Product Description
The cold rolled seamless pipe stands as a pinnacle of precision, offering unparalleled accuracy in dimensions and an exquisite surface finish. This seamless steel pipe is the ideal choice for mechanical structures and hydraulic equipment, where precision is paramount. With cold rolling, you achieve a significantly higher degree of dimensional accuracy compared to hot rolling, ensuring your projects maintain their integrity and reliability.
Advantages of Cold Rolled Seamless Pipe:
Experience the rapidity and efficiency of fast molding speeds with high output, while preserving the integrity of the coating. This versatile process allows for a myriad of cross-sectional shapes, catering to diverse usage conditions. The cold rolling technique induces substantial plastic deformation in the steel, thereby significantly enhancing its yield point and overall strength.
Embrace the future of manufacturing with high-precision cold-rolled precision steel pipes. These marvels of engineering not only conserve steel but also optimize processing efficiency and energy consumption. Characterized by strict inner and outer diameter dimensional accuracy, these pipes boast excellent surface smoothness, roundness, and straightness. They dramatically reduce machining time, elevate material utilization, and consequently, enhance product quality, making them an indispensable component in modern manufacturing.
Our versatile product finds its applications across a broad spectrum, predominantly in automotive and motorcycle parts as well as in the realm of hydraulic engineering machinery. Its adaptability and precision make it an ideal choice for these demanding sectors.
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Product Parameters
This standard is applicable to alloy steel pipes used in machinery, automobiles, and other mechanical parts.
| Grade |
C |
Si |
Mn |
S |
P |
Cr |
Mo |
| SCr420TK |
0.18~0.23 |
0.15~0.35 |
0.60~0.85 |
≤0.030 |
≤0.030 |
0.90~1.20 |
0.15~0.30 |
| SCM415TK |
0.13~0.18 |
0.15~0.35 |
0.60~0.85 |
≤0.030 |
≤0.030 |
0.90~1.20 |
0.15~0.30 |
| SCM418TK |
0.16~0.21 |
0.15~0.35 |
0.60~0.85 |
≤0.030 |
≤0.030 |
0.90~1.20 |
0.15~0.30 |
| SCM420TK |
0.18~0.23 |
0.15~0.35 |
0.60~0.85 |
≤0.030 |
≤0.030 |
0.90~1.20 |
0.15~0.30 |
| SCM430TK |
0.28~0.33 |
0.15~0.35 |
0.60~0.85 |
≤0.030 |
≤0.030 |
0.90~1.20 |
0.15~0.30 |
| SCM435TK |
0.33~0.38 |
0.15~0.35 |
0.60~0.85 |
≤0.030 |
≤0.030 |
0.90~1.20 |
0.15~0.30 |
| SCM440TK |
0.38~0.43 |
0.15~0.35 |
0.60~0.85 |
≤0.030 |
≤0.030 |
0.90~1.20 |
0.15~0.30 |
| Grade |
Rel(Mpa) |
Rm(Mpa) |
A(%) |
| SCM415 |
≥295 |
≥440 |
≥22 |
| SCM418 |
≥735 |
≥880 |
≥15 |
| SCM420 |
≥685 |
≥885 |
≥12 |
| SCM430 |
≥785 |
≥930 |
≥12 |
| SCM435 |
≥835 |
≥985 |
≥12 |
| SCM440 |
≥930 |
≥1080 |
≥12 |
| Size tolerance |
|
|
|
|
|
| OD |
Standard tolerance |
Special tolerance |
| Outer Diameter |
GB/T3639 |
DIN2391 |
EN10305 |
O D |
thickness |
| 4mm-20mm |
±0.10 mm |
±0.08 mm |
±0.08 mm |
±0.05mm |
±0.05mm |
| 20mm-30mm |
±0.10 mm |
±0.08 mm |
±0.08 mm |
±0.08 mm |
±0.08 mm |
| 31mm-40mm |
±0.15 mm |
±0.15 mm |
±0.15 mm |
±0.10 mm |
±0.08 mm |
| 41mm-60mm |
±0.20 mm |
±0.20 mm |
±0.20 mm |
±0.15 mm |
±0.15 mm |
| 61mm-80mm |
±0.30 mm |
±0.30 mm |
±0.30 mm |
±0.20 mm |
±0.20 mm |
| 81mm-120mm |
±0.45 mm |
