A633 Carbon Steel Plate
ASTM A633 steel includes four grades: A, C, D, and E, of which the thickness of grade C can reach 4 inches and the thickness of grade E can reach 6 inches. ASTM A633 steel specification is based on the standard specification for standardized high-strength low-alloy structural steel plate, which requires high notch toughness under low temperature conditions.
Keywords:
A633 Carbon Steel Plate
Category:
Carbon Steel Plate
A633 Carbon Steel Plate Description
ASTM A633 steel includes four grades: A, C, D, and E, of which the thickness of grade C can reach 4 inches and the thickness of grade E can reach 6 inches. ASTM A633 steel specification is based on the standard specification for standardized high-strength low-alloy structural steel plate, which requires high notch toughness under low temperature conditions.
Product Parameters
Product Name | A633 Carbon Steel Plate |
Production Process | Hot Rolling, Cold Rolling |
Material Standards | AISI, ASTM, ASME, DIN, BS, EN, ISO, JIS, GOST, SAE, etc. |
Width | 100mm-3000mm |
Length | 1m-12m, or Customized Size |
Thickness | 0.1mm-400mm |
Delivery Conditions | Rolling, Annealing, Quenching, Tempered or Standard |
Surface Process | Ordinary, Wire Drawing, Laminated Film |
Chemical Composition
A633 | C | Mn | P | S | Si | V | Nb |
GradeA | ≤ 0.18 | 1.00-0.35 | 0.035 | 0.04 | 0.15-0.50 | - | ≤ 0.05 |
GradeC | ≤ 0.20 | 0.15-0.50 | 0.035 | 0.04 | 0.15-0.50 | - | 0.01-0.05 |
GradeD | ≤ 0.20 | 0.70-1.35 | 0.035 | 0.04 | 0.15-0.50 | - | - |
GradeE | ≤ 0.22 | 1.15-1.50 | 0.035 | 0.04 | 0.15-0.50 | 0.04-0.11 | - |
Mechanical Properties
A633 | Yield Strength | Tensile Strength | Elongation 200mm, min% | Elongation 50mm, min% | ||||
65mm | 65-100mm | 100-150mm | 65mm | 65-100mm | 100-150mm | |||
Grade A | 290 | 290 | - | 430-570 | 430-570 | - | 18 | 23 |
Grade C&D | 345 | 315 | - | 485-620 | 450-590 | - | 18 | 23 |
Grade E | 415 | 415 | 380 | 550-690 | 550-690 | 515-655 | 18 | 23 |
Physical Performance
Physical Performance | Metric | Imperial |
Density | 7.75g/cc | 0.280 lb/in³ |
Scope of Application
ASTM A633 steel plate is mainly used in petroleum, chemical, power station, boiler and other industries, for the production of reactors, heat exchangers, separators, spherical tanks, oil and gas pipelines, liquefied gas tanks, shell nuclear reactor pressure, boiler drums, liquefied petroleum gas cylinders, high pressure water pipes, water turbines and other equipment and components.
Packing and delivery
The company has become a trustworthy partner of the international steel industry. After nearly two decades of unremitting efforts, our customer base now covers more than 110 countries and regions in Europe, the Middle East, South America, and Southeast Asia.

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As a leading steel supply chain enterprise, Jiangsu Yonggang Supply Chain Co., Ltd. has established a solid business network in domestic and international markets, relying on its strong resource integration capabilities. The company has a complete warehousing and logistics system covering major industrial areas, ensuring efficient product circulation. Through years of dedicated work, the company has accumulated rich industry experience, serving customers worldwide, including large-scale engineering projects and manufacturing enterprises. The company emphasizes sustainable development, significantly improving operational efficiency through optimized supply chain management, and providing customers with reliable and flexible solutions.
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The company's products are widely used in construction, machinery manufacturing, energy infrastructure, and other industries, meeting diverse domestic and international market demands. By integrating upstream and downstream resources, the company provides one-stop steel procurement and distribution services, aiming to become a core partner in the global steel supply chain.
CUSTOMER REVIEWS
Purchasing Manager
"We've been cooperating with Yonggang Steel for three years, and the product quality has always been consistently stable and reliable. Whether it's the tensile strength of the rebar or the dimensional accuracy of the profiles, they fully meet national standards, and some even surpass those of our competitors. Delivery times have never been delayed, especially for urgent orders. The sales team responds 24/7, and logistics are efficient, saving us considerable time and costs. I highly recommend them to any partner who needs high-quality steel!"
Technical Director
"We produce high-precision equipment, and we have high requirements for the material and processing performance of the steel." "Extremely high. Yonggang Steel's technical team customized steel plates with a special alloy ratio according to our needs, solving our long-standing problem of heat treatment deformation. Their professional service and rapid response make them a supplier we can trust long-term!"
Project Manager
"In the Yonggang high-speed rail project, Yonggang Steel provided full-service, one-stop service. From material selection and on-site technical guidance to after-sales testing, dedicated personnel were assigned to each step. Especially during the pandemic, they coordinated resources from multiple parties to ensure supply and maintain project progress. A company like this deserves to thrive!"
Plant Owner
"Even small-batch orders can enjoy VIP treatment! Yonggang Steel's sales team didn't treat our small orders carelessly; instead, they recommended a more material-saving cutting solution based on our processing techniques, helping us reduce material waste by 15%. Transparent pricing and flexible payment terms are incredibly friendly to SMEs!"
Export Trading Manager
"Export orders have strict requirements for material certification and packaging. Yonggang Steel's quality inspection reports are detailed and standardized, and the packaging uses rust-proof treatment and wooden pallets for reinforcement. There was no rust after three months of sea freight. Last year, we exported 3,000 tons of H-beams to Southeast Asia, and the customer had zero complaints during acceptance. This year, we've already increased our order to 8,000 tons!"
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