TORICH INTERNATIONAL LIMITED
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Supply Ability | 20000 Ton/Year |
| Delivery Time | 30 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 |
| 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 | 30 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 |
| 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 | ||
Seamless Steel Tubes for Low and Medium Pressure Boiler GB 3087
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% -10% | ||
| 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
Product Images:
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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