TORICH INTERNATIONAL LIMITED
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Supply Ability | 20000 Ton/Year |
| Delivery Time | 15 days |
| Packaging Details | Packing in wooden box，hexagonal bundles or other seaworthy ways. |
| Product Name: | Seamless Steel Tubes For Low And Medium Pressure Boiler GB 3087 |
| Material: | 10# 20# STB33/42 St35.8 |
| Surface: | With Anti Rust Oil |
| Application: | Pipe For Low And Medium Pressure Boiler |
| Shape: | Round |
| OD: | 3-1200mm |
| WT: | 0.5-200mm |
| Length: | 4-12.5m |
| Tolerance: | According to the following tables or customers’ request. |
| Spec: | General Length:4-12.5m |
| Brand Name | TORICH |
| Model Number | GB 3087 |
| Certification | ISO 9001 ISO 14001 TS 16949 |
| Place of Origin | Zhejiang China |
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Product Specification
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram | Supply Ability | 20000 Ton/Year |
| Delivery Time | 15 days | Packaging Details | Packing in wooden box，hexagonal bundles or other seaworthy ways. |
| Product Name: | Seamless Steel Tubes For Low And Medium Pressure Boiler GB 3087 | Material: | 10# 20# STB33/42 St35.8 |
| Surface: | With Anti Rust Oil | Application: | Pipe For Low And Medium Pressure Boiler |
| Shape: | Round | OD: | 3-1200mm |
| WT: | 0.5-200mm | Length: | 4-12.5m |
| Tolerance: | According to the following tables or customers’ request. | Spec: | General Length:4-12.5m |
| Brand Name | TORICH | Model Number | GB 3087 |
| Certification | ISO 9001 ISO 14001 TS 16949 | Place of Origin | Zhejiang China |
| High Light | seamless steel pipe ，precision stainless steel tubing | ||
GB 3087 Seamless Steel Tubes for Low and Medium Pressure Boiler
Characteristic:
Good concentricity
Good surface quality
Good OD and ID tolerance
High Precision
Stable quality
Smooth Roughness
TORICH QUALITY ASSURANCE
Spec:
Material:10# 20# STB33/42 st35.8
Size Range:OD:4-1200mm
WT:0.3-200mm
General Length:4-12.5m
Tolerance:
According to the following tables or customers’ request.
Tolerance of the OD &WT:
OD Tolerance:
| Production Method | OD Tolerance |
| Hot Rolling(Extrusion) | ±1% or ±0.50mm |
| Cold Drawn(Cold Rolled) | ±1% or ±0.30mm |
Tolerance for wall thickness:
1.Wall thickness tolerance of Hot Rolling steel tube:
| Production Method | OD (DN) | WT/OD | Tolerance |
| Extruded tube | ≤102 | / | ±12.5% or ±0.40mm |
| ＞102 | ≤0.05 | ±15% or ±0.40mm | |
| ＞0.05-0.10 | ±12.5% or ±0.40mm | ||
| ＞0.10 | +12.5% | ||
| Heat expanding steel tube | / | ±15% | |
2.Wall thickness tolerance of Cold Drawn(Cold Rolled) steel tube:
| Production Method | WT | Tolerance |
| Cold Drawn(Cold Rolled) steel tube | ≤3 | +15%/-10% or ±0.40mm |
| ＞3 | +12.5% -10% |
Bending tolerance:
WT≤15mm, Bending≤1.5mm/m
WT＞15mm~30mm, Bending≤2.0mm/m
WT＞30mm/OD≥351mm, Bending≤3.0mm/m
Ovality and Wall unevenness:
The ovality and wall unevenness should be no more than 80% of the OD and wall thickness.(Or according to customer`s request)
Test:
Characteristic:
Good concentricity
Good OD and ID tolerance
High Precision
Stable quality
Smooth Roughness
TORICH QUALITY ASSURANCE
Processing:
RAW MATERIAL
↓
INCOMING INSPECTION
↓
STORAGE → CUTTING→HAMMERING → PICKING LUBRICATION → CLEANING → PHOSPHORI CLEAN
↓
ENDS CUTTING←STRAIGHTENING←HEAT TREATMENT↔MIDDLLE CHECK↔ COLD DRAWING ← LUBRICATING
↓
FINAL INSPECTION→BUNDING→STORAGE
Technical Delivery Conditions:Hot rolling with NBK
Widely used in the field of:Boiler pipe
1~ Incoming Raw Material Inspection
2~ Raw Material Segregation to avoid steel grade mix-up
3~ Heating and Hammering End for Cold Drawing
4~ Cold Drawing and Cold Rolling, on line inspection
5~ Heat Treatment, +A, +SRA, +LC, +N, Q+T
6~ Straightening-Cutting to specified length-Finished Measuring Inspection
7~ Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8~ Packing and Stocking.
100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects.
Product Images:
FAQ
Q: Are you trading company or manufacturer ?
A: A professional steel pipes materials inventor, manufacturer and solution provider
Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 30-60 days if the goods are not in stock, and it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but you need to pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance , balance before shippment.
If you have another question, pls feel free to contact us
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller
Year Established:
1997
Total Annual:
25000000-30000000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
Who We are ? -------A professional steel pipes materials inventor, manufacturer and solution providerTorich International Limited is a professional manufacturer and exporter of steel pipes materials. It is an international marketing and sales company specialized in steel tubes, which holds the ... Who We are ? -------A professional steel pipes materials inventor, manufacturer and solution providerTorich International Limited is a professional manufacturer and exporter of steel pipes materials. It is an international marketing and sales company specialized in steel tubes, which holds the ...
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