ASTM A335 P91 Pipe and UNS K91560 Seamless Pipe Schedule Chart

ASTM A335 P91 Steel Material Highlights
Specifications	ASTM A335 \| ASME SA 335
Size:	1/2″ to 24″& DN 25 to DN 160
Wall Thickness	2.0 MM to 14 MM
Standard	ASME B36.10M
Surface Finish	Varnished, Polished, FBE, 3PE
Density	7.76 kg/dm³
Melting Point	1450-1510 °C
Certificate	EN 10204 3.1 & 3.2

UNS K91560 Seamless Pipe Supplier in India

ASTM A335 P91 Pipe

ASTM A335 P91 Seamless Pipe

SA 335 gr P91 Welded Pipe

Table of Contents

ASTM A335 P91 Pipe Specification
ASTM A335 P91 Seamless Pipe Schedule Chart
ASTM A335 P91 Pipe Weight Chart
UNS K91560 ERW Pipe Welding Process
Testings Methods of ASTM A335 P91 Boiler Pipe
ASTM A335 P91 Pipe Size Chart
Mill Tolerance of ASTM A335 P91 EFW Pipe
ASTM A335 P91 Pipe Thickness Chart
Allowable or Permissible Variation of UNS K91560 Chrome Pipe
ASTM A335 P91 Seamless Pipe Heat Treatment
Types of ASTM A335 P91 Alloy Steel Pipe
UNS K91560 ERW Pipe Chemical Composition
Mechanical Properties of ASTM A335 P91 Pipe
SA 335 gr P91 Welded Pipe Equivalent Material
Physical Properties of NBR 5603 P91 High Pressure Pipe
ASTM A335 P91 Pipe Applications
Features of ASTM A335 P91 Alloy Steel Pipe
Low Alloy ASTM A335 P91 Chrome Pipe Wall Thickness
What Are ASTM A335 P91 Pipes Two Varieties ?
Material Temperature of Ferritic Alloy Steel ASTM A335P91 Pipe
ASTM A335 P91 Alloy Steel Pipe Tensile Strength
Provides the Following Brands Ex-stock of ASTM A335 P91 Steel Material
Allowable Stress of ASTM P91 High Pressure Boiler Pipe
ASTM A335 P91 Pipe HSN Code
Elongation Requirements of SA 335 gr P91 Seamless Pipe
Supply ASTM A335 P91 Pipe Ex Stock to the Following Countries

ASTM A335 P91 Pipe Specification

ASTM A335 P91 Seamless Pipe Sizes

Size: 1/2” – 30” Inch
OD : 19.05 to 114.3 mm
Wall thickness: 4.5 – 60 mm
Length: 6, 12 Meters, Single & Cut Length

UNS K91560 ERW Pipe Manufacturing Types

Welded
ERW
EFW
DSAW, LSAW, SSAW
Seamless

ASTM A335 P91 EFW Pipe Temperature Limit

1040-1080 °C
1900-1975 °F

ASTM A335 grade P91 Steel Pipe Types

ERW Pipe
Seamless Pipe
EFW pipe
Welded Pipe
Round Pipe

NBR 5603 P91 Chrome Moly Pipe Standard

ASME B36.10M

ASTM A335 P91 Boiler Pipe Testing

Mechanical
Ultrasonic
Tensile
Hardness
PMI
Flaring

ASTM A335 P91 Pipe Coating & Surface

Polished
FBE/ Epoxy
Varnished
3PE

ASTM A335 grade P91 Round Pipe End Types

Bevelled End
Plain End
Threaded End
Groove Ends

ASTM A335 P91 Boiler Pipe Schedule

SCH 80 to SCH 120
SCH 5 to SCH 10
SCH XXS to SCH XS
SCH 20 to SCH 30
4 Inch
SCH 160

ASTM A335 P91 Boiler Pipe Packaging

Bubble Wraps
Wooden Box
Bundled

Melting Point of ASTM A335 grade P91 Round Pipe

1450-1510 °C
2642-2750°F °F

NBR 5603 P91 Chrome Moly Pipe Services

Cutting
Punching
Bending
Welding

ASTM P91 High Pressure Boiler Pipe Documentation

PMI Test Reports
MTC EN 10204 type 3.1
Visual Inspection
Mill Test Certificates

Low Alloy ASTM A335 P91 Chrome Pipe Origin

American
Russia
Janpanese
Indian
European

Delivery Condition of ASTM A335 P91 Seamless Pipe

GBK – Annealed
BKW – Soft/ Cold-finished
NBK – Normalized
BK- Hard/ Cold-finished

