, Khargone, Maheshwar, Mandla, Mandsaur, Morena, Murwara, Narsimhapur, Narsinghgarh, Narwar, Neemuch, Nowgong, Orchha, Panna, Raisen, Rajgarh, Ratlam, Rewa, Sagar, Sarangpur, Satna, Sehore, Seoni, Shahdol, Shajapur, Sheopur, Shivpuri, Ujjain, Vidisha, Ahmadnagar, Akola, Amravati, Aurangabad, Bhandara, Bhusawal, Bid, Buldhana, Chandrapur, Daulatabad, Dhule, Jalgaon, Kalyan, Karli, Kolhapur, Mahabaleshwar, Malegaon, Matheran, Mumbai, Nagpur, Nanded, Nashik, Osmanabad, Pandharpur, Parbhani, Pune, Ratnagiri, Sangli, Satara, Sevagram, Solapur, Thane, Ulhasnagar,n Vasai-Virar, Wardha, Yavatmal, Imphal, Cherrapunji, Shillong, Aizawl, Lunglei, Kohima, Mon, Phek, Wokha, Zunheboto, Balangir, Baleshwar, Baripada, Bhubaneshwar, Brahmapur, Cuttack, Dhenkanal, Kendujhar, Konark, Koraput, Paradip, Phulabani, Puri, Sambalpur, Udayagiri, Karaikal, Mahe, Puducherry, Yanam,  Amritsar, Batala, Chandigarh, Faridkot, Firozpur, Gurdaspur, Hoshiarpur, Jalandhar, Kapurthala, Ludhiana, Nabha, Patiala, Rupnagar,  Sangrur, Abu, Ajmer, Alwar, Amer, Barmer, Beawar, Bharatpur, Bhilwara, Bikaner, Bundi, Chittaurgarh, Churu, Dhaulpur, Dungarpur, Ganganagar, Hanumangarh, Jaipur, Jaisalmer, Jalor, Jhalawar, Jhunjhunu, Jodhpur, Kishangarh, Kota, Merta, Nagaur, Nathdwara, Pali, Phalodi, Pushkar, Sawai Madhopur, Shahpura, Sikar, Sirohi, Tonk, Udaipur, Gangtok, Gyalshing, Lachung, Mangan, Arcot, Chengalpattu, Chennai, Chidambaram, Coimbatore, Cuddalore, Dharmapuri, Dindigul, Erode, Kanchipuram, Kanniyakumari, Kodaikanal, Kumbakonam, Madurai, Mamallapuram, Nagappattinam, Nagercoil, Palayamkottai, Pudukkottai, Rajapalayam, Ramanathapuram, Salem, Thanjavur, Tiruchchirappalli, Tirunelveli, Tiruppur, Thoothukudi, Udhagamandalam, Vellore, Hyderabad, Karimnagar, Khammam, Mahbubnagar, Nizamabad, Sangareddi, Warangal, Agartala, Agra, Aligarh, Amroha, Ayodhya, Azamgarh, Bahraich, Ballia, Banda, Bara Banki, Bareilly, Basti, Bijnor, Bithur, Budaun, Bulandshahr, Deoria, Etah, Etawah, Faizabad, Farrukhabad-cum-Fatehgarh, Fatehpur, Fatehpur Sikri, Ghaziabad, Ghazipur, Gonda, Gorakhpur, Hamirpur, Hardoi, Hathras, Jalaun, Jaunpur, Jhansi, Kannauj, Kanpur, Lakhimpur, Lalitpur, Lucknow, Mainpuri, Mathura, Meerut, Mirzapur-Vindhyachal, Moradabad, Muzaffarnagar, Partapgarh, Pilibhit, Prayagraj, Rae Bareli, Rampur, Saharanpur, Sambhal, Shahjahanpur, Sitapur, Sultanpur, Tehri, Varanasi, Almora, Dehra Dun, Haridwar, Mussoorie, Nainital, Pithoragarh, Alipore, Alipur Duar, Asansol, Baharampur, Bally, Balurghat, Bankura, Baranagar, Barasat, Barrackpore, Basirhat, Bhatpara, Bishnupur, Budge Budge, Burdwan, Chandernagore, Darjeeling, Diamond Harbour, Dum Dum, Durgapur, Halisahar, Haora, Hugli, Ingraj Bazar, Jalpaiguri, Kalimpong, Kamarhati, Kanchrapara, Kharagpur, Cooch Behar, Kolkata, Krishnanagar, Malda, Midnapore, Murshidabad, Nabadwip, Palashi, Panihati, Purulia, Raiganj, Santipur, Shantiniketan, Shrirampur, Siliguri, Siuri, Tamluk, Titagarh

