NingBo Junfun International Trade Co.,Ltd
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Payment Terms: | T/T,L/C |
Place of Origin: | Zhejiang, China (Mainland) |
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SA-213/SA-213M Specification for seamless Ferritic Alloy steel boiler, Superheater and heat exchanger tubes
Delivery Condition: Normalized and Tempered
Inspections and Tests Performed: Chemical Composition Inspection, Mechanical Properties Test(Tensile Strength, Yield Strength, Elongation, Flaring, Flattening, Bending, Hardness, Impact Test), Surface and Dimension Test, No-destructive Test, Hydrostatic Test.
Surface treatment: Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting
Inner packing: Caps on two ends of every pipe
Package: bare packing/bundle packing/wooden carton packing.
Size Tolerance | ||||
Tube Kinds | SA213 OD(D) | SA213 Thickness(S) | ||
OD(mm) | OD Tolerance(mm) | OD(mm) | Thickness Tolerance(mm) | |
Hot Rolled | =101.6 | +0.4~-0.8 | 76~168.3 | +28%~0 |
>101.6~168.3 | +0.4~-1.2 | |||
<25.4 | 0.1 | =38.1 | +20%~0 | |
25.4~38.1 | 0.15 | |||
>38.1~<50.8 | 0.2 | >38.1 | +22%~0 | |
50.8~<63.5 | 0.25 | |||
63.5~<76.2 | 0.3 | |||
76.2~101.6 | 0.38 | |||
>101.6~190.5 | +0.38~-0.64 | |||
>190.5~228.6 | +0.38~-1.14 |
Grade | Tensile Strength,Min., ksi[MPa] | Yield Strength,Min., ksi[MPa] | Elongation |
T12 | 60 [415] | 32 [220] | 30 |
T23 | 74 [510] | 58 [400] | 20 |
T91 | 85 [585] | 60 [415] | 20 |
T92 | 90 [620] | 64 [440] | 20 |
T122 | 90 [620] | 58 [400] | 20 |
18Cr-2Mo | 60 [415] | 40 [275] | 20 |
NOTES:
(1) When standard round 2 in. or 50 mm gage length or smaller proportionally sized specimens with gage length equal to 4D (4 times the diameter) is used, the minimum elongation shall be 22% for all ferritic grades except 18Cr-2Mo, T23 and T91.
(2) For longitudinal strip tests, a deduction from the basic minimum
CHEMICAL REQUIREMENTS FOR FERRITIC STEEL | ||||||||||
Composition, % | ||||||||||
Grade | Carbon | Manganese | Phosphorus, Max. | Sulfur, Max | Silicon | Chromium | Molybdenum | Titanium | Vanadium,Min. | Other Elements |
T2 [Note (1)] | 0.10~0.20 | 0.30~0.61 | 0.025 | 0.025 | 0.10~0.30 | 0.50~0.81 | 0.44~0.65 | . . . | . . . | |
T5 | 0.15 max. | 0.30~0.60 | 0.025 | 0.025 | 0.50 max. | 4.00~6.00 | 0.45~0.65 | . . . | . . . | |
T5b | 0.15 max. | 0.30~0.60 | 0.025 | 0.025 | 1.00~2.00 | 4.00~6.00 | 0.45~0.65 | . . . | . . . | |
T5c | 0.12 max. | 0.30~0.60 | 0.025 | 0.025 | 0.50 max. | 4.00~6.00 | 0.45~0.65 | [Note (1)] | . . . | |
T9 | 0.15 max. | 0.30~0.60 | 0.025 | 0.025 | 0.25~1.00 | 8.00~10.00 | 0.90~1.10 | . . . | . . . | |
T11 | 0.05 min.~0.15 max. | 0.30~0.60 | 0.025 | 0.025 | 0.50~1.00 | 1.00~1.50 | 0.44~0.65 | . . . | . . . | |
T12 [Note (1)] | 0.05 min.~0.15 max. | 0.30~0.61 | 0.025 | 0.025 | 0.50 max. | 0.80~1.25 | 0.44~0.65 | . . . | . . . | |
T17 | 0.15~0.25 | 0.30~0.61 | 0.025 | 0.025 | 0.15~0.35 | 0.80~1.25 | . . . | . . . | 0.15 | |
T21 | 0.05 min.~0.15 max. | 0.30~0.60 | 0.025 | 0.025 | 0.50 max. | 2.65~3.35 | 0.80~1.06 | . . . | . . . | |
T22 | 0.05 min.~0.15 max. | 0.30~0.60 | 0.025 | 0.025 | 0.50 max. | 1.90~2.60 | 0.87~1.13 | . . . | . . . | |
T23 | 0.04~0.10 | 0.10~0.60 | 0.03 | 0.01 | 0.50 max. | 1.90~2.60 | 0.05~0.30 | . . . | 0.20~0.30 | W 1.45~1.75 |
T91 | 0.08~0.12 | 0.30~0.60 | 0.02 | 0.01 | 0.20~0.50 | 8.00~9.50 | 0.85~1.05 | . . . | 0.18~0.25 | Cb 0.06~0.1 |
T92 | 0.07~0.13 | 0.30~0.60 | 0.02 | 0.01 | 0.50 max. | 8.50~9.50 | 0.30~0.60 | . . . | 0.15~0.25 | W 1.5~2.00 |
T122 | 0.07~0.14 | 0.70 max. | 0.02 | 0.01 | 0.50 max. | 10.00~12.50 | 0.25~0.60 | . . . | 0.15~0.30 | W 1.50~2.50 |
18Cr-2Mo | 0.025 max. | 1.00 max. | 0.04 | 0.03 | 1.00 max. | 17.5~19.5 | 1.75~2.50 | [Note (3)] | . . . | N max. 0.035 |
NOTES:
(1) It is permissible to order T2 and T12 with 0.045 max. Sulfur.
(2) Grade T5c shall have a titanium content of not less than four times the carbon content and not more than 0.70%.
(3) Grade 18Cr-2Mo shall have Ti + Cb p 0.20 + 4 (C + N) min., 0.80 max.