DIN2391 ST52 pre-honed tube
Product Description:
DIN2391 ST52 pre-honed tube | ||
Manufacturer | Liaocheng Xinglong Seamelss Steel Pipe Manufacturing Co., ltd | |
Standard | DIN2391 EN10305 | |
Material | ST44 ST45 ST52 E355 STKM13C | |
Heat treatment | BK+S | |
Specification | OD(mm) | ID(mm) |
50-300mm | 40-250 | |
I.D Tolerance | H8-H9 | |
Length | 3-9m | |
Straightness | 1/1000 | |
ID roughness | RA 0.4micron(max) | |
Technology | Honed & SRB(SKIVED AND ROLLER BURNISHED ) | |
Contact | SKYPE:zglpipe03 | |
Mobile phone: 0086-18663029896 | ||
Chemical composition of Material:
Steel grade | Chemical composition,% | |||||
C | Si | Mn | P | S | Cr | |
≤ | ||||||
20# | 0.17-0.24 | 0.17-0.37 | 0.35-0.65 | 0.035 | 0.035 | 0.25 |
16Mn | ≤0.2 | ≤0.5 | 1.00-1.60 | 0.03 | 0/03 | 0.25 |
ST52(E355) | ≤0.22 | ≤0.55 | ≤1.6 | 0.025 | 0.025 | 0.25 |
SAE1026 | 0.22-0.28 | 0.15-0.35 | 0.6-0.9 | 0.04 | 0.05 | / |
Mechanical Property of Material:
Delivery condition | cold finished(hard)(BK) | Cold drawn and stress-relieved(BK+S) | |||
Steel grade | Rm MPa | Elongation A5(%) | Rm MPa | ReH MPa | Elonggation A5(%) |
20# | ≥550 | ≥8 | ≥520 | ≥375 | ≥15 |
16Mn | ≥640 | ≥5 | ≥600 | ≥520 | ≥14 |
ST52 | ≥640 | ≥5 | ≥600 | ≥520 | ≥14 |
SAE1026 | ≥640 | ≥5 | ≥600 | ≥510 | ≥12 |