COUNTRIES WE DELIVER

Afghanistan, Albania, Algeria, Andorra, Angola, Antigua-Barbuda Argentina, Armenia, Australia, Austria, Azerbaijan, Bahamas, Bahrain, Bangladesh, Barbados, Belarus, Belgium, Belize, Benin, Bhutan, Bolivia, Bosnia-Herzegovina, Botswana, Brazil, Brunei, Bulgaria, Burkina-Faso, Burundi, Côte d’Ivoire, Cabo Verde, Cambodia, Cameroon, Canada, Central African Republic, Chad, Chile, China, Colombia, Comoros, Congo (Congo-Brazzaville), Costa-Rica, Croatia, Cuba, Cyprus, Czechia (Czech Republic), Democratic Republic of the Congo, Denmark, Djibouti, Dominica, Dominican Republic, Ecuador, Egypt, El Salvador, Equatorial Guinea, Eritrea, Estonia, Eswatini (fmr. “Swaziland”), Ethiopia, Fiji, Finland, France, Gabon, Gambia, Georgia, Germany, Ghana, Greece, Grenada, Guatemala, Guinea, Guinea-Bissau, Guyana, Haiti, Holy See, Honduras, Hungary, Iceland, India, Indonesia, Iran, Iraq, Ireland, Israel, Italy, Jamaica, Japan, Jordan, Kazakhstan, Kenya, Kiribati, Kuwait, Kyrgyzstan, Laos, Latvia, Lebanon, Lesotho, Liberia, Libya, Liechtenstein, Lithuania, Luxembourg, Madagascar, Malawi, Malaysia, Maldives, Mali, Malta, Marshall Islands, Mauritania, Mauritius, Mexico, Micronesia, Moldova, Monaco, Mongolia, Montenegro, Morocco, Mozambique, Myanmar (formerly Burma), Namibia, Nauru, Nepal, Netherlands, New Zealand, Nicaragua, North Korea, North Macedonia, Norway, Oman, Pakistan, Palau, Palestine-State, Panama, Papua, New Guinea, Paraguay, Peru, Philippines, Poland, Portugal, Qatar, Romania, Russia, Rwanda, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Samoa, San Marino, Sao Tome and Principe, Saudi Arabia, Senegal, Serbia, Seychelles, Sierra Leone, Singapore, Slovakia, Slovenia, Solomon Islands, Somalia, South Africa, South Korea, South Sudan, Spain, Sri Lanka, Sudan, Suriname, Sweden, Switzerland, Syria, Tajikistan, Tanzania, Thailand, Timor-Leste, Togo, Tonga, Trinidad and Tobago, Tunisia, Turkey, Turkmenistan, Tuvalu, Uganda, Ukraine, United Arab Emirates, United Kingdom, United States of America, Uruguay, Uzbekistan, Vanuatu, Venezuela, Vietnam, Yemen, Zambia, Zimbabwe.

