A513 Type 1A & 1B Steel Tubing

Mill plant: LAIWU steel

Standards: ASTM A513

Grades: 1010, 1020

Outer diameter: 1.05″ to 12.75″

Length: 20′ or 24″

Heat treatment: Hot Rolled Electric Resistance Welded (REW)

ASTM A513 specification covers carbon and alloy Electric Resistance Welded (ERW) carbon steel tubing for use as mechanical and a variety of industrial, agricultural and transportation-related end uses. It can be classified Type1 (Hot Rolled Electric Resistance Welded), Type 2 (cold rolled) and Type 5 (Drawn Over Mandrel) according to its treatment processing.

Wiho metals produce round carbon and alloy ERW mechanical tubing to ASTM A513 Type 1A and Type 1B ranging from 1.05″ OD up to 12.75″ OD and in nominal wall thicknesses beginning at 0.049″ and larger. A513 Type 1A is hot rolled and 1B has been pickled to remove scale then oiled which provides a cleaner surface than hot-rolled 1A tubing.


Steel grade UNS EN/DIN JIS BS GB
1010 G10100 SK10(1.1121) S10C 040A10



1020 G10200 / S20C






A513 Type1A/1B  Grade 1010/1020 Chemical Composition

Grades C Mn P, max S, max
1010 0.08-0.13 0.30-0.60 0.035 0.035
1020 0.17-0.23 0.30-0.60 0.035 0.035


A513 Type1 Grade 1010/1020 Mechanical Property

Grades Tensile strength (Mpa) Yield strength (Mpa) Elongation % Hardness, RB
1010 379 310 12 68
1020 448 379 10 75


Wiho Steel is a fully stocked and leading metal manufacturer, supplier, exporters, distributors of steel pipe, tubing, bar and rod. We supply and stock a large inventory of precious 1010, 1020 tubing(G10200/S20C) in accordance with ASTM A513 Type1A and 1B used for automotive, mechanical and machining parts. For more information on our extensive steel alloys inventory, please contact us or fill in the form below.

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