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Hot rolled seamless steel tubes for hydraulic pillar service
Basic Info
Material | 1020 1035 1045 27SiMn 30MnNbRE |
Standard | GB/T 17396 |
Production method | Hot rolled |
Length | 6-11.5m |
O.D. | 100-900mm |
Wall thickness | 6-30mm |
Chemical Composition max %:
C | Si | Mn | Nb | RE | Cr | Ni | Cu | Mo | P | S | |
1020 | 0.18-0.23 | 0.30-0.60 | 0.035 | 0.035 | |||||||
1035 | 0.32-0.38 | 0.60-0.90 | 0.035 | 0.035 | |||||||
1045 | 0.37-0.44 | 0.60-0.90 | 0.035 | 0.035 | |||||||
27SiMn | 0.24-0.32 | 1.10-1.40 | 1.10-1.40 | 0.30 | 0.30 | 0.20 | 0.15 | 0.035 | 0.035 | ||
30MnNbRE | 0.27-0.36 | 0.20-0.60 | 1.20-0.60 | 0.020-0.050 | 0.02-0.04 | 0.30 | 0.30 | 0.20 | 0.15 | 0.035 | 0.035 |
No burrs
Density:7.85
kg/dm3
Quality control:
Raw material incoming inspection.
Tensile test
Hardness test
Impact test
Macrostructure defects test
ect.