S355J2 Carbon Steel Round Bar Specification List

Dimensions EN, DIN, JIS, ASTM, BS, ASME, AISI
Size 5 mm To 500 mm
Diameter 0.1 mm to 100 mm
Length 100 mm To 6000 mm Long & Above
Finish Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish
Tolerance H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements
Form Round, Square, Hex (A/F), Flate, Rectangle, Billet, Ingot, Forging Etc.
Stainless Steel ASTM A-479, A-182, 304, 304L,304H,304S, 316, 316L,316 Ti, 316H, 309, 310, 310S, 317L, 321, 347, 409, 410, 420, 430, 440, 446, 904L, etc.
Duplex Steel 2205, 31803, 32750, 32760, 2101, 2304.
Alloy Steel A-182 – F5, F9, F11, F12, F21, F22 & F91
Special Grade Stainless Steel 17-4 PH, Alloy 800, Alloy 600. Hastelloy C276.
Carbon Steel A 105, LF 2, Duplex Steel.

Chemical composition:

Element
C
Si
Mn
P
S
Cr
Al
Cu
Content (%)
0.20 Max
0.55 Max
1.60 Max
0.035 Max
0.035
0.30 Max
0.30 Max
0.45 Max

Mechanical Property

Tensile Strength Comparison

S355J2G3 Q355D
Thickness, mm Tensile Strength, Mpa Thickness,mm Tensile Strength, Mpa
<3 510-680
3-100 490-630 <100 470-630
100-150 470-630 100-150 450-600
150-250 450-630 150-250 450-600
250-400 450-600

Physical Properties:

Density – 7.83 g/cm³ at 20 °C

Thermal Properties:

Coefficient of thermal expansion α – – > 1.08E-5 1/K at -100 °C

Thermal conductivity λ –> 12.9 mm²/s at -100 °C37.6 W/(m·K) at -100 °C 

Thermal diffusivity αdiff  –> 12.9 mm²/s at -100 °C

S355J2G3 steel Supply Form & Size &Tolerance

Form of Supply

Size(mm)

Length(mm)

Round bar

Φ140-Φ1000

3000-10000

Square bar

100 x 100-600×600

3000-6000

Flat bar/Blocks

Thickness:120-800

2000-6000

Width:120-1500

Surface Finish

Black for Forged condition

Rough Turned   

Tolerance

(0,+5mm)

(0,+3mm)

Remark: All the sizes supplied in Forged condition

Yield Strength Comparison

S355J2G3

Q355D

Thickness,mm

Yield Strength, Mpa

Thickness,mm

Yield Strength, Mpa

<16

≥355

<16

≥355

16-40

≥345

16-40

≥345

40-63

≥335

40-63

≥335

63-80

≥325

63-80

≥325

80-100

≥315

80-100

≥315

100-150

≥295

100-150

≥295

150-200

≥285

150-200

≥285

200-250

≥275

200-250

≥275

250-400

≥265

Elongation Comparison

 

S355J2G3

Q355D

Thickness,mm

Elongation,%

Thickness, mm

Elongation,%

3-40

L:≥22

T:≥20

<40

L:≥22

T:≥20

40-63

L:≥21

T:≥19

40-63

L:≥21

T:≥19

63-100

L:≥20

T:≥18

63-100

L:≥20

T:≥18

100-150

L:≥18

T:≥18

100-150

L:≥18

T:≥18

150-250

L:≥17

T:≥17

150-250

L:≥17

T:≥17

250-400

L:≥17

T:≥17

Impact Energy Comparison

S355J2G3

Q355D

 

Temperature,°C

Impact, J

 

Temperature,°C

Impact, J
Longitudinal Transverse Longitudinal Transverse
-20°C ≥27 -20°C ≥34 ≥27

In the performance comparison table above, it is evident that there is not much difference between S355J2G3 and Q335D when it comes to tensile, yield, and elongation, which can be generally considered to be the same.

Regarding its impact performance requirements, Q355D requires a higher longitudinal impact value than S355J2G3 and lateral impact values significantly higher than those required by S355J2G3

 

Welding performance

Due to their application as structural steels, S355J2G3 and Q355D will inevitably require welding to be used in the application process. To evaluate S355J2G3 and Q355D’s welding performance, their equivalent carbon values (CEVs) can be calculated.