±0.40 mm |
±0.40 mm |
±0.30 mm |
±0.30 mm |
| Equivalent Material referance: |
| GB |
TOCT |
ASTM |
BS |
JIS |
NF |
DIN |
| 10F |
|
1010 |
040A10 |
|
XC10 |
|
| 10 |
10 |
10,101,012 |
045M10 |
S10C |
XC10 |
C10,CK10 |
| 20 |
20 |
1020 |
050A20 |
S20C |
XC18 |
C22,CK22 |
| 45 |
45 |
1045 |
080M46 |
S45C |
XC45 |
C45,CK45 |
| 30CrMo |
30XM |
4130 |
1717COS110 |
SCM420 |
30CD4 |
|
| 42CrMo |
|
4140 |
708A42 |
|
42CD4 |
42CrMo4 |
| |
|
|
708M40 |
|
|
|
| 35CrMo |
35XM |
4135 |
708A37 |
SCM3 |
35CD4 |
34CrMo4 |
| Material |
10#-45#, 16Mn, A53-A369, Cr-Mo alloy, Q195-Q345, ST35-ST52, 10#, 20#, 45#, 16Mn, A213, A315, 30CrMo, Q195, Q215, Q235, Q345, ST35, St37, St45, St52 |
| Surface |
Black/ Bright |
| Standard |
DIN, GB, JIS, DIN 17175, DIN 2391, GB 5310-1995, GB/T 13793-1992, GB/T 3094- 2000, GB/T 8163-1999, JIS G3101 |
| Size |
OD 15mm-70mm |
| Thickness 1-12mm |
| Processing |
Cold rolled/ Cold drawn |
| 1. BK (+C) No heat treatment after last cold forming process. |
| 2. BKW (+LC) After last heat treatment there is a light finishing pass ( cold drawing) |
| 3. BKS (+SR) After the final cold forming process the tubes are stress relieve annealed. |
| 4. GBK (+A) After the final cold forming process the tubes are annealed in a controlled atmosphere. |
| 5. NBK (+N) After the final cold forming process the tubes are annealed above the upper transformation point in a controlled atmosphere. |
| Packing |
Woven bag/ Wooden or crate carton/ Bundle Packing/ Plain end or vanished as per customer's request. |
| Delivery time |
Normally 20-30 working days |
Certifications
FAQ
Q: Are you trading company or manufacturer?
A: We are professional manufacturer for steel pipes,and our company also is a very professional and technical foreign trade company for steel products. We have more export experience with competitive price and best after-sales service. Apart from this,we can provide a wide range of steel products to meet the requirement of customer.
Q:Will you delivery the goods on time?
A: Yes,we promise to provide best quality products and delivery on time no matter if the price change lot or not. Honesty is our company's tenet.
Q: Do you provide samples ? is it free or extra?
A: The sample could can provide for customer with free,but the freight will be covered by customer account. The sample freight will be returned to customer account after we cooperate.
Q: How can I get your quotation as soon as possible?
A: The email and fax will be checked within 24 hours,meanwhile,Wechat and WhatsApp will be online in 24 hours. Please send us your requirement and order information,specification(Steel grade,size,quantity,destination port),we will work out a best price soon.
Q: Do you have any certifications?
A: Yes,that's what we guarantee to our clients. we have IS09000,IATF16949 certinicate,ISO 14001 certificates etc.Our products are of high quality and we have professional engineers and development team.
Q: What is your terms of payment?
A:Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipmenit or paid against copy of B/L within 5 working days. 100% Irrevocable L/C at sight is favorable payment term as well.
Q: Do you accept the third party inspection?
A: Yes absolutely we accept.
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