2. Professional sales manager quick reply within 24 hours.
3. Large Stock for regular sizes.
4. Free sample 20cm high quality.
5. Strong produce capability and capital flow.
2. Professional sales manager quick reply within 24 hours.
3. Large Stock for regular sizes.
4. Free sample 20cm high quality.
5. Strong produce capability and capital flow.
Standard & Material | Carbon Steel | ASTM A519 Standard | MT1010, MT1020, 1008, 1010, 1018, 1020, 1025, 1030, 1045, 1518 | |
JIS G3445 Standard | STKM11A STKM12A STKM12B STKM12C STKM13A STKM13B STKM13C STKM14A STKM14B STKM14C STKM15A STKM15C STKM16A STKM16C STKM17A STKM17C STKM18A STKM18B STKM18C STKM19A STKM19C STKM20A | |||
JIS G3473 Standard | STC370, STC440, STC510A, STC510, STC540, STC590A, STC590B | |||
DIN 2391 Standard | St 35, St45, St52 | |||
EN 10297-1 Standard | E235, E275, E315, E355, E470 | |||
EN 10305-1 Standard | E215, E235, E355 | |||
EN 10305-4 Standard | E215, E235, E355 | |||
BS 6323-3 Standard | HFS 3, HFS 4, HFS 5, HFS 8 | |||
NF A49-311 | TU 37-b, TU 52-b, TU 56-b, TU XC35 | |||
Alloy Steel | ASTM A519 Standard | 1345, 3140, 4130, 4135, 4140, 4150, 4320, 4340, 5120, 5130 | ||
JIS G3429 Standard | STH11, 12 STH21, 122 STH31 | |||
JIS G3441 Standard | SCR420TK, SCM415TK, SCM418TK, SCM420TK, SCM430TK, SCM440TK | |||
Size | Size Range | Tolerance | ||
OD | 10-219mm | -0.035 -- +0.045mm | ||
ID | 8-139mm | ±0.035mm | ||
WT | 1-40mm | depends on sizes | ||
Length | random or fixed length | +0-3.5mm | ||
Straightness | 0.15:1000, 0.4:1000, 0.5:1000 1:1000 or customized | |||
Surface Roughness | Ra 0.02—0.4μm | |||
| Final supply conditions | ||
| Designation | Symbol | Description |
| Cold finished (hard) | BK | Tubes do not undergo heat treatment following the final cold forming and, thus, have a rather high resistance to deformation. |
| Cold finished (soft) | BKW | The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming (e.g. bending, expanding). |
| Cold finished and stress-relieved | BKS | Heat treatment is applied following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree. |
| Annealed | GBK | The last cold forming process is followed by annealing in a controlled atmosphere. |
| Normalized | NBK | The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere. |
Packing Details : Bundles, With two nylon handle strip for each bundles
Delivery Details : Depending on the QTY, normally one month.
*We can offer one free sample length 20 cm with freight collected, if you want to buy our products and take our price.
*Quality/Quantity Claims: The Buyer is entitled to make both quality and quantity claim in writing against the Seller within 90 days after arrival at the port of destination.
1) 1 Tianjin government accredited business technology center
2) 3 National accredited laboratory with CNAS certificates
3) During and after production, QC staffs with more than 5 years experience inspect products in random.
Every year we attended exibition at home and abroad, visited customers and also have many customers visiting our factory.
Every Spring and Autumn
Every Two Year in Germany
Every year in Dubai and India
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SIZE: 21-610mm /1/2"-24"
Thickness: 1.0-30.0mm
SIZE: 21-610mm /1/2"-24"
Thickness: 1.0-30.0mm
SIZE: 20*20-500*500mm ; 20*30-300*500mm
Thickness: 1.2-20.0mm
SIZE: 219-2020mm
Thickness: 8.0-50.0mm
A: We are a professional seamless steel pipe manufacturer, has been involved in this industry for 10 years, with 260 experienced workers. Factory tours are very welcome.
A: Yes, we could offer the sample for free charge, but do not pay the cost of freight.
A: 30% T/T in advance ,balance before shippment.If you have another question, please feel free to contact us.
