304 stainless steel grinding rod is a kind of stainless steel bright rod with relatively accurate tolerance. The length tolerance is generally within 0.05mm, and the general straightness is produced and processed according to H8, H9, H11, etc.

There are two types of bars: hot-worked bars and cold-worked bars:

Hot working bar is a method of processing steel ingots to final size by hot rolling and hot forging; cold working bar is cold drawing, centerless grinding machine and polishing process of hot working bar to obtain strict tolerances.

The length of the bar includes indefinite length, fixed length and multiple length, etc.

Indefinite length, its length range is not less than 1m, such as 3-4m, 5-6m

Tensile strength σb (MPa)≥520

Conditional yield strength σ0.2 (MPa)≥205

Elongation δ5 (%)≥40 Section shrinkage ψ (%)≥60

Hardness≤187HBW;≤90HRB;≤200HV

Density (20℃, g/cm3): 7.93

Melting point (℃): 1398~1454

Specific heat capacity (0~100℃, KJ kg-1K-1): 0.50

Thermal conductivity (W·m-1·K-1): (100℃) 16.3, (500℃) 21.5

Linear expansion coefficient (10-6·K-1): (0~100℃) 17.2, (0~500℃) 18.4

Resistivity (20℃, 10-6Ω·m): 0.73

Longitudinal elastic modulus (20℃, KN/mm2): 193

304L Composition: C:≤0.03% Si:≤1.00% Mn:≤2.00% P:≤0.20% S:≥0.03% Cr:18.00-20.00(%)Ni:8.00-10.00(%)