Martin Prad

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Oct 26, 2010, 1:31:33 AM10/26/10

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Hi,

What is the real difference of ASTM A333 pipe from ASTM a106grB?
ASTM A333 is a low temperature CS pipe but 106 is not. What is the main features of Low temperature CS steel pipes by their chemical composition and mechanical properties?
Please share your experience on this.

Martin.

sujay kumar

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Oct 26, 2010, 1:39:00 AM10/26/10

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Dear Friend,

A333 LTCS,its Al killed chemical properties,impcat value is conformed.

if other than more,please let me know about this.

thanks and regards

Sujay

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govindasamy neethipathi

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Oct 26, 2010, 6:04:38 AM10/26/10

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A106 Grade Carbon steels are called KILLED carbon steel and used for Normal and Hot services(Temperature ranging between 100 ^oF - 750 ^oF .Where as A53 Grade carbon steels were not called as Killed caron steel.

A333 Grade car steels were suitable for Low temperature services.

A106 Grade B Carbon Steel Pipes - Pressure and Temperature Ratings

Pressure (psig) and temperature (deg F) ratings of A106 Grade B carbon steel pipes - temperatures ranging 100 ^oF - 750 ^oF

Ratings are given for standard seamless pipes at temperatures ranging 100^oF - 750^oF. Ratings in psig based on ANSI/ASME B 31.1.

Maximum Allowable Pressure (psig)
Pipe Size (inches)	Pipe Schedule	Temperature (^oF)
Pipe Size (inches)	Pipe Schedule	100	200	300	400	500	600	650	700	750
1"	40¹⁾	2857	2857	2857	2857	2857	2857	2857	2743	2476
	80²⁾	3950	3950	3950	3950	3950	3950	3950	3792	3423
	160	5757	5757	5757	5757	5757	5757	5757	5526	4989
1 1/2"	40	2116	2116	2116	2116	2116	2116	2116	2032	1834
	80	2983	2983	2983	2983	2983	2983	2983	2864	2585
	160	4331	4331	4331	4331	4331	4331	4331	4157	3753
2"	40	1783	1783	1783	1783	1783	1783	1783	1712	1545
	80	2575	2575	2575	2575	2575	2575	2575	2472	2232
	160	4217	4217	4217	4217	4217	4217	4217	4049	3655
3"	40	1693	1693	1693	1693	1693	1693	1693	1625	1467
	80	2394	2394	2394	2394	2394	2394	2394	2298	2074
	160	3600	3600	3600	3600	3600	3600	3600	3456	3120
4"	40	1435	1435	1435	1435	1435	1435	1435	1378	1244
	80	2075	2075	2075	2075	2075	2075	2075	1992	1798
	160	3376	3376	3376	3376	3376	3376	3376	3241	2926
5"	40	1258	1258	1258	1258	1258	1258	1258	1208	1090
	80	1857	1857	1857	1857	1857	1857	1857	1783	1610
	160	3201	3201	3201	3201	3201	3201	3201	3073	2774
6"	40	1143	1143	1143	1143	1143	1143	1143	1098	991
	80	1794	1794	1794	1794	1794	1794	1794	1722	1554
	160	3083	3083	3083	3083	3083	3083	3083	2960	2672
8"	40	1006	1006	1006	1006	1006	1006	1006	966	872
	80	1586	1586	1586	1586	1586	1586	1586	1523	1375
	160	2976	2976	2976	2976	2976	2976	2976	2857	2579
10"	40	913	913	913	913	913	913	913	876	791
	80	1509	1509	1509	1509	1509	1509	1509	1448	1308
	160	2950	2950	2950	2950	2950	2950	2950	2832	2557

¹⁾ STD (standard) = schedule 40

²⁾ XS (extra strong) = schedule 80

ASTM A333 Grade Pipes

Material standard：
ASTM A333——Seamless and Welded Steel Pipe for Low-Temperature Service
Mainly Grade：
Grade 1, Grade 3, Grade 4, Grade 6, Grade 7, Grade 8, Grade 9, Grade 10, Grade 11

-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Features Specifications:

