Low Alloy Steel
Low Alloy Material Grades
AISI 4130 - Rolled and forged bar and products from 1" diameter thru 10" diameter in the heat treated condition. Forged bar and products from 10.00" thru 52" diameter in the heat treated or normalized/annealed condition
AISI 4130H - special chemistry, forged bar and products in heat treated and normalized/annealed condition
AISI 4140 - Rolled and forged bar and products from 1" diameter thru 10" diameter in the heat treated condition. Forged bar and products from 10.00" thru 25" diameter in the heat treated or normalized/annealed condition
AISI 4145 - rolled and forged bar to 9" diameter in heat treated condition, forged bar and products over 9" diameter in heat treated or normalized/annealed condition
AISI 4145H - special chemistry, rolled and forged bar to 9" diameter in heat treated condition
4330 - forged products in heat teated or normalized/annealed conditon
AISI 4340 - Rolled and forged bar and products from 1" diameter thru 10" diameter in the heat treated condition. Forged bar and products from 10.00" thru 33" diameter in the heat treated or normalized/annealed condition
AISI 8620 - Forged bar and products from 2.00" thru 20" diameter in the normalized/annealed condition.
AISI 8630M - Forged bar and products from 10.00" thru 40" diameter in the heat treated or normalized/annealed condition. Selected smaller sizes available.
ASTM A182 F22 - Forged bar and products from 10.00" thru 38" diameter in the heat treated or normalized/annealed condition. Selected smaller sizes available.
BS-4360 50D - Forged bar and products from 1.00" thru 34" diameter in the normalized/annealed condition. 
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