visit www.matweb.com

Here are some details regarding HSS:

But, in short - there is no ASTM equivalent to A847, or else why would you need two standards? I am not sure about other international grades though.

A847 and A500-C have similar mechanical properties, however, the biggest difference is the weathering capabilities of A847. It offers enhanced resistance to atmospheric corrosion and, in some cases, can be used in the bare condition for some applications.

ASTM A500 / A500M - 07 Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes

ASTM A847 / A847M - 05 Standard Specification for Cold-Formed Welded and Seamless High-Strength, Low-Alloy Structural Tubing with Improved Atmospheric Corrosion Resistance

You MUST speak with your client if you want to substitute materials!!

Hello Israel,

Here is a bit from ASTM,

This steel is weather resistant and can be used un-painted.

A847/A847M-05 Standard Specification for Cold-Formed Welded and Seamless High-Strength, Low-Alloy Structural Tubing with Improved Atmospheric Corrosion Resistance

The site below describes how your ref steel HSS a 847 is very similar to the HSS 500, this site explains how this came about by the implimentation of a new allowance on the 1997 HSS A 847. It appears the new stanstart is 7% less strong. But this is explained in full on this site.

I hope this is helpful.

http://www.aisc.org/Template.cfm?Section=Back_Issues1&template=/ContentManagement/ContentDisplay.cfm&ContentID=27888

ASTM A847 / A847M

Abstract

This specification covers standard requirements for cold-formed welded and seamless high-strength, low-alloy round, square, rectangular, or special shaped structural tubing for welded, riveted, or bolted construction of bridges and buildings and for general structural purposes where high strength and enhanced atmospheric corrosion resistance are required. Round and shaped tubing shall meet the required tensile properties such as tensile strength, yield strength, and elongation. Heat and product analysis shall be performed wherein steel materials shall conform to the required chemical composition for carbon, manganese, phosphorus, sulphur, and copper. Outside dimension tolerances for square and rectangular tubing shall not exceed the specified plus and minus tolerances. Length tolerance for structural tubing shall be in accordance with the specified values. Twist tolerances for square and rectangular structural tubing shall be indicated.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

1. Scope

1.1 This specification covers cold-formed welded and seamless high-strength, low-alloy round, square, rectangular, or special shaped structural tubing for welded, riveted, or bolted construction of bridges and buildings and for general structural purposes where high strength and enhanced atmospheric corrosion resistance are required (Note 0). The atmospheric corrosion resistance of this steel in most environments is substantially better than carbon steel with or without copper addition (). When properly exposed to the atmosphere, this steel can be used bare (unpainted) for many applications. When this steel is used in welded construction, the welding procedure shall be suitable for the steel and the intended service.

1.2 This tubing is produced in welded sizes with a maximum periphery of 64 in. [1626 mm] and a maximum wall of 0.625 in. [15.9 mm], and in seamless with a maximum periphery of 32 in. [813 mm] and a maximum wall of 0.500 in. [12.7 mm]. Tubing having other dimensions may be furnished provided such tubing complies with all other requirements of this specification.

1.3 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system is to be used independently of the other, without combining values in any way.Note 0Products manufactured to this specification may not be suitable for those applications where low temperature notch toughness properties may be important, such as dynamically loaded elements in welded structures, etc.

Note 2

For methods of estimating the atmospheric corrosion resistance of low alloy steels see Guide G 101 or actual data.

2. Referenced Documents

A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A700 Practices for Packaging, Marking, and Loading Methods for Steel Products for Shipment
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
G101 Guide For Estimating the Atmospheric Corrosion Resistance of Low-Alloy Steels

Index Terms

ICS Number Code 23.040.10; 23.040.40; 23.040.10; 23.040.40

DOI: 10.1520/A0847_A0847M-05

ASTM International is a member of CrossRef.

ASTM A847 / A847M (Steel Standards)

Citing ASTM Standards

Have a great new year................

Your customer is the ONLY person who can make decisions about substitute materials, NOT you.

Ask him, not us.

Wow!!!

Happy New Year my dear "Guest".

Of course any deviation to customer requirements must be submitted to him for approval. Anybody who has worked a minimum time knows that. But, before making any change proposal to the customer it's advisable to have a minimum knowledge about the related matter (I use to make it so from 35 years ago and it works)

In fact I've answered hundreds of similar question at work and never said: Ask your teacher, not me.

The OP is just asking information, not approval of material change.

That's just what previous colleagues have made...

Santa gave you nothing and you're angry?

Dear Mr Chavan

We are all educated persons here and we must learn not to use the street languages.

I agree with the comment made by guest (and not of course with the gist of yours). Pl note that when you are working with petro - I expect that under API- you are not allowed to play around with standards and ask for equivalents

As has been pointed out earlier if there are two standards , both by same standards committee - there are some application specific differences otherwise nobody is intelligent enough to make two identical product under different brand names (may be at different market categories)

Hello Guest,

You are plain WRONG!....................The customer can choose what he likes by way of carpet for his office. I doubt he has any idea about appropriate steels and or pressure vessels. This is why he pays the Engineer to make decisions. He will mention about the possible choices but, when it comes down to it the Engineer has the final say where there is any choice dictated by safety.

It will be 'OKed by several professional standards bodies as the build goes through and, this question to this Forum is aimed at fully qualified and experienced Engineers who have had to choose between similar products in the past.

You do not mend your own shoes if there is a Snobber (Shoe mender) nearby.

Put your ego back in your pocket and if you have nothing to say to help.............Then say nothing!

There was no offence intended here, any seen is not on the page.

Have a great new year..................