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Model No.: GB/T 18254
Brand: Torich
Standard: GB
OD 5-100mm WT 0.5-15mm Length: 12000mm: High Carbon Chromium Bearing Steel Tube GB/T 18254
Packaging: Standard Exporting packing
Productivity: 20000 tons per year
Transportation: Ocean
Place of Origin: China
Supply Ability: 20000 tons per year
Certificate: ISO 9001 ISO14001
Payment Type: L/C,T/T
Incoterm: FOB
Torich is professional Manufacturer and exporter for Bearing Steel Tube High Carbon Chromium Steel Round Tube
China Bearing Steel Tube, Bearing Steel Round Tube,Bearing Oil Pipe, Bearing Seamless Steel Tube, Bearing Steel Pipe we offered that you can trust. Welcome to do business with us.
Round Bearing Galvanized Steel Tube, High Carbon Chromium Steel Round Tube, produced by GCr4, GCr15, GCr15SiMn, GCr15SiMo, GCr18Mon, according to Chinese Standard GB / T 18254
High Carbon Chromium Bearing Steel Tube GB/T 18254:2002 Size:
OD: 5-100mm
WT: 0.5-15mm
Length: 12000mm
Production method of Round Bearing Tube: Hot rolling and Cold Drawn
Application of bearing tubes: Bearing, Bearing Parts
High Carbon Chromium Bearing Steel Tube OD, Thickness and permissible:
Steel pipe type amd production method | Size | size range | permissible variation | ||
hot rolled steel pipe | Assel rolling+peeling | OD | 55-148 | ±0.15 | |
>148-170 | ±0.20 | ||||
thickness | 4-8 | +20% | |||
>8-34 | +15% | ||||
Assel hot rolled | OD | 60-67 | ±0.35 | ||
>75-100 | ±0.50 | ||||
>100-170 | ±0.50% | ||||
thickness | OD<80 | <80 | +12% | ||
OD≥80 | ≥80 | +10% | |||
cold drawn steel pipe | OD | ≤65 | +0.2 | ||
-0.10 | |||||
>65 | ±0.20 | ||||
thickness | 3-4 | +12% | |||
>4-12 | +10% | ||||
other production methods | negatiated by the parties and indicated into contract |
Steel Curvature | |||
steel type | curvature/(mm*m) | total curvature/mm | |
hot rolled round steel | ≤4 | ≤0.4%*steel length | |
hot rolled & annealed round steel | ≤3 | ≤0.3%*steel length | |
hot forged round steel | ≤5 | ≤0.5%*steel length | |
cold drawn round steel | Diameter≤25mm | ≤2 | ≤0.2%*steel length |
Diameter>25mm | ≤1.5 | ≤0.15%*steel length | |
steel pipe | thickness≤15mm | ≤1 | ≤4 |
thickness>15mm | ≤1.5 |
Grade and chemical composition | |||||||||||||
No. | Grade | C | Si | Mn | Cr | Mo | P | S | Ni | Cu | NI+Cu | moulded steel | continuously cast steel |
not exceeding | |||||||||||||
B00040 | GCr4 | 0.95-1.05 | 0.15-0.30 | 0.15-0.30 | 0.35-0.50 | ≤0.08 | 0.025 | 0.02 | 0.25 | 0.2 | / | 15*10-6 | 12*10-6 |
B00150 | GCr15 | 0.95-1.05 | 0.15-0.35 | 0.25-0.45 | 1.40-1.65 | ≤0.10 | 0.025 | 0.025 | 0.3 | 0.25 | 0.5 | 15*10-6 | 12*10-6 |
B01150 | GCr15SiMn | 0.95-1.05 | 0.45-0.75 | 0.95-1.25 | 1.40-1.65 | ≤0.10 | 0.025 | 0.025 | 0.3 | 0.25 | 0.5 | 15*10-6 | 12*10-6 |
B03150 | GCr15SiMo | 0.95-1.05 | 0.65-0.83 | 0.20-0.40 | 1.40-1.70 | 0.30-0.40 | 0.027 | 0.02 | 0.3 | 0.25 | / | 15*10-6 | 12*10-6 |
B02180 | GCr18Mo | 0.95-1.05 | 0.20-0.40 | 0.25-0.40 | 1.65-1.95 | 0.15-0.25 | 0.025 | 0.02 | 0.25 | 0.25 | / | 15*10-6 | 12*10-6 |
Condition of delivery for Round Bearing Tube:
After negotiation of the customer and supplier (stipulated in contract),the delivery condition can be [Annealed+phosphatized+micro drawing"+"Annealed+micro drawing"etc
WHWY Wire rod steel (hot rolling or spheroids annealed)
Hardness of Annealed steel products | |
Grade | HBW |
GCr4 | 179-207 |
GCr15 | 179-207 |
GCr15SiMn | 179-217 |
GCr15SiMo | 179-217 |
GCr18Mo | 179-207 |
Coloring requirements for different grades | |
Grade | Color |
GCr4 | one green+one white |
GCr15 | one blue |
GCr15SiMn | one green+one blue |
GCr15SiMo | one white+on yellow |
GCr18Mo | two green |
Degree of Material purity:
Non-metal inclusion Quanlified Level | ||
Non-metal inclusion Type | Qualified Level Not exceed | |
Thin type | Thick type | |
A | 2.5 | 1.5 |
B | 2 | 1 |
C | 0.5 | 0.5 |
D | 1 | 1 |
Product Categories : Bearing Steel Tube
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.