DIN 1629 Seamless Steel Pipe – Citon Tech Co., Ltd.

PRODUCT PARAMETERS

DIN 1629 is a standard for seamless steel pipes, with main grades including St37.0, St44.0, and St52.0. This standard does not generally impose a specific working pressure limit, but the working temperature is typically restricted to below 300°C.

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Description

FAQs

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Description

DIN 1629 seamless steel pipe its main grades are St37.0, St44.0, St52.0, DIN 1629. Generally, the DIN 1629 standard is not limited to the working pressure value, and the working temperature is limited to below 300 ℃.

Product Parameters

Product Name	DIN 1629 Seamless Steel Pipe
Standard	EN/DIN/JIS/ASTM/BS/ASME/AISI etc.
Outer Diameter	Seamless: 1/4″-36″	Welding: 21.3mm-3620mm
	Round Tube: 1/2″-10″	Square Tube/Rectangular Tube: 15x15mm-400x600mm
Wall Thickness	Seamless: 1.25mm-50mm	Welding: 1.65mm-65mm
Length	3-12 meters, Support customization
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

Grade	Materials No.	Deoxidation Yype	C	P	S	N¹)
St37	1.0254	R	0.17	0.040	0.040	0.009 ²)
St44	1.0255	R	0.21	0.040	0.040	0.009 ²)
St52	1.0421	RR	0.22	0.040	0.035	–

Mechanical Properties

DIN 1629		Yield Strength(Wall Thickness/mm)			Tensile Strength N/² mm	Elongation(%) A5
Grade	Material No.	<16	16-40	40-65	Tensile Strength N/² mm	Vertical	Transverse
St37	1.0254	235	225	216	350²) to 480	25	23
St44	1.0256	275	265 ¹)	255 ¹)	420²) to 550	21	19
St52	1.0421	355	345	335	500²) to 650	21	19

Scope of Application

Seamless steel pipe applications are: chemical plants, vessels, pipeline engineering and general mechanical engineering.

USA	Japan	Germany		U.K.		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
1213	SUM22	1.0715	9SMn28	230M07	1A	S250	CF9SMn28	11SMn28	1912	Y15
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	‐

FAQs

What types of products can we offer?

We offer a wide range of high-quality pipe products, including:

Hot Rolled Seamless Pipes – Ideal for high-pressure applications in industries like oil, gas, and chemicals.
Precision Pipes – Designed for high accuracy and smooth surfaces, commonly used in automotive, hydraulic, and machinery applications.
High Strength Pipes – Built to withstand extreme conditions, perfect for heavy industries such as steel, mining, and construction.
Special-Shaped Pipes – Customized pipes in non-standard shapes and sizes for specialized industries like aerospace, shipbuilding, and more.

Each product is designed to meet the specific needs of various industries, offering superior quality, durability, and performance.

What logistics do we ship through?

At Citontek Co., Ltd., we offer flexible and reliable shipping options to ensure timely delivery of our products worldwide. We partner with leading logistics providers to offer the following shipping methods:

Sea Freight – For bulk orders and cost-effective long-distance shipping, we work with top international carriers for safe and reliable sea freight.
Air Freight – For urgent shipments, we offer air freight services through global carriers, ensuring fast delivery for smaller orders or time-sensitive products.
Rail Freight – In regions with developed rail infrastructure, we can arrange rail shipping as an efficient and cost-effective option.
Road Freight – For local or regional deliveries, we use trusted road transport companies to ensure safe and timely deliveries.
Express Shipping – For small, urgent orders, we can arrange express services via major couriers like DHL, FedEx, or UPS.

We ensure that every shipment is carefully handled, with full tracking available for all orders to provide visibility and peace of mind to our customers.

Can it be customized as per our requirements?

Sea Freight – For bulk orders and cost-effective long-distance shipping, we work with top international carriers for safe and reliable sea freight.
Air Freight – For urgent shipments, we offer air freight services through global carriers, ensuring fast delivery for smaller orders or time-sensitive products.
Rail Freight – In regions with developed rail infrastructure, we can arrange rail shipping as an efficient and cost-effective option.
Road Freight – For local or regional deliveries, we use trusted road transport companies to ensure safe and timely deliveries.
Express Shipping – For small, urgent orders, we can arrange express services via major couriers like DHL, FedEx, or UPS.

We ensure that every shipment is carefully handled, with full tracking available for all orders to provide visibility and peace of mind to our customers.

What is our ordering process?

At Citontek Co., Ltd., we aim to make the ordering process as smooth and efficient as possible. Here’s a simple overview of our process:

Inquiry and Consultation:
Contact us with your product requirements, including specifications, quantities, and any customization needs. Our team will respond promptly to discuss your project.
Quotation and Confirmation:
Based on your requirements, we provide a detailed quotation including pricing, lead time, and shipping options. Once you approve the quote, we proceed with the next steps.
Order Placement:
After confirming the details, you can place your order by signing a purchase agreement or confirming the order in writing.
Production and Quality Checks:
Upon order confirmation, we begin the production process. During manufacturing, we conduct strict quality control checks to ensure the highest standards.
Shipping and Delivery:
Once your order is ready, we arrange for shipping based on your preferred logistics method (sea, air, rail, or road). You will receive tracking information for real-time updates.
After-Sales Support:
After delivery, we offer continued customer support to ensure your satisfaction. We also provide assistance with any queries or issues regarding the products.

This straightforward process ensures that your order is handled efficiently from start to finish, with complete transparency at every step.

What services are included in the after-sales service?

At Citontek Co., Ltd., we are committed to providing excellent after-sales service to ensure complete customer satisfaction. Our after-sales services include:

Product Support:
We offer technical support to help you with product installation, usage, and maintenance, ensuring optimal performance of our pipes.
Quality Assurance:
We guarantee the quality of our products and will address any issues related to defects or non-conformance. If any product does not meet agreed-upon standards, we will work with you to resolve the issue promptly.
Replacement and Returns:
In the unlikely event of any product defects or discrepancies, we provide a clear process for returns and exchanges, including replacements at no extra charge.
Custom Support:
If you have any special requirements or need further customization after receiving your order, we offer support to meet your evolving needs.
Warranty:
We provide warranties on our products, which cover manufacturing defects and certain performance issues. The specific warranty terms are outlined at the time of purchase.
Logistics Assistance:
If there are any shipping or delivery concerns after your order has been dispatched, we assist with tracking and resolving any issues related to the transportation or delivery process.
Ongoing Communication:
We maintain open communication with customers after the sale to ensure their ongoing satisfaction, gather feedback, and address any further needs.