Strike temperature condition：

Crade	The lowest temperature for strike test
Crade	℉	℃
Grade 1	-50	-45
Grade 3	-150	-100
Grade 4	-150	-100
Grade 6	-50	-45
Grade 7	-100	-75
Grade 8	-320	-195
Grade 9	-100	-75
Grade 10	-75	-60

Standard	Grade	Tensile Strength（MPa）	Yield Point（MPa）	Elongation（％）
Standard	Grade	Tensile Strength（MPa）	Yield Point（MPa）	Y	X
ASTM A333	Grade 1	≥380	≥205	≥35	≥25
	Grade 3	≥450	≥240	≥30	≥20
	Grade 4	≥415	≥240	≥30	≥16.5
	Grade 6	≥415	≥240	≥30	≥16.5
	Grade 7	≥450	≥240	≥30	≥22
	Grade 8	≥690	≥515	≥22
	Grade 9	≥435	≥315	≥28
	Grade 10	≥550	≥450	≥22
	Grade 11	≥450	≥240	≥18

Standard

Grade

Chemical Composition（％）

C

Si

Mn

P

S

Cr

Ni

Cu

Mo

V

Al

ASTM A333

Grade 1

≤0.30

0.40～1.06

≤0.025

Grade 3

≤0.19

0.18～0.37

0.31～0.64

≤0.025

3.18～3.82

Grade 4

≤0.12

0.18～0.37

0.50～1.05

≤0.025

0.44～1.01

0.47～0.98

0.40～0.75

0.04～0.30

Grade 6

≤0.30

≥0.10

0.29～1.06

≤0.025

Grade 7

≤0.19

0.13～0.32

≤0.90

≤0.025

2.03～2.57

Grade 8

≤0.13

0.13～0.32

≤0.90

≤0.025

8.40～9.60

Grade 9

≤0.20

0.40～1.06

≤0.025

1.60～2.24

0.75～1.25

Grade 10

≤0.20

0.10～0.35

1.15～1.50

≤0.03

≤0.015

≤0.15

≤0.25

≤0.015

≤0.50

≤0.12

≤0.06

Grade 11

≤0.10

≤0.35

≤0.6

≤0.025

≤0.50

35.0～37.0

≤0.50

Regards,

--

Ahmed Husain

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Oct 26, 2010, 6:41:55 AM10/26/10

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Dear Friends,

ASME II,A106 para 5.1

Hot-finished pipe need not be heat treated. Colddrawn

pipe shall be heat treated after the final cold draw

pass at a temperature of 1200°F (650°C) or higher

ASME II SA333/SA333M Para 4.2

All seamless and welded pipe, other than

Grades 8 and 11, shall be treated to control their microstructure.

So the main feature of LTCS is that all the pipes are heat treated to control their micro structure

Ahmed Husain

From: sujay kumar <suja...@gmail.com>
To: material...@googlegroups.com
Sent: Tue, October 26, 2010 8:39:00 AM
Subject: Re: [MW:7810] low temperature pipe and ASTM A106

Martin Prad

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Oct 26, 2010, 7:58:54 AM10/26/10

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Dear sir,

I know that it is a LTCS. Please see below the properties of them separately extracted from the material certificate.

ASTM A333 Gr.6
Chemical composition
C-0.16, Si-0.19, Mn-1.03, P-0.010, S-0.003, Cr-0.18 and etc....
Mechanical properties
YS-315 mpa
TS-478 mpa
Heat treatment condition
Normalised at 920 degree C

ASTM A106 Gr.B
Chemical composition
C-0.15, Si-0.15, Mn-1.05, P-0.020, S-0.010, Cr-0.20, Ni-0.020 and others
Mechanical properties
YS-295 mpa
TS-515 mpa
Heat treatment condition
Hot finished

As you see there is no major difference between these two pipe grades by chemical composition and mechanical properties. therefore the question I would formulate as follows:

1. If the above parameters are similar why we can not use 106 gr b pipe in low temperature service?
2. Which mettalurgical or chemical process makes the pipe LTCS?

Thanks.