ASTM A335 Grade P91 Chrome Moly Pipe Schedule Chart

ASTM A335 P91 Seamless Pipe Schedule Chart

An Extensive Range of Diameters is Offered by the Indian Manufacturer of ASTM A335 P91 Pipes to Satisfy Customer Demands

NB	Sizes	Outside Daimeter	S160	S140	S120	S100	S80	S60	S40	S20	S10	5S	XXS
NB	Sizes	(MM)	(MM)	(MM)	(MM)	(MM)	(MM)	(MM)	(MM)	(MM)	(MM)	(MM)	(MM)
900	36	914.4							19.1	13	7.9
850	34	863.6							17.5
800	32	812.8							17.5
750	30	762										6.4
700	28	711.2
650	26	660.4
600	24	609.6	59.5	52.4	46	38.9	31	24.6	17.5	9.5	6.4	5.5
550	22	558.8	54	47.6	41.3	34.9	28.6	22.2				4.8
500	20	508	50	44.5	38.1	32.5	26.2	20.6	15.1			4.8
450	18	457.2	45.2	39.7	34.9	29.4	23.8	19.1	14.3	7.9		4.2
400	16	406.4	40.5	36.5	31	26.2	21.4	16.7	12.7			4.2
350	14	355.6	35.7	31.8	27.8	23.8	19.1	15.1	11.1			4
300	12	323.9	33.3	28.6	25.4	21.4	17.5	14.3	10.3	6.4		4	25.4
250	10	273.1	28.6	25.4	21.4	19.3	15.1	12.7	9.27			3.4	25.4
200	8	219.1	23	20.6	19.3	15.1	12.7	10.3	8.18			2.8	22.2
150	6	168.3	18.3		14.3		11		7.11			2.8	22
100	4	114.3	13.5		11.1		8.56		6.02			2.1	17.1
80	3	88.9	11.1				7.62		5.49			2.1	15.2
50	2	60.33	9.74				5.54		3.91			1.7	11.1
25	1	33.4	6.35				4.55		3.38				9.09
20	3/4	26.67	5.56				3.91		2.87				7.82
15	1/2	21.34	4.78				3.73		2.77				7.47
10	3/8	17.15					3.2		2.31
6	1/8	10.29					2.41		1.73

Low Alloy ASME SA335 P91 Boiler Steel Pipe Weight Chart

ASTM A335 P91 Pipe Weight Chart

Size in (IN.)	Weight in (lb/ft)
Size in (IN.)	Schedule 10	Schedule 40	Schedule 160
24	42.17	48.36	90.35
20	35.77	40.16	73.51
18	29.72	33.34	62.08
14	22.09	25.7	46.05
10	16.45	18.89	34.36
6	10.1	11.6	19.68
4	7.26	8.06	13.63
2	3.57	3.89	6.38
1 1/2	2.63	2.92	4.5
1	1.68	1.89	3.06
1/2	0.77	1.14	1.87

SA335 Gr P91 High Temperature Seamless Pipe Welding Procedure

UNS K91560 ERW Pipe Welding Process

Manufacturer of NBR 5603 P91 Pipe Material Provide Flattening and Bend Test At Best Price

Testings Methods of ASTM A335 P91 Boiler Pipe

Hardness Testing
DYE Penetrant
Radiographic Testing
Hydrostatic Testing
Tensile Testing
Magnetic Particle Testing
Ultrasonic Testing