 

S355J2G3

Q355D

Thickness, mm

CEV

Thickness, mm

CEV

<40

0.45

<30

0.45

40-150

0.47

30-150

0.47

150-250

0.49

150-250

0.49

250-400

0.49

 

Carbon equivalent (CE)

Weldability

≤0.35

Excellent

0.36–0.40

Very good

0.41–0.45

Good

0.46–0.50

Fair

≥0.5

Poor

According to the table above, S355J2G3 and Q355D steels offer good welding performance based on the welding tests conducted. However, a reliable quality welding product can be achieved by using a good welding process.

Heating Rate

It is essential to control the heating rate during the normalizing heat treatment process, and that is what we have done!

There is a strong correlation between the heating rate and the structure of S355J2G3 steel. When heating the steel, one should consider the possibility of deformation and cracking caused by the temperature difference between the inside and outside of the workpiece.

There is a need to control the heating rate of S355J2G3 workpieces with large wall thicknesses or complex shapes. When the heating rate is too fast, it will cause cracking and scraping due to thermal stress. Of course, it cannot be too fast, as this will result in excessive heating losses on the surface of the workpiece, oxidation, and decarburization.

During the initial stage of the process, when the temperature is low, the temperature rise can be very fast. Once the temperature has risen to a certain extent, the temperature rise speed must be controlled by regulating the temperature rise speed to between 50 and 100 degrees Celsius per hour.

Heating Temperature

This is the normalizing temperature, that is, the temperature where the workpiece is heated to the extent that it is 30-50°C above Ac3, the purpose of which is to convert the whole ferrite structure present in the steel into austenite, thereby completing the austenitizing process.

When the steel temperature is too low, it cannot be completely austenitized, causing an uneven structure that affects the properties of the steel in turn. There is a possibility that the austenite grains in the steel will grow excessively if the temperature is too high, and it is easy to produce a coarse Widmandarin structure, which will decrease the plasticity and the toughness of the steel.

Holding Time

There is a great deal of relationship between the holding time and the effective section thickness of the material, the heating method, the amount of furnace loading, and the method used to load the furnace.

The holding time should be sufficient to ensure the material is fully and evenly heated. It should be applied flexibly in production to achieve maximum resource utilization rationally and efficiently. It is important to note that a holding period that is too long or too short will directly affect the future use of the material.

Cooling Rate

The cooling rate is an important indicator of the normalization process. When normalizing, not only should we control the heating rate, but also strictly control the cooling rate after the heat has been preserved.

The cooling rate of normalization is much faster than the cooling rate of annealing. Hence, the obtained structure is also finer, and the structure’s mechanical properties are also improved.

It is normal to use air cooling to cool to normalize. However, when a faster cooling speed is needed, they can also use fog, water, and other methods to speed up cooling.

Normalizing

Normalizing is used to refine the structure of forgings that have cooled non-uniformly after being forged, and it is considered a conditioning treatment before final heat treatment to refine the structure of the forgings. S355J2G3 steel should be normalized between 890°C and 950°C. Hold the steel at a suitable temperature for a suitable amount of time until the ferrite-to-austenite transformation is completed. Cool in still air after the procedure is completed.

Grade Application:

  • Freight cars,
  • Transmission towers,
  • Dump trucks,
  • Cranes,
  • Trailers,
  • Bulldozers,
  • Excavators,
  • Forestry machine

Application

The S355J2G3 structural steel grade, also known as low carbon structural steel, is widely used in engineering and construction industries for applications that require better mechanical properties than those of S275 and S235 grades.

This is a material that can be used for a variety of applications, including axles, bolts, connecting rods, motors, hydraulic, pump shafts, machinery components, transmission towers, dump trucks, cranes, trailers, bulldozers, excavators, forestry machines, railway wagons, dolphins, penstocks, pipes, highway bridges, buildings, oil and gas platforms, offshore structures, shipbuilding, power plants, palm oil machines and equipment, fans, pumps, lifting equipment, and port equipment.

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