A199 Grade T21

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America ASTM A199GradeT21 无缝冷拔中间合金钢热交换器和冷凝器管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A199GradeT21 / A199 Grade T21

Category	Grade	Standard	Region/Area	Standard Content
Metals	A199 Grade T21	ASTM A199/A199M	America	无缝冷拔中间合金钢热交换器和冷凝器管

Chemical composition(mass fraction)(wt.%) of the A199 Grade T21

Element	Min	Max	Similar

The data is being updated,

Mechanical Properties of steel grade A199 Grade T21

Yield R_p0.2 (MPa)	Tensile R_m (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
562 (≥)	535 (≥)	43	43	12	Solution and Aging, Annealing, Ausaging, Q+T,etc	322

Physical Properties of steel grade A199 Grade T21

Temperature (°C)	Modulus of elasticity (GPa)	Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and	Thermal conductivity (W/m·°C)	Specific thermal capacity (J/kg·°C)	Specific electrical resistivity (Ω mm²/m)	Density (kg/dm³)	Poisson’s coefficient, ν
24	-	-			0.11	-
957	538	-	43.3	121		-
143	-	22	23.2			411	214

Heat Treatment of steel grade A199 Grade T21

Heat treated : 1426°C - 1231°C

Technological Curves of steel grade A199 Grade T21

No Curve

Cross Reference Table (Equivalent Grade) of A199 Grade T21

Grade	Standard	Country	Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1

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