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Specifications

Cold-Drawn Round SMLS Seamless Alloy Steel Pipe T22 T23 T91 with Bare Surface , 2.11mm - 30mm Thick

Quick Detail:

Standard: ASTM/ASME A213

Grade: T2, T5, T5b, T5c, T9, T11, T12,

T17, T21, T22, T23, T24, T36,T91, T92, T122, T911

Size: (mm)

OD. Range:12.7 mm – 114.3 mm

Wall thickness: 0.8 mm-15 mm

Length: Max length 25000mm

Description:

Executive Standard		ASTM A213
Materials		T2, T5, T5b, T5c, T9, T11, T12,T17, T21, T22, T23, T24, T36,T91, T92, T122, T911
Size	Outer Diameter	12.7 mm – 114.3 mm
	Wall Thickness	0.8mm -15mm
	Length	Single random length/Double random length 5m-14m,5.8m,6m,10m-12m,12m or as customer's actual request
Ends		Plain end/Beveled,protected by plastic caps on both ends,cut quare, grooved, threaded and coupling,etc
Surface Treatment		Bare,Painting black,varnished,galvanized,anti-corrosion 3PE PP/EP/FBE coating
Technical Methods		Cold-drawn/Hot-expanded
Testing Methods		Eddy current testing, Hydrostatic testing or Ultrasonic examination, NDT and also with chemical and physical property inspection
Packaging		Small pipes in bundles with strong steel strips,large in loose pieces; Covered with plastic woven bags; Suitable for lifting operation; Loaded in 40ft or 20ft container or in bulk Also according to customer's requests
Application		boiler,superheater,and heat-exchanger tubes
Origin		Zhangjiagang Jiangsu Prov.China
Certificates		API ISO PED
Third Party Inspection		SGS BV TUV etc.

Grade and Chemical Composition(％):

Grade	C	Mn	P≤	S≤	Si	Cr	Mo	V≥
T11	0.05-0.15	0.30-0.60	0.025	0.025	0.50-1.00	0.50-1.00	1.00-1.50
T12	0.05-0.15	0.30-0.61	0.025	0.025	≤0.50	0.80-1.25	0.44-0.65
T13	0.05-0.15	0.30-0.60	0.025	0.025	≤0.50	1.90-2.60	0.87-1.13
T2	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	0.30-0.60	0.025	0.025	≤0.50	4.00-6.00	0.45-0.65
T5b	≤0.15	0.30-0.60	0.025	0.025	1.00-2.00	4.00-6.00	0.45-0.65
T5c	≤0.12	0.30-0.60	0.025	0.025	≤0.50	4.00-6.00	0.45-0.65
T9	≤0.15	0.30-0.60	0.025	0.025	0.25-1.00	8.00-10.00	0.9-1.0
T22	0.05-0.15	0.30-0.60	0.025	0.025	≤0.50	1.90-2.60	0.87-1.13
T91	0.08-0.12	0.30-0.60	0.020	0.010	≤0.50	8-9.50	0.85-1.05	0.18-0.25
T92	0.07-0.13	0.30-0.60	0.020	0.010	≤0.50	8-9.50	0.3-0.60	0.15-0.25
T21	0.05-0.15	0.30-0.60	0.025	0.025	≤0.50	2.65-3.35	0.80-1.06

Mechanical Properties:

Standard	Steel grade	Tensile(MPa)	Yield(MPa)	Elongate(%)	Hardenss
20MnG	20MnG	≥415	≥240	≥22
25MnG	25MnG	≥485	≥275	≥20
15CrMoG	15CrMoG	440～640	≥235	≥21
12Cr2MoG	12Cr2MoG	450～600	≥280	≥20
12Cr1MoVG	12Cr1MoVG	470～640	≥255	≥21
12Cr2MoWVTiB	12Cr2MoWVTiB	540～735	≥345	≥18
10Cr9Mo1VNb	10Cr9Mo1VNb	≥585	≥415	≥20
ASME SA210	SA210A-1	≥415	≥255	≥30	≤143HB
SA210C	SA210C	≥485	≥275	≥30	≤179HB
ASME SA213	SA213 T11	≥415	≥205	≥30	≤163HB
SA213 T12	SA213 T12	≥415	≥220	≥30	≤163HB
SA213 T22	SA213 T22	≥415	≥205	≥30	≤163HB
SA213 T23	SA213 T23	≥510	≥400	≥20	≤220HB
SA213 T91	SA213 T91	≥585	≥415	≥20	≤250HB
SA213 T92	SA213 T92	≥620	≥440	≥20	≤250HB
DIN17175	ST45.8/Ⅲ	410～530	≥255	≥21	/
15Mo3	15Mo3	450～600	≥270	≥22
13CrMo44	13CrMo44	440～590	≥290	≥22
10CrMo910	10CrMo910	480～630	≥280	≥20

Permitted tolerance for OD:

OD	Plus tolerance(+)	Minus tolerance (-)
10.29—48.3	0.4	0.4
<48.3—-≤114.3	0.79	0.79
<114.3—≤219.1	1.59	0.79
<219.1—≤323.9	2.38	0.79
<323.9	±1%

Applications:

High pressure, low & medium pressure boiler steel pipestubes are suitable for making super-heaters, re-heaters, water wall, and economizer in large-scale power plant.