Trading specifications

Physical specifications

Delivery locations
Material is stored on warrant within one of the global network of approved storage facilities for LME Steel Billet

Brands
All steel billet delivered must be brands named in the LME-approved list.

Quality
From 1 February 2011 warrants created under the LME Steel Billet contract must conform to one of the nine grades listed below, however producers are not expected to specifically reference the LME grades on any documentation.

	Grade 1	Grade 2	Grade 3
Carbon (C)	0.08 - 0.13%	0.10 - 0.15%	0.14 - 0.22%
Silicon (Si)	0.10 - 0.30%	0.15 - 0.30%	0.05 - 0.15%
Manganese (Mn)	0.30 - 0.60%	0.50 - 0.80%	0.40 - 0.65%
Sulphur (S)	0.050%	0.045%	0.05%
Phosphorus (P)	0.040%	0.045%	0.04%
Copper (C)	0.40%	0.40%	0.40%
Nickel (N)	0.20%	0.20%	0.30%
Chromium (Cr)	0.20%	0.20%	0.30%
Nitrogen (N)	0.012%	0.009**%	0.012%
CEV	-	-	-

	Grade 4	Grade 5	Grade 6
Carbon (C)	0.14 - 0.22%	0.15 - 0.22%	0.17 - 0.25%
Silicon (Si)	0.15 - 0.30%	0.15 - 0.30%	0.40 - 0.80%
Manganese (Mn)	0.40 - 0.65%	0.60 - 1.00%	1.20 - 1.60%
Sulphur (S)	0.05%	0.05%	0.045%
Phosphorus (P)	0.04%	0.05%	0.045%
Copper (C)	0.40%	0.50%	0.50%
Nickel (Ni)	0.30%	0.20%	0.20%
Chromium (Cr)	0.30%	0.20%	0.20%
Nitrogen (N)	0.012%	0.012%	-
CEV	-	0.50	0.52

	Grade 7	Grade 8	Grade 9
Carbon (C)	0.28 - 0.37%	0.28 - 0.37%	0.36 - 0.42%
Silicon (Si)	0.05 - 0.15%	0.15 - 0.30%	0.15 - 0.30%
Manganese (Mn)	0.50 - 0.80%	0.50 - 0.80%	1.00 - 1.40%
Sulphur (S)	0.05%	0.05%	0.05%
Phosphorus (P)	0.04%	0.04%	0.05%
Copper (C)	0.40%	0.40%	0.50%
Nickel (Ni)	0.30%	0.30%	0.20%
Chromium (Cr)	0.30%	0.30%	0.20%
Nitrogen (N)	0.012%	0.012%	-
CEV	-	-	-

All limits are maximum unless otherwise indicated.

*CEV (Carbon Equivalent Value) =
%C + %Mn/6 + (%Cr + %Mo + %V)/5 + (%Cu + %Ni)/15

**%N max may increase by 0.001% for every 0.005% reduction in %P

Warrants created up until 23 March 2011 may comply with earlier physical specifications and may remain on warrant after this date.

Dimensions
Steel billet delivered must conform to one of the following lengths and dimensions:

Length	Metric	Inches
Short (S)	5,800mm – 6000mm	19’ 8”
Long (L)	11,700mm – 12,000mm	39’ 4”

• All lengths are to be in 100mm increments within the stated range and subject to a +/- 100mm tolerance or a +/- 4 inch tolerance

Dimensions	Metric	Inches
100 S or 100 L	100mm x 100mm	4” x 4”
120 S or 120 L	120mm x 120mm	4¾” x 4¾”
125 S or 125 L	125mm x 125mm	5” x 5”
130 S or 130 L	130mm x 130mm	5¼” x 5¼”
140 S or 140 L	140mm x 140mm	5½” x 5½”
150 S or 150 L	150mm x 150mm	6” x 6”

• All section dimensions are subject to a +/- 3mm tolerance or a +/- one-eighth of an inch tolerance

Each lot shall be made up from one size, length, brand and grade only.