WYJ001-2006                                1E0682

1. Suitable for:

The technology conditions apply to caterpillar engineering machinery with thickness is not more than 40 mm of adjusting quality steel plates.

2. Standards: 1 E0577/0682

3. Technical conditions

3.1 chemical composition

The chemical composition of steel (including melting analysis and product analysis) should be in accordance with table 1.

Table 1     Wt％

Note: 1) Mo the biggest control quantity shall not exceed 0.25%.

2) shall be quoted inDOBsteel smelting analysis and product analysis of data, N, O, H also should also quote us, but not as a delivery terms, titanium/nitrogen than should be controlled in four or more, to ensure effective boron content.

3.2 delivery status: the steel plate conditioning state delivery.

3.3 mechanical properties

Inspection method according to A370 execution, the mechanical properties of the steel plate should comply with the provisions of the table 2, sample along the lateral sampling, testing and longitudinal extension performance. The yield strength press σ s0.2 detection.

Table 2

3.4 Hardness: delivery the whole section steel hardness 20 ~ 30 HRC; Surface brinell hardness creasing for BR3.6 ~ 4.0 mm in diameter.