Date: Tue, 26 Oct 2010 13:04:38 +0300
Subject: Re: [MW:7823] low temperature pipe and ASTM A106
From: neeth...@gmail.com
To: material...@googlegroups.com

A106 Grade Carbon steels are called KILLED carbon steel and used for Normal and Hot services(Temperature ranging between 100 ^oF - 750 ^oF .Where as A53 Grade carbon steels were not called as Killed caron steel.

A333 Grade car steels were suitable for Low temperature services.

A106 Grade B Carbon Steel Pipes - Pressure and Temperature Ratings

Pressure (psig) and temperature (deg F) ratings of A106 Grade B carbon steel pipes - temperatures ranging 100 ^oF - 750 ^oF

Ratings are given for standard seamless pipes at temperatures ranging 100^oF - 750^oF. Ratings in psig based on ANSI/ASME B 31.1.

¹⁾ STD (standard) = schedule 40
²⁾ XS (extra strong) = schedule 80

ASTM A333 Grade Pipes

Material standard嚙瘦
ASTM A333嚙碼嚙碼Seamless and Welded Steel Pipe for Low-Temperature Service
Mainly Grade嚙瘦

Grade 1, Grade 3, Grade 4, Grade 6, Grade 7, Grade 8, Grade 9, Grade 10, Grade 11

On Tue, Oct 26, 2010 at 8:31 AM, Martin Prad <marti...@hotmail.com> wrote:

Hi,

What is the real difference of ASTM A333 pipe from ASTM a106grB?
ASTM A333 is a low temperature CS pipe but 106 is not. What is the main features of Low temperature CS steel pipes by their chemical composition and mechanical properties?
Please share your experience on this.

Martin.

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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

Richard Bonardo

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Oct 27, 2010, 12:19:19 AM10/27/10

to material...@googlegroups.com

Martin :

From the chemical composition point of view there is no significant difference between both material.
However, to be classified as LTCS one manufacturer shall conduct additional impact test in a certain low temperature,as mandated in section 8 of ASTM A 333, where as you can compare ASTM A106 does not requires such test.

Vice versa, to be classified as A 106 (high temperature service) codes require material withstand more stringent test at high temperature.

Please take a look at ASME sec II part D here you can see at 550 C A106 "still" has recommended tensile strenght of 11.2 Mpa, while A333 only recomended up to 375 C

other member please correct me if i'm wrong.

Regards
Bonardo

From: Martin Prad <marti...@hotmail.com>
To: material...@googlegroups.com
Sent: Tue, 26 October, 2010 6:58:54 PM
Subject: RE: [MW:7834] low temperature pipe and ASTM A106

Material standard：
ASTM A333——Seamless and Welded Steel Pipe for Low-Temperature Service
Mainly Grade：

Grade 1, Grade 3, Grade 4, Grade 6, Grade 7, Grade 8, Grade 9, Grade 10, Grade 11

On Tue, Oct 26, 2010 at 8:31 AM, Martin Prad <marti...@hotmail.com> wrote:

Hi,

What is the real difference of ASTM A333 pipe from ASTM a106grB?
ASTM A333 is a low temperature CS pipe but 106 is not. What is the main features of Low temperature CS steel pipes by their chemical composition and mechanical properties?
Please share your experience on this.

Martin.

--
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To unsubscribe from this group, send email to materials-weld...@googlegroups.com
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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

Ahmed Husain

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Oct 27, 2010, 12:06:22 AM10/27/10

to material...@googlegroups.com

Dear Mr. Martin,

LTCS have high toughness value because of heat treatment (normalizing above 800C and quenching) they undergo during manufacturing process. Other wise chemical and tensile properties are in the same range.

Regards,

Ahmed Husain
Mob-0547170325

From: Martin Prad <marti...@hotmail.com>
To: material...@googlegroups.com

Sent: Tue, October 26, 2010 2:58:54 PM
Subject: RE: [MW:7834] low temperature pipe and ASTM A106

Material standard：
ASTM A333——Seamless and Welded Steel Pipe for Low-Temperature Service
Mainly Grade：

Grade 1, Grade 3, Grade 4, Grade 6, Grade 7, Grade 8, Grade 9, Grade 10, Grade 11

On Tue, Oct 26, 2010 at 8:31 AM, Martin Prad <marti...@hotmail.com> wrote:

Hi,

What is the real difference of ASTM A333 pipe from ASTM a106grB?
ASTM A333 is a low temperature CS pipe but 106 is not. What is the main features of Low temperature CS steel pipes by their chemical composition and mechanical properties?
Please share your experience on this.

Martin.

--
To post to this group, send email to material...@googlegroups.com
To unsubscribe from this group, send email to materials-weld...@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

israr

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Aug 27, 2025, 11:19:22 AM (11 days ago) Aug 27

to Materials & Welding

Is there below 2'' pipe of material SA 333 Gr.6 supply in hot finish condition?

Chaudhary Zafar Iqbal

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Aug 27, 2025, 11:29:16 AM (11 days ago) Aug 27

to material...@googlegroups.com

Dear

ASTM A333 and ASTM A106 are both carbon steel pipe specifications, but they serve different purposes and have distinct characteristics.

ASTM A333 pipes are designed for low-temperature service, typically below -50°F (-45°C). They are made from low-temperature carbon steel and are suitable for applications where the pipes will be exposed to cold temperatures.

ASTM A106 pipes, on the other hand, are suitable for high-temperature service and are often used in power plants, refineries, and other high-temperature applications.

The main differences between A333 and A106 pipes are:

1.Temperature range: A333 pipes are designed for low temperatures, while A106 pipes are suitable for higher temperatures.

2. Material composition: A333 pipes have a specific chemical composition that ensures low-temperature toughness, while A106 pipes have a different composition that prioritizes high-temperature strength.

3. Mechanical properties: A333 pipes have specific requirements for impact testing and notch toughness, which are not required for A106 pipes.

Regarding SA 333 Gr.6 pipes below 2" in hot-finished condition, it's possible to supply them in this condition. However, it's essential to verify the specific requirements of your project or application to ensure compliance.

In terms of chemical composition and mechanical properties, low-temperature CS steel pipes like A333 typically have:

1)Lower carbon content to improve toughness

2)Specific requirements for manganese, silicon, and other elements to enhance low-temperature properties

3)Impact testing requirements to ensure toughness at low temperatures

A106 pipes, on the other hand, prioritize high-temperature strength and may have different chemical composition and mechanical property requirements.

Your experience with these pipes will depend on your specific application and industry.

Regards

Ch Zafar

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low temperature pipe and ASTM A106

Martin Prad

sujay kumar

govindasamy neethipathi

A106 Grade Carbon steels are called KILLED carbon steel and used for Normal and Hot services(Temperature ranging between 100 oF - 750 oF .Where as A53 Grade carbon steels were not called as Killed caron steel.

A106 Grade B Carbon Steel Pipes - Pressure and Temperature Ratings

Pressure (psig) and temperature (deg F) ratings of A106 Grade B carbon steel pipes - temperatures ranging 100 oF - 750 oF

Ahmed Husain

Martin Prad

A106 Grade Carbon steels are called KILLED carbon steel and used for Normal and Hot services(Temperature ranging between 100 oF - 750 oF .Where as A53 Grade carbon steels were not called as Killed caron steel.

A106 Grade B Carbon Steel Pipes - Pressure and Temperature Ratings

Pressure (psig) and temperature (deg F) ratings of A106 Grade B carbon steel pipes - temperatures ranging 100 oF - 750 oF

Richard Bonardo

Ahmed Husain

israr

Chaudhary Zafar Iqbal

A106 Grade Carbon steels are called KILLED carbon steel and used for Normal and Hot services(Temperature ranging between 100 ^oF - 750 ^oF .Where as A53 Grade carbon steels were not called as Killed caron steel.

Pressure (psig) and temperature (deg F) ratings of A106 Grade B carbon steel pipes - temperatures ranging 100 ^oF - 750 ^oF

A106 Grade Carbon steels are called KILLED carbon steel and used for Normal and Hot services(Temperature ranging between 100 ^oF - 750 ^oF .Where as A53 Grade carbon steels were not called as Killed caron steel.

Pressure (psig) and temperature (deg F) ratings of A106 Grade B carbon steel pipes - temperatures ranging 100 ^oF - 750 ^oF