High Quality A36 Ss400 S235jr S355j2 Q235B Q345b St37 A572 Seamless Carbon Steel Pipe
Detailed specification for High Quality A36 Ss400 S235jr S355j2 Q235B Q345b St37 A572 Seamless Carbon Steel Pipe
Review product features, application details and supporting information below. For pricing, samples or shipping questions, use the inquiry form on this page.
| Model NO. | A36 Ss400 S235jr S355j2 Q235B Q345b St37 A572 |
| Certification | ISO, RoHS, IBR, AISI, ASTM, GB, EN, DIN, JIS |
| Shape | Round |
| Technique | Hot Rolled |
| Surface Treatment | Bright |
| THK | 0.1-1.2mm, as Required |
| Width | as Required |
| MOQ | 1 Ton |
| Stock | According to The Quantity |
| Lead Time | Stock or 7--15 Days According to Quantity |
| Processing Service | Welding,Punching,Cutting,Bending |
| Price Term | EXW ,Fob, CFR ,CIF |
| Application-01 | Chemical Industry,Electric Power Industry |
| Application-02 | Water Engineering |
| Application-03 | Petrochemical Industry |
| Payment Term | Tt/LC |
| Package | Custom |
| Transport Package | Standard Marine Packaging |
| Specification | customized |
| Trademark | jsrysteel |
| Origin | China |
| HS Code | 7219120000 |
| Production Capacity | 5000000ton/Year |

Product introduction

Seamless carbon steel pipe is a hollow pipe made of carbon steel as the main material, which is made by hot rolling, cold rolling or cold drawing after perforating a whole round steel or solid pipe. Its core feature is that it has no welds and the cross section is continuously closed, so it has higher strength, pressure resistance and deformation resistance. Compared with welded pipes, the seamless structure avoids weld weaknesses and corrosion risks, and is suitable for high pressure, high temperature or corrosive environments.
Raw material processing
Round tube billets are cut into billets of about 1 meter and softened in a high-temperature heating furnace (fuel is hydrogen/acetylene).
Piercing forming
Piercing is performed using a tapered roller piercing machine, which is highly efficient and can process a variety of steel types to form a rough tube.
Rolling and sizing
Hot rolling process: The rough tube is subjected to three-roller oblique rolling, continuous rolling or extrusion, which is suitable for structural parts and fluid transportation.
Cold rolling/cold drawing process: After annealing, pickling, and multiple stretching, which is used for mechanical precision parts.


Main product

Jiangsu Rongyi Metal Co., Ltd
Jiangsu Rongyi Metal Co., Ltd supplies High Quality A36 Ss400 S235jr S355j2 Q235B Q345b St37 A572 Seamless Carbon Steel Pipe for international B2B buyers. Contact the supplier to discuss bulk orders, sample arrangements, custom requirements and shipping timelines.
Frequently Asked Questions
Find quick answers about samples, payment, delivery, packaging and quality assurance before placing an order.
Q1: May I get one sample before placing order?
AYes, Sample are available. For normal products, samples are for free and you just need to bear the freight; For those high value products, you just need to freight and certain product cost. When we both cooperate for some times or when you are our VIP customer, free sample will be offered when you need.
Q2: Which payment is available for your company?
AT/T, L/C or Ali trade insurance. You can choose the one which is convenient for you.
Q3: How and when can I get my goods after payment?
AFor small quantity products, they will be delivered to you by international courier(DHL, FedEx, TNT etc.) or by air. Usually it will cost 3-5days that you can get the goods after delivery. For large quantity products,shipping by see is worthwhile.It will cost days to weeks to come to your destination port, which depends on where the port is.
Q4: Is there any possible to use my appointed label or package?
AYes. If needed, we'd like to use label or package according to your requirement.
Q5: How can you guarantee the goods you offer is qualified?
AWe always believe honesty and responsibility are basis of one company, so whatever products we provide for you all are qualified. We will have goods tested and provide COA before delivery for sure.
Q6: Is the price on this page correct?
AThe listed price is only for reference, for latest price, pls contact us directly.
Q7: How can I get some samples?
AWe are honored to offer you free samples, just need to pay the freight cost.
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