ASTM A335 P91 Pipe Size Chart

Outside Daimeter * Thickness in (MM)	Outside Daimeter * Thickness in (MM)	Outside Daimeter * Thickness in (MM)
139.7 * 6.3	76.2 * 3.6	57.0 * 3.6
139.7 * 5.0	70.0 * 6.3	57.0 * 3.2
139.7 * 4.0	70.0 * 3.6	51.0 * 6.3
114.3 * 5.0	70.0 * 3.2	51.0 * 3.6
114.3 * 3.6	63.5 * 7.9	51.0 * 3.2
101.6 * 6.3	63.5 * 6.3	50.8 * 4.5
101.6 * 4.5	63.5 * 4.0	48.3 * 3.6
101.6 * 3.6	63.5 * 3.6	48.3 * 3.2
88.9 * 4.0	63.5 * 3.2	44.5 * 6.3
88.9 * 3.6	60.3 * 5.0	44.5 * 3.2
88.9 * 3.2	60.3 * 3.6	42.4 * 4.0
82.5 * 4.5	60.3 * 3.2	42.4 * 3.2
76.2 * 6.3	57.0 * 7.9	38.1 * 6.3
76.2 * 5.0	57.0 * 6.3	38.1 * 4.0
76.2 * 4.0	57.0 * 4.9	38.1 * 3.2

Mill Tolerance of ASTM A335 P91 EFW Pipe

NPS of ASTM A335 P91 Steel Material	Tolerance of P91 Pipe (% from Specified)
NPS of ASTM A335 P91 Steel Material	Under	Over
All WT / OD ratios 1/8 NPS to 2 1/2 NPS [6 to 65] inclusive	12.5%	20.0%
WT / OD < or = 5% Above 2 1/2 NPS [65]		22.5%
WT / OD > 5% Above 2 1/2 NPS [65]		15.0%
OD Means = Outside Diameter of Specified WT Means = Wall Thickness of Specified

ASTM A335 P91 Pipe Thickness Chart

Wall Thickness of Steel Grade P91 ASTM A335 Pipe
(Millimetre)	(Inches)
8	5/16
7.2	9/32
6.4	1/4
5.6	7/32
4.8	3/16
4	5/32
3.2	7/8
2.4	3/32
1.6	1/18

Allowable or Permissible Variation of UNS K91560 Chrome Pipe

NPS of Steel Gr. P91 ASTM A335 Pipe	Under		Over
NPS of Steel Gr. P91 ASTM A335 Pipe	(Millimetre)	(INCHES)	(Millimetre)	(INCHES)
Over 12 NPS [300]	+/- 1% of the P91 Specified OD
Over 8 NPS - 12 NPS [200 to 300], inclu	0.79	1/32 (0.031)	2.38	3/32 (0.093)
Over 4 NPS - 8 NPS [100 to 200], inclu	0.79	1/32 (0.031)	1.59	1/16 (0.062)
1/8 NPS - 1 1/2 NPS [6 to 40], inclu	0.40	1/64 (0.015)	0.40	1/64 (0.015)
Over 1 1/2 NPS - 4 NPS [40 to 100], inclu	0.79	1/32 (0.031)	0.79	1/32 (0.031)

ASTM A335 P91 Seamless Pipe Heat Treatment

Gr.	Types	UNS	Solutioning Temp. (Min) in °F	Tempering Temp. (Min) in ᵒF
P91	Quench Temper & Normalize	K91560	1900 - 1975	1350 - 1470

Types of ASTM A335 P91 Alloy Steel Pipe

Astm A335 P91 Pipe Supplier in India Offer a Variety of Types

UNS K91560 ERW Pipe

ASTM A335 P91 Boiler Pipe

ASTM A335 P91 Steel High Pressure Pipe

NBR 5603 P91 Chrome Moly Pipe

ASTM A335 P91 EFW Pipe

SA335 P91 High Temperature Seamless Pipe

ASTM A335 grade P91 Round Pipe

Low Alloy ASTM A335 P91 Chrome Pipe

ASTM P91 High Pressure Boiler Pipe

UNS K91560 ERW Pipe Chemical Composition

Low Alloy ASTM A335 Material (Grades)	S≤	C≤	Mn	Cr	Si≤	Mo	P≤
P91	0.010	0.08 ~ 0.12	0.30 ~ 0.60	8.00 ~ 9.50	0.20 ~ 0.50	0.85 ~ 1.05	0.020

Mechanical Properties of ASTM A335 P91 Pipe

The Best Pipes With Exceptional Mechanical Properties Are Offered by ASTM A335 P91 Pipe Supplier in India

Grade	Yield Stress, MPa	Hardness, HB	Tensile Stress , MPa	Elongation, %
ASTM A335 grade P91 Steel Pipe	415 Min	250 Max	585 Min	20 Min

SA 335 gr P91 Welded Pipe Equivalent Material

Gr.	ASME	ASTM	UNS	DIN / WNR	EN
ASTM A335 grade P91 Steel Pipe	SA335	A335	K91560	1.4903	X10CrMoVNb9-1

Physical Properties of NBR 5603 P91 High Pressure Pipe

Temp in (T) ° C / ° F (° C / F)	Expansion Coefficient in (20 ° C) to T in 10 -6 / K (10 -6 / ° F)	Young's Modulus in kN / mm 2 (10 3 ksi)	Specific Heat in J / kgK (Btu / lb ° F)	Thermal Conductivity in W / mK (Btu · in / ft 2 · h · ° F)
650/1202	12.7 (-)	162 (-)
600/1112	12.6 (-)
500/932	12.3 (-)			30 (-)
400/752	12.0 (-)	190 (-)
200/392	11.3 (-)	207 (-)
20/68		218 (-)	460 (-)	26 (-)

ASTM A335 P91 Pipe Applications

Features of ASTM A335 P91 Alloy Steel Pipe

Creep Resistance
Strength
Corrosion Resistance
Temperature Tolerance
Hardenability
Wear Resistance
Impact Quality
Elastic Limit

Low Alloy ASTM A335 P91 Chrome Pipe Wall Thickness

Types of ASTM A335 P91 Pipes	Wall Thickness (W.T.)	Outer Daimeter (OD) in Inches
Boiler	As per Client's Demand	16 to 100
ERW		1/2 to 24
Welded		1/2 to 24
Seamless	SCH 5 / 10 / 40 / 80 / 160	1/2 to 60

What Are ASTM A335 P91 Pipes Two Varieties ?

Type 1 Pipe
Type 2 Pipe

Material Temperature of Ferritic Alloy Steel ASTM A335P91 Pipe

Grade	Temperature in (ºC)	Conditions
ASTM A335 P91 Pipe	-10 to 650 (ºC)	Operating
	1100 - 1150 (ºC)	Hot Forming
	1040 - 1100 (ºC)	Hardening
	1040 - 1100 (ºC)	Normalizing

ASTM A335 P91 Alloy Steel Pipe Tensile Strength

Grade	Tensile Strength
Grade	MPa	ksi
Steel Grade P91 ASTM A335 Pipe	585 (MPa)	85 (ksi)

Provides the Following Brands Ex-stock of ASTM A335 P91 Steel Material

Jindal

Outokumpo

Acronis

Thyssenkrupp

Posco

Nippon Steel

Allowable Stress of ASTM P91 High Pressure Boiler Pipe

*Temprature in °F	750	700	650	600	500	400	300	200	-20-100
*AS-II, ksi	22.2	22.9	23.4	23.7	24.1	24.2	24.3
*AS-I, ksi	22.2	22.9	23.4	23.7	24.1	24.2	24.3
*Temprature in °F	1200	1150	1100	1050	1000	950	900	850	800
*AS-II, ksi	4.3	7.0	9.6	12.9	16.3	17.8	19.1	20.3	21.3
*AS-I, ksi	4.3	7.0	10.3	14.0	16.3	17.8	19.1	20.3	21.3

ASTM A335 P91 Pipe HSN Code

Grade	HSN Code
ASTM A335 P91 Steel Material	73045930

Elongation Requirements of SA 335 gr P91 Seamless Pipe

Wall Thickness (WT)		P91 Pipe
(Inches)	(Millimetre)	Longitudinal
9/32 (0.281)	7.2	19
7/32 (0.219)	5.6	17
7/8 (0.125)	3.2	14
5/32 (0.156)	4	15
5/16 (0.312)	8	20
3/32 (0.094)	2.4	13
3/16 (0.188)	4.8	16
1/18 (0.062)	1.6	12
1/4 (0.250)	6.4	18

Supply ASTM A335 P91 Pipe Ex Stock to the Following Countries

Country Name	Flag	Country Name	Flag
South Africa		Tunisia
Angola		Kenya
Dubai		Morocco
Ghana		Zambia
Ethiopia		Egypt
Nigeria		Algeria
Tanzania